Publications
VCSELs: Influence of Design on Performance and Data Transmission over Multi-Mode and Single-Mode Fibers
N.N. Ledentsov, N. Ledentsov, V.A. Shchukin, A.N. Ledentsov, O.Yu. Makarov, I.E. Titkov, M. Lindemann, T. de Adelsburg Ettmayer, N.C. Gerhardt, M.R. Hofmann, X. Chen, J.E. Hurley, H. Dong, M.-J. Li, Photonics 12 (2025).
Multimode vertical-cavity surface-emitting lasers under spin injection
U. Diiankova, M. Drong, T. Pusch, R. Michalzik, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, APL Photonics 10 (2025).
Laterally coupled vertical-cavity surface-emitting lasers with tunable resonance width and frequency
M. Lindemann, M. D’Alessandro, N. Ledentsov, O.Y. Makarov, N.N. Ledentsov, A. Tibaldi, N.C. Gerhardt, M.R. Hofmann, Journal of Applied Physics 138 (2025).
Quantitative holography for the characterisation of semiconductor amplifieres and lasers
N.C. Gerhardt, M.R. Hofmann, L. Zens, J. Möller, V. Besaga, in: Practical Holography XXXIX: Displays, Materials, and Applications, 2025.
Laterally coupled vertical-cavity surface-emitting lasers with tunable resonance width and frequency
M. Lindemann, M. D’Alessandro, N. Ledentsov, O.Y. Makarov, N.N. Ledentsov, A. Tibaldi, N.C. Gerhardt, M.R. Hofmann, Journal of Applied Physics 138 (2025).
Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M. Hofmann, Optics Express (2024).
Controlling the helicity of light by electrical magnetization switching
M. Lindemann, N.C. Gerhardt, P.A. Dainone, P. Renucci, A. Bouché, M. Morassi, X. Devaux, J.-M. George, H. Jaffrès, A. Lemaitre, B. Xu, M. Stoffel, T. Chen, L. Lombez, D. Lagarde, G. Cong, T. Ma, P. Pigeat, M. Vergnat, H. Rinnert, X. Marie, X. Han, S. Mangin, J.-C. Rojas-Sánchez, J.-P. Wang, M.C. Beard, I. Žutić, N. Figueiredo Prestes, Y. Lu, Nature 627 (2024) 783–788.
Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M. Hofmann, Optics Express (2024).
A low cost weather monitoring, PV and prediction system in East Africa
G.M. Kagarura, U. Hilleringmann, D. Petrov, in: 2023 IEEE International Conferences on Internet of Things (IThings) and IEEE Green Computing &Amp; Communications (GreenCom) and IEEE Cyber, Physical &Amp; Social Computing (CPSCom) and IEEE Smart Data (SmartData) and IEEE Congress on Cybermatics (Cybermatics), IEEE, 2024.
Study of Electrically Excited Photon-Photon Resonances in Self-Injection-Locked Coupled-Cavity VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, N.N. Ledentsov, V.A. Shchukin, O.Y. Makarov, V. Zerova, M. D’alessandro, A. Tibaldi, J.P. Turkiewicz, in: 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), 2024.
Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M.R. Hofmann, Optics Express 33 (2024) 34–49.
Controlling the helicity of light by electrical magnetization switching
P.A. Dainone, N.F. Prestes, P. Renucci, A. Bouché, M. Morassi, X. Devaux, M. Lindemann, J.-M. George, H. Jaffrès, A. Lemaitre, B. Xu, M. Stoffel, T. Chen, L. Lombez, D. Lagarde, G. Cong, T. Ma, P. Pigeat, M. Vergnat, H. Rinnert, X. Marie, X. Han, S. Mangin, J.-C. Rojas-Sánchez, J.-P. Wang, M.C. Beard, N.C. Gerhardt, I. Žutić, Y. Lu, Nature 627 (2024) 783–788.
Analysis of laterally-coupled-cavity VCSELs for ultra-high-frequency photon-photon resonance modulation
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, N. Ledentsov, N.N. Ledentsov, V.A. Shchukin, Ł. Chorchos, O.Y. Makarov, J.R. Kropp, I.E. Titkov, V.P. Kalosha, V. Zerova, M. D’Alessandro, V. Torrelli, A. Tibaldi, P. Debernardi, in: Vertical-Cavity Surface-Emitting Lasers XXVIII, 2024.
Study of Electrically Excited Photon-Photon Resonances in Self-Injection-Locked Coupled-Cavity VCSELs
M. (ORCiD: 0000-0002-2660-3497) Lindemann, N.C. (ORCiD: 0009-0002-5538-231X) Gerhardt, M.R. (ORCiD: 0000-0003-1265-0003) Hofmann, V.A. Shchukin, N.N. Ledentsov, O.Y. Makarov, V. Zerova, M. D’Alessandro, A. Tibaldi, J.P. Turkiewicz, (2024).
LoRa Transceiver for Load Monitoring and Control System in Microgrids
I. Mwammenywa, D. Petrov, P. Holle, U. Hilleringmann, in: 2022 International Conference on Engineering and Emerging Technologies (ICEET), IEEE, 2023.
Polarization dynamics in spin‐VCSELs with integrated surface grating for high birefringence splitting
M. Lindemann, N. Jung, N.C. Gerhardt, M.R. Hofmann, N. Manrique‐Nieto, T. Pusch, R. Michalzik, Electronics Letters 59 (2023).
Coupled Aperture VCSELs Suitable for 100 GHz Intensity Modulation
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, N. Ledentsov, V.A. Shchukin, N.N. Ledentsov, O.Yu. Makarov, L. Chorchos, J.P. Turkiewicz, in: 2023 23rd International Conference on Transparent Optical Networks (ICTON), 2023.
Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities
N. Heermeier, T. Heuser, J. Große, N. Jung, A. Kaganskiy, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, S. Reitzenstein, Laser & Photonics Reviews 16 (2022).
LoRa-based Demand-side Load Monitoring and Management System for Microgrids in Africa
I. Mwammenywa, G.M. Kagarura, D. Petrov, P. Holle, U. Hilleringmann, in: 2021 International Conference on Electrical, Computer and Energy Technologies (ICECET), IEEE, 2022.
Spin lasing in high-beta bimodal quantum dot micropillar cavities
N. Heermeier, N. Jung, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Heuser, J. Große, A. Kaganskiy, S. Reitzenstein, in: Spintronics XV, 2022.
Investigation of laser-induced periodic surface structures using synthetic optical holography
E.L. Gurevich, M.R. Hofmann, N.C. Gerhardt, K. Neutsch, Nanomaterials 13 (2022).
Low-cost Sensor System for on-the-field Water Quality Analysis
D. Petrov, K.-F. Taron, U. Hilleringmann, T.-H. Joubert, in: 2021 Smart Systems Integration (SSI), IEEE, 2021.
Local Power Control using Wireless Sensor System for Microgrids in Africa
U. Hilleringmann, D. Petrov, I. Mwammenywa, G.M. Kagarura, in: 2021 IEEE AFRICON, IEEE, 2021.
Microcontroller Firmware Design for Industrial Wireless Sensors
D. Petrov, K. Kroschewski, U. Hilleringmann, in: 2021 Smart Systems Integration (SSI), IEEE, 2021.
Low-Power Primary Cell with Water-Based Electrolyte for Powering of Wireless Sensors
D. Petrov, U. Hilleringmann, Advances in Science, Technology and Engineering Systems Journal 6 (2021) 267–272.
Low-Cost NB-IoT Microgrid Power Quality Monitoring System
D. Petrov, K. Kroschewski, I. Mwammenywa, G.M. Kagarura, U. Hilleringmann, in: 2021 IEEE Sensors, IEEE, 2021.
Time-resolved photoluminescence characterization of InGaAs/GaAs nano-ridges monolithically grown on 300 mm Si substrates
Y. Shi, L.C. Kreuzer, N.C. Gerhardt, M. Pantouvaki, J. Van Campenhout, M. Baryshnikova, R. Langer, D. Van Thourhout, B. Kunert, Journal of Applied Physics 127 (2020).
Spin-lasers: spintronics beyond magnetoresistance
I. Žutić, G. Xu, M. Lindemann, P.E. Faria Junior, J. Lee, V. Labinac, K. Stojšić, G.M. Sipahi, M.R. Hofmann, N.C. Gerhardt, Solid State Communications 316–317 (2020).
Confocal laser scanning holographic microscopy of buried structures
L. Schnitzler, K. Neutsch, F. Schellenberg, M.R. Hofmann, N.C. Gerhardt, Applied Optics 60 (2020).
Water-based primary cell for powering of wireless sensors
D. Petrov, U. Hilleringmann, in: 2020 IEEE SENSORS, IEEE, 2020.
Doctor blade system for the deposition of thin semiconducting films
D. Petrov, T. Meyers, J. Reker, U. Hilleringmann, in: M. du Plessis (Ed.), Fifth Conference on Sensors, MEMS, and Electro-Optic Systems, SPIE, 2019.
Wireless power supply for a RFID based sensor platform
M. Schmidt, D. Petrov, C. Hedayat, U. Hilleringmann, T. Otto, in: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, 2019, pp. 1–4.
RFID based sensor platform for industry 4.0 application
D. Petrov, M. Schmidt, U. Hilleringmann, C. Hedayat, T. Otto, in: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, 2019, pp. 1–4.
Three-dimensional particle localization with common-path digital holographic microscopy
K. Neutsch, M.R. Hofmann, N.C. Gerhardt, L. Schnitzler, M.J. Tranelis, in: Practical Holography XXXIII: Displays, Materials, and Applications, 2019.
Semiconductor spin-lasers
N.C. Gerhardt, I. Žutić, J. Lee, C. Gøthgen, J. Farla, Paulo E., G. Xu, G.M. Sipahi, in: Nanoscale Spintronics and Applications, 2019, pp. 499–540.
Ultrafast spin-lasers
M. Lindemann, G. Xu, T. Pusch, R. Michalzik, M.R. Hofmann, I. Žutić, N.C. Gerhardt, Nature 568 (2019) 212–215.
Brain tissue analysis using texture features based on optical coherence tomography images
M.R. Hofmann, M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, C. Dillmann, H. Welp, in: Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXII, 2018.
Classification of brain tissue with optical coherence tomography by employing texture analysis
M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, M.R. Hofmann, C. Dillmann, H. Welp, in: Optics, Photonics, and Digital Technologies for Imaging Applications V, 2018.
Digital holography for the investigation of buried structures with a common-path reflection microscope
M.R. Hofmann, N.C. Gerhardt, M. Finkeldey, L. Göring, in: Practical Holography XXXII: Displays, Materials, and Applications, 2018.
Thermally-induced birefringence in VCSELs - approaching the limits
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, S. Scherübl, in: Semiconductor Lasers and Laser Dynamics VIII, 2018.
Demonstrating ultrafast polarization dynamics in spin-VCSELs
M. Lindemann, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XXII, 2018.
Spin lasers for optical data communication
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, R. Michalzik, T. Pusch, in: Semiconductor Lasers and Laser Dynamics VIII, 2018.
Electrical birefringence tuning of VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, R. Michalzik, T. Pusch, in: Vertical-Cavity Surface-Emitting Lasers XXII, 2018.
Common-path digital holographic microscopy for 3D nanoparticle localization
N.C. Gerhardt, K. Neutsch, L. Göring, in: Nanoimaging and Nanospectroscopy VI, 2018.
Automated differentiation between meningioma and healthy brain tissue based on optical coherence tomography ex vivo images using texture features
M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, C. Dillmann, R. Stroop, H. Welp, Journal of Biomedical Optics 23 (2018) 071205.
A direct-view customer-oriented digital holographic camera
V. Besaga, N.C. Gerhardt, M.R. Hofmann, P.P. Maksimyak, in: Thirteenth International Conference on Correlation Optics, 2018.
Tunable polarization oscillations in resonantly pumped spin-VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2017), 2017, p. 109.
Spectroscopic optical coherence tomography for ex vivo brain tumor analysis
M. Lenz, R. Krug, A. Gerling, K. Schmieder, M. Hofmann, N.C. Gerhardt, C. Dillmann, H. Welp, in: Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XV, 2017.
Multimodal backside imaging of a microcontroller using confocal laser scanning and optical-beam-induced current imaging
M. Finkeldey, L. Göring, F. Schellenberg, C. Brenner, N.C. Gerhardt, M.R. Hofmann, in: Photonic Instrumentation Engineering IV, 2017.
Optical metrology for the investigation of buried technical structures
M. Finkeldey, F. Schellenberg, C. Brenner, M.R. Hofmann, N.C. Gerhardt, L. Göring, Technisches Messen 85 (2017) 104–110.
Linking transducer transfer function with multi-pulse excitation photoacoustic response
M.N. Cherkashin, C. Brenner, W.D. Putro, B. Döpke, N.C. Gerhardt, M.R. Hofmann, in: Medical Imaging 2017: Ultrasonic Imaging and Tomography, 2017.
Nondestructive evaluation of protective coatings for the conservation of industrial monuments
M. Lenz, N.C. Gerhardt, M. Prange, M.R. Hofmann, C. Mazzon, C. Dillmann, H. Welp, in: Optics for Arts, Architecture, and Archaeology VI, 2017.
Lensless digital holographic microscope using in-line configuration and laser diode illumination
L. Göring, M. Finkeldey, A. Adinda-Ougba, N.C. Gerhardt, M. Hofmann, in: Practical Holography XXXI: Materials and Applications, 2017.
Spectral domain optical coherence tomography for non-destructive testing of protection coatings on metal substrates
M. Lenz, N.C. Gerhardt, M. Hofmann, C. Mazzon, C. Dillmann, H. Welp, M. Prange, Applied Sciences 7 (2017).
Monolithic vertical-cavity surface-emitting laser with thermally tunable birefringence
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, E. La Tona, Applied Physics Letters 110 (2017).
Dynamics of the photoacoustic response of single-element PZT transducers to pulse burst excitation
M.N. Cherkashin, C. Brenner, W.D. Putro, B. Döpke, N.C. Gerhardt, M.R. Hofmann, in: Photons Plus Ultrasound: Imaging and Sensing 2017, 2017.
Depth-filtering in common-path digital holographic microscopy
M. Finkeldey, L. Göring, C. Brenner, M. Hofmann, N.C. Gerhardt, Optics Express 25 (2017) 19398–19407.
Backside imaging of a microcontroller with common-path digital holography
M. Finkeldey, F. Schellenberg, N.C. Gerhardt, M. Hofmann, L. Göring, in: Practical Holography XXXI: Materials and Applications, 2017.
Investigations on polarization oscillation amplitudes in spin-VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XXI, 2017.
Common-path holographic objective for conventional photographic camera
V. Besaga, N.C. Gerhardt, M.R. Hofmann, P.P. Maksimyak, in: Novel Optical Systems Design and Optimization XX, 2017.
High-frequency polarization dynamics in spin-lasers - pushing the limits
M. Lindemann, M.R. Hofmann, N.C. Gerhardt, T. Pusch, R. Michalzik, in: Spintronics X, 2017.
Thermally induced birefringence tuning of 37 GHz in VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, E. La Tona, R. Michalzik, 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2017) 1 (2017) 108.
Digital holographic microscopy of buried specimen using a common-path reflective setup
M. Finkeldey, C. Brenner, N.C. Gerhardt, M.R. Hofmann, L. Göring, DGaO-Proceedings 118 (2017).
Frequency tuning of polarization oscillations: Toward high-speed spin-lasers
M. Lindemann, T. Pusch, R. Michalzik, N.C. Gerhardt, M.R. Hofmann, Applied Physics Letters 108 (2016).
Large laser spots and fault sensitivity analysis
F. Schellenberg, M. Finkeldey, N.C. Gerhardt, M.R. Hofmann, A. Moradi, C. Paar, (2016).
Local binary patterns for differentiation of brain tissue types inoptical coherence tomography images
M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, M. Hofmann, C. Dillmann, H. Welp, Biomedical Engineering 61 (2016).
Large laser spots and fault sensitivity analysis
F. Schellenberg, M. Finkeldey, N.C. Gerhardt, M.R. Hofmann, A. Moradi, C. Paar, in: 2016 IEEE International Symposium on Hardware Oriented Security and Trust (HOST 2016), 2016, pp. 203–208.
Common-path depth-filtered digital holography for high resolution imaging of buried semiconductor structures
M. Finkeldey, F. Schellenberg, N.C. Gerhardt, C. Paar, M. Hofmann, in: Practical Holography XXX: Materials and Applications, 2016.
Influence of birefringence splitting on ultrafast polarization oscillations in VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XX, 2016.
Microscopic description of a spin laser
N.C. Gerhardt, Jr. Faria, Paulo E., G. Xu, J. Lee, G.M. Sipahi, I. Žutić, in: APS March Meeting 2016, 2016.
Frequency tuning of polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers
M. Lindemann, M.R. Hofmann, N.C. Gerhardt, T. Pusch, R. Michalzik, in: Semiconductor Lasers and Laser Dynamics VII, 2016.
Birefringent vertical cavity surface-emitting lasers - toward high-speed spin-lasers
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Semiconductor Lasers and Laser Dynamics VII, 2016.
Dynamics of double-pulse photoacoustic excitation
C. Brenner, L. Göring, B. Döpke, M.N. Cherkashin, N.C. Gerhardt, M.R. Hofmann, in: Photons Plus Ultrasound: Imaging and Sensing 2016, 2016.
Common-path digital holography microscopy of buried semiconductor specimen
L. Göring, M. Finkeldey, N.C. Gerhardt, M.R. Hofmann, Adaptive Optics: Analysis, Methods & Systems (2016).
Birefringence tuning of VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, M. Bou Sanayeh, R. Michalzik, T. Pusch, in: Semiconductor Lasers and Laser Dynamics VII, 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Goring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Goring, in: 2016.
On the complexity reduction of laser fault injection campaigns using OBIC measurements
F. Schellenberg, M. Finkeldey, B. Richter, N.C. Gerhardt, M. Hofmann, C. Paar, M. Schapers, in: 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography - FDTC 2015, 2016, pp. 14–27.
High-frequency operation of spin vertical-cavity surface-emitting lasers - towards 100 GHz
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Spintronics IX, 2016.
Frequency tuning of polarization oscillations in spin-lasers
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, Spintronics IX (2016).
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Go, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Toward high-frequency operation of spin lasers
P.E. Faria Junior, G. Xu, J. Lee, N.C. Gerhardt, G.M. Sipahi, I. Žutić, Physical Review B 92 (2015).
Toward high-frequency operation of spin lasers
P.E. Faria Junior, G. Xu, J. Lee, N.C. Gerhardt, G.M. Sipahi, I. Žutić, Physical Review B 92 (2015).
Tuning the frequency of polarization oscillations in spin VCSELs by mechanical strain induction in GHz-range
M. Lindemann, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, in: The European Conference on Lasers and Electro-Optics 2015, 2015.
Increasing the birefringence of VCSELs beyond 250 GHz
M. Lindemann, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, in: The European Conference on Lasers and Electro-Optics 2015, 2015.
On the complexity reduction of laser fault injection campaigns using OBIC measurements
F. Schellenberg, M. Finkeldey, B. Richter, N.C. Gerhardt, M.R. Hofmann, C. Paar, M. Schäpers, (2015).
Simple concept for a wide-field lensless digital holographic microscope using a laser diode
A. Adinda-Ougba, N. Koukourakis, N.C. Gerhardt, M. Hofmann, Current Directions in Biomedical Engineering 1 (2015) 261–264.
Laser-diode-based photoacoustic setup to analyze Grüneisen relaxation-effect induced signal enhancement
M.N. Cherkashin, C. Brenner, L. Schnitzler, B. Döpke, N.C. Gerhardt, M. Hofmann, in: Opto-Acoustic Methods and Applications in Biophotonics II, 2015.
Ultrafast polarization dynamics with controlled polarization oscillations in vertical-cavity surface-emitting lasers
M. Lindemann, H. Höpfner, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XIX, 2015, pp. 1–7.
Towards high frequency operation of polarization oscillations in spin vertical-cavity surface-emitting lasers
M. Lindemann, H. Höpfner, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Spintronics VIII, 2015.
Controlling the frequency of ultra-fast polarization oscillations in Spin-VCSELs
M. Lindemann, H. Höpfner, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, 79. Jahrestagung Der DPG Und DPG-Frühjahrstagung (2015).
Tuning the frequency of polarization oscillations in spin-VCSELs by mechanical strain induction
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: 2015.
Increasing the birefringence of VCSELs beyond 250 GHz
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: 2015.
Compact low-cost lensless digital holographic microscope for topographic measurements of microstructures in reflection geometry
A. Adinda-Ougba, N. Koukourakis, F. Mitschker, N.C. Gerhardt, M. Hofmann, B. Kabir, in: Optical Systems Design 2015, 2015, pp. 1–8.
Show all publications
Publications
VCSELs: Influence of Design on Performance and Data Transmission over Multi-Mode and Single-Mode Fibers
N.N. Ledentsov, N. Ledentsov, V.A. Shchukin, A.N. Ledentsov, O.Yu. Makarov, I.E. Titkov, M. Lindemann, T. de Adelsburg Ettmayer, N.C. Gerhardt, M.R. Hofmann, X. Chen, J.E. Hurley, H. Dong, M.-J. Li, Photonics 12 (2025).
Multimode vertical-cavity surface-emitting lasers under spin injection
U. Diiankova, M. Drong, T. Pusch, R. Michalzik, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, APL Photonics 10 (2025).
Laterally coupled vertical-cavity surface-emitting lasers with tunable resonance width and frequency
M. Lindemann, M. D’Alessandro, N. Ledentsov, O.Y. Makarov, N.N. Ledentsov, A. Tibaldi, N.C. Gerhardt, M.R. Hofmann, Journal of Applied Physics 138 (2025).
Quantitative holography for the characterisation of semiconductor amplifieres and lasers
N.C. Gerhardt, M.R. Hofmann, L. Zens, J. Möller, V. Besaga, in: Practical Holography XXXIX: Displays, Materials, and Applications, 2025.
Laterally coupled vertical-cavity surface-emitting lasers with tunable resonance width and frequency
M. Lindemann, M. D’Alessandro, N. Ledentsov, O.Y. Makarov, N.N. Ledentsov, A. Tibaldi, N.C. Gerhardt, M.R. Hofmann, Journal of Applied Physics 138 (2025).
Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M. Hofmann, Optics Express (2024).
Controlling the helicity of light by electrical magnetization switching
M. Lindemann, N.C. Gerhardt, P.A. Dainone, P. Renucci, A. Bouché, M. Morassi, X. Devaux, J.-M. George, H. Jaffrès, A. Lemaitre, B. Xu, M. Stoffel, T. Chen, L. Lombez, D. Lagarde, G. Cong, T. Ma, P. Pigeat, M. Vergnat, H. Rinnert, X. Marie, X. Han, S. Mangin, J.-C. Rojas-Sánchez, J.-P. Wang, M.C. Beard, I. Žutić, N. Figueiredo Prestes, Y. Lu, Nature 627 (2024) 783–788.
Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M. Hofmann, Optics Express (2024).
A low cost weather monitoring, PV and prediction system in East Africa
G.M. Kagarura, U. Hilleringmann, D. Petrov, in: 2023 IEEE International Conferences on Internet of Things (IThings) and IEEE Green Computing &Amp; Communications (GreenCom) and IEEE Cyber, Physical &Amp; Social Computing (CPSCom) and IEEE Smart Data (SmartData) and IEEE Congress on Cybermatics (Cybermatics), IEEE, 2024.
Study of Electrically Excited Photon-Photon Resonances in Self-Injection-Locked Coupled-Cavity VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, N.N. Ledentsov, V.A. Shchukin, O.Y. Makarov, V. Zerova, M. D’alessandro, A. Tibaldi, J.P. Turkiewicz, in: 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), 2024.
Holographic measurement of gain and linewidth enhancement factor in semiconductor waveguides
L. Zens, V. Besaga, J. Möller, N.C. Gerhardt, M.R. Hofmann, Optics Express 33 (2024) 34–49.
Controlling the helicity of light by electrical magnetization switching
P.A. Dainone, N.F. Prestes, P. Renucci, A. Bouché, M. Morassi, X. Devaux, M. Lindemann, J.-M. George, H. Jaffrès, A. Lemaitre, B. Xu, M. Stoffel, T. Chen, L. Lombez, D. Lagarde, G. Cong, T. Ma, P. Pigeat, M. Vergnat, H. Rinnert, X. Marie, X. Han, S. Mangin, J.-C. Rojas-Sánchez, J.-P. Wang, M.C. Beard, N.C. Gerhardt, I. Žutić, Y. Lu, Nature 627 (2024) 783–788.
Analysis of laterally-coupled-cavity VCSELs for ultra-high-frequency photon-photon resonance modulation
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, N. Ledentsov, N.N. Ledentsov, V.A. Shchukin, Ł. Chorchos, O.Y. Makarov, J.R. Kropp, I.E. Titkov, V.P. Kalosha, V. Zerova, M. D’Alessandro, V. Torrelli, A. Tibaldi, P. Debernardi, in: Vertical-Cavity Surface-Emitting Lasers XXVIII, 2024.
Study of Electrically Excited Photon-Photon Resonances in Self-Injection-Locked Coupled-Cavity VCSELs
M. (ORCiD: 0000-0002-2660-3497) Lindemann, N.C. (ORCiD: 0009-0002-5538-231X) Gerhardt, M.R. (ORCiD: 0000-0003-1265-0003) Hofmann, V.A. Shchukin, N.N. Ledentsov, O.Y. Makarov, V. Zerova, M. D’Alessandro, A. Tibaldi, J.P. Turkiewicz, (2024).
LoRa Transceiver for Load Monitoring and Control System in Microgrids
I. Mwammenywa, D. Petrov, P. Holle, U. Hilleringmann, in: 2022 International Conference on Engineering and Emerging Technologies (ICEET), IEEE, 2023.
Polarization dynamics in spin‐VCSELs with integrated surface grating for high birefringence splitting
M. Lindemann, N. Jung, N.C. Gerhardt, M.R. Hofmann, N. Manrique‐Nieto, T. Pusch, R. Michalzik, Electronics Letters 59 (2023).
Coupled Aperture VCSELs Suitable for 100 GHz Intensity Modulation
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, N. Ledentsov, V.A. Shchukin, N.N. Ledentsov, O.Yu. Makarov, L. Chorchos, J.P. Turkiewicz, in: 2023 23rd International Conference on Transparent Optical Networks (ICTON), 2023.
Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities
N. Heermeier, T. Heuser, J. Große, N. Jung, A. Kaganskiy, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, S. Reitzenstein, Laser & Photonics Reviews 16 (2022).
LoRa-based Demand-side Load Monitoring and Management System for Microgrids in Africa
I. Mwammenywa, G.M. Kagarura, D. Petrov, P. Holle, U. Hilleringmann, in: 2021 International Conference on Electrical, Computer and Energy Technologies (ICECET), IEEE, 2022.
Spin lasing in high-beta bimodal quantum dot micropillar cavities
N. Heermeier, N. Jung, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Heuser, J. Große, A. Kaganskiy, S. Reitzenstein, in: Spintronics XV, 2022.
Investigation of laser-induced periodic surface structures using synthetic optical holography
E.L. Gurevich, M.R. Hofmann, N.C. Gerhardt, K. Neutsch, Nanomaterials 13 (2022).
Low-cost Sensor System for on-the-field Water Quality Analysis
D. Petrov, K.-F. Taron, U. Hilleringmann, T.-H. Joubert, in: 2021 Smart Systems Integration (SSI), IEEE, 2021.
Local Power Control using Wireless Sensor System for Microgrids in Africa
U. Hilleringmann, D. Petrov, I. Mwammenywa, G.M. Kagarura, in: 2021 IEEE AFRICON, IEEE, 2021.
Microcontroller Firmware Design for Industrial Wireless Sensors
D. Petrov, K. Kroschewski, U. Hilleringmann, in: 2021 Smart Systems Integration (SSI), IEEE, 2021.
Low-Power Primary Cell with Water-Based Electrolyte for Powering of Wireless Sensors
D. Petrov, U. Hilleringmann, Advances in Science, Technology and Engineering Systems Journal 6 (2021) 267–272.
Low-Cost NB-IoT Microgrid Power Quality Monitoring System
D. Petrov, K. Kroschewski, I. Mwammenywa, G.M. Kagarura, U. Hilleringmann, in: 2021 IEEE Sensors, IEEE, 2021.
Time-resolved photoluminescence characterization of InGaAs/GaAs nano-ridges monolithically grown on 300 mm Si substrates
Y. Shi, L.C. Kreuzer, N.C. Gerhardt, M. Pantouvaki, J. Van Campenhout, M. Baryshnikova, R. Langer, D. Van Thourhout, B. Kunert, Journal of Applied Physics 127 (2020).
Spin-lasers: spintronics beyond magnetoresistance
I. Žutić, G. Xu, M. Lindemann, P.E. Faria Junior, J. Lee, V. Labinac, K. Stojšić, G.M. Sipahi, M.R. Hofmann, N.C. Gerhardt, Solid State Communications 316–317 (2020).
Confocal laser scanning holographic microscopy of buried structures
L. Schnitzler, K. Neutsch, F. Schellenberg, M.R. Hofmann, N.C. Gerhardt, Applied Optics 60 (2020).
Water-based primary cell for powering of wireless sensors
D. Petrov, U. Hilleringmann, in: 2020 IEEE SENSORS, IEEE, 2020.
Doctor blade system for the deposition of thin semiconducting films
D. Petrov, T. Meyers, J. Reker, U. Hilleringmann, in: M. du Plessis (Ed.), Fifth Conference on Sensors, MEMS, and Electro-Optic Systems, SPIE, 2019.
Wireless power supply for a RFID based sensor platform
M. Schmidt, D. Petrov, C. Hedayat, U. Hilleringmann, T. Otto, in: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, 2019, pp. 1–4.
RFID based sensor platform for industry 4.0 application
D. Petrov, M. Schmidt, U. Hilleringmann, C. Hedayat, T. Otto, in: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, 2019, pp. 1–4.
Three-dimensional particle localization with common-path digital holographic microscopy
K. Neutsch, M.R. Hofmann, N.C. Gerhardt, L. Schnitzler, M.J. Tranelis, in: Practical Holography XXXIII: Displays, Materials, and Applications, 2019.
Semiconductor spin-lasers
N.C. Gerhardt, I. Žutić, J. Lee, C. Gøthgen, J. Farla, Paulo E., G. Xu, G.M. Sipahi, in: Nanoscale Spintronics and Applications, 2019, pp. 499–540.
Ultrafast spin-lasers
M. Lindemann, G. Xu, T. Pusch, R. Michalzik, M.R. Hofmann, I. Žutić, N.C. Gerhardt, Nature 568 (2019) 212–215.
Brain tissue analysis using texture features based on optical coherence tomography images
M.R. Hofmann, M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, C. Dillmann, H. Welp, in: Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXII, 2018.
Classification of brain tissue with optical coherence tomography by employing texture analysis
M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, M.R. Hofmann, C. Dillmann, H. Welp, in: Optics, Photonics, and Digital Technologies for Imaging Applications V, 2018.
Digital holography for the investigation of buried structures with a common-path reflection microscope
M.R. Hofmann, N.C. Gerhardt, M. Finkeldey, L. Göring, in: Practical Holography XXXII: Displays, Materials, and Applications, 2018.
Thermally-induced birefringence in VCSELs - approaching the limits
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, S. Scherübl, in: Semiconductor Lasers and Laser Dynamics VIII, 2018.
Demonstrating ultrafast polarization dynamics in spin-VCSELs
M. Lindemann, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XXII, 2018.
Spin lasers for optical data communication
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, R. Michalzik, T. Pusch, in: Semiconductor Lasers and Laser Dynamics VIII, 2018.
Electrical birefringence tuning of VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, R. Michalzik, T. Pusch, in: Vertical-Cavity Surface-Emitting Lasers XXII, 2018.
Common-path digital holographic microscopy for 3D nanoparticle localization
N.C. Gerhardt, K. Neutsch, L. Göring, in: Nanoimaging and Nanospectroscopy VI, 2018.
Automated differentiation between meningioma and healthy brain tissue based on optical coherence tomography ex vivo images using texture features
M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, C. Dillmann, R. Stroop, H. Welp, Journal of Biomedical Optics 23 (2018) 071205.
A direct-view customer-oriented digital holographic camera
V. Besaga, N.C. Gerhardt, M.R. Hofmann, P.P. Maksimyak, in: Thirteenth International Conference on Correlation Optics, 2018.
Tunable polarization oscillations in resonantly pumped spin-VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2017), 2017, p. 109.
Spectroscopic optical coherence tomography for ex vivo brain tumor analysis
M. Lenz, R. Krug, A. Gerling, K. Schmieder, M. Hofmann, N.C. Gerhardt, C. Dillmann, H. Welp, in: Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XV, 2017.
Multimodal backside imaging of a microcontroller using confocal laser scanning and optical-beam-induced current imaging
M. Finkeldey, L. Göring, F. Schellenberg, C. Brenner, N.C. Gerhardt, M.R. Hofmann, in: Photonic Instrumentation Engineering IV, 2017.
Optical metrology for the investigation of buried technical structures
M. Finkeldey, F. Schellenberg, C. Brenner, M.R. Hofmann, N.C. Gerhardt, L. Göring, Technisches Messen 85 (2017) 104–110.
Linking transducer transfer function with multi-pulse excitation photoacoustic response
M.N. Cherkashin, C. Brenner, W.D. Putro, B. Döpke, N.C. Gerhardt, M.R. Hofmann, in: Medical Imaging 2017: Ultrasonic Imaging and Tomography, 2017.
Nondestructive evaluation of protective coatings for the conservation of industrial monuments
M. Lenz, N.C. Gerhardt, M. Prange, M.R. Hofmann, C. Mazzon, C. Dillmann, H. Welp, in: Optics for Arts, Architecture, and Archaeology VI, 2017.
Lensless digital holographic microscope using in-line configuration and laser diode illumination
L. Göring, M. Finkeldey, A. Adinda-Ougba, N.C. Gerhardt, M. Hofmann, in: Practical Holography XXXI: Materials and Applications, 2017.
Spectral domain optical coherence tomography for non-destructive testing of protection coatings on metal substrates
M. Lenz, N.C. Gerhardt, M. Hofmann, C. Mazzon, C. Dillmann, H. Welp, M. Prange, Applied Sciences 7 (2017).
Monolithic vertical-cavity surface-emitting laser with thermally tunable birefringence
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, E. La Tona, Applied Physics Letters 110 (2017).
Dynamics of the photoacoustic response of single-element PZT transducers to pulse burst excitation
M.N. Cherkashin, C. Brenner, W.D. Putro, B. Döpke, N.C. Gerhardt, M.R. Hofmann, in: Photons Plus Ultrasound: Imaging and Sensing 2017, 2017.
Depth-filtering in common-path digital holographic microscopy
M. Finkeldey, L. Göring, C. Brenner, M. Hofmann, N.C. Gerhardt, Optics Express 25 (2017) 19398–19407.
Backside imaging of a microcontroller with common-path digital holography
M. Finkeldey, F. Schellenberg, N.C. Gerhardt, M. Hofmann, L. Göring, in: Practical Holography XXXI: Materials and Applications, 2017.
Investigations on polarization oscillation amplitudes in spin-VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XXI, 2017.
Common-path holographic objective for conventional photographic camera
V. Besaga, N.C. Gerhardt, M.R. Hofmann, P.P. Maksimyak, in: Novel Optical Systems Design and Optimization XX, 2017.
High-frequency polarization dynamics in spin-lasers - pushing the limits
M. Lindemann, M.R. Hofmann, N.C. Gerhardt, T. Pusch, R. Michalzik, in: Spintronics X, 2017.
Thermally induced birefringence tuning of 37 GHz in VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, E. La Tona, R. Michalzik, 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC 2017) 1 (2017) 108.
Digital holographic microscopy of buried specimen using a common-path reflective setup
M. Finkeldey, C. Brenner, N.C. Gerhardt, M.R. Hofmann, L. Göring, DGaO-Proceedings 118 (2017).
Frequency tuning of polarization oscillations: Toward high-speed spin-lasers
M. Lindemann, T. Pusch, R. Michalzik, N.C. Gerhardt, M.R. Hofmann, Applied Physics Letters 108 (2016).
Large laser spots and fault sensitivity analysis
F. Schellenberg, M. Finkeldey, N.C. Gerhardt, M.R. Hofmann, A. Moradi, C. Paar, (2016).
Local binary patterns for differentiation of brain tissue types inoptical coherence tomography images
M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, M. Hofmann, C. Dillmann, H. Welp, Biomedical Engineering 61 (2016).
Large laser spots and fault sensitivity analysis
F. Schellenberg, M. Finkeldey, N.C. Gerhardt, M.R. Hofmann, A. Moradi, C. Paar, in: 2016 IEEE International Symposium on Hardware Oriented Security and Trust (HOST 2016), 2016, pp. 203–208.
Common-path depth-filtered digital holography for high resolution imaging of buried semiconductor structures
M. Finkeldey, F. Schellenberg, N.C. Gerhardt, C. Paar, M. Hofmann, in: Practical Holography XXX: Materials and Applications, 2016.
Influence of birefringence splitting on ultrafast polarization oscillations in VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XX, 2016.
Microscopic description of a spin laser
N.C. Gerhardt, Jr. Faria, Paulo E., G. Xu, J. Lee, G.M. Sipahi, I. Žutić, in: APS March Meeting 2016, 2016.
Frequency tuning of polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers
M. Lindemann, M.R. Hofmann, N.C. Gerhardt, T. Pusch, R. Michalzik, in: Semiconductor Lasers and Laser Dynamics VII, 2016.
Birefringent vertical cavity surface-emitting lasers - toward high-speed spin-lasers
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Semiconductor Lasers and Laser Dynamics VII, 2016.
Dynamics of double-pulse photoacoustic excitation
C. Brenner, L. Göring, B. Döpke, M.N. Cherkashin, N.C. Gerhardt, M.R. Hofmann, in: Photons Plus Ultrasound: Imaging and Sensing 2016, 2016.
Common-path digital holography microscopy of buried semiconductor specimen
L. Göring, M. Finkeldey, N.C. Gerhardt, M.R. Hofmann, Adaptive Optics: Analysis, Methods & Systems (2016).
Birefringence tuning of VCSELs
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, M. Bou Sanayeh, R. Michalzik, T. Pusch, in: Semiconductor Lasers and Laser Dynamics VII, 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Goring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Goring, in: 2016.
On the complexity reduction of laser fault injection campaigns using OBIC measurements
F. Schellenberg, M. Finkeldey, B. Richter, N.C. Gerhardt, M. Hofmann, C. Paar, M. Schapers, in: 2015 Workshop on Fault Diagnosis and Tolerance in Cryptography - FDTC 2015, 2016, pp. 14–27.
High-frequency operation of spin vertical-cavity surface-emitting lasers - towards 100 GHz
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Spintronics IX, 2016.
Frequency tuning of polarization oscillations in spin-lasers
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, Spintronics IX (2016).
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Go, in: 2016.
Common-path digital holography microscopy of buried semiconductor specimen
N.C. Gerhardt, M.R. Hofmann, M. Finkeldey, L. Göring, in: 2016.
Toward high-frequency operation of spin lasers
P.E. Faria Junior, G. Xu, J. Lee, N.C. Gerhardt, G.M. Sipahi, I. Žutić, Physical Review B 92 (2015).
Toward high-frequency operation of spin lasers
P.E. Faria Junior, G. Xu, J. Lee, N.C. Gerhardt, G.M. Sipahi, I. Žutić, Physical Review B 92 (2015).
Tuning the frequency of polarization oscillations in spin VCSELs by mechanical strain induction in GHz-range
M. Lindemann, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, in: The European Conference on Lasers and Electro-Optics 2015, 2015.
Increasing the birefringence of VCSELs beyond 250 GHz
M. Lindemann, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, in: The European Conference on Lasers and Electro-Optics 2015, 2015.
On the complexity reduction of laser fault injection campaigns using OBIC measurements
F. Schellenberg, M. Finkeldey, B. Richter, N.C. Gerhardt, M.R. Hofmann, C. Paar, M. Schäpers, (2015).
Simple concept for a wide-field lensless digital holographic microscope using a laser diode
A. Adinda-Ougba, N. Koukourakis, N.C. Gerhardt, M. Hofmann, Current Directions in Biomedical Engineering 1 (2015) 261–264.
Laser-diode-based photoacoustic setup to analyze Grüneisen relaxation-effect induced signal enhancement
M.N. Cherkashin, C. Brenner, L. Schnitzler, B. Döpke, N.C. Gerhardt, M. Hofmann, in: Opto-Acoustic Methods and Applications in Biophotonics II, 2015.
Ultrafast polarization dynamics with controlled polarization oscillations in vertical-cavity surface-emitting lasers
M. Lindemann, H. Höpfner, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Vertical-Cavity Surface-Emitting Lasers XIX, 2015, pp. 1–7.
Towards high frequency operation of polarization oscillations in spin vertical-cavity surface-emitting lasers
M. Lindemann, H. Höpfner, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: Spintronics VIII, 2015.
Controlling the frequency of ultra-fast polarization oscillations in Spin-VCSELs
M. Lindemann, H. Höpfner, N.C. Gerhardt, M. Hofmann, T. Pusch, R. Michalzik, 79. Jahrestagung Der DPG Und DPG-Frühjahrstagung (2015).
Tuning the frequency of polarization oscillations in spin-VCSELs by mechanical strain induction
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: 2015.
Increasing the birefringence of VCSELs beyond 250 GHz
M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, in: 2015.
Compact low-cost lensless digital holographic microscope for topographic measurements of microstructures in reflection geometry
A. Adinda-Ougba, N. Koukourakis, F. Mitschker, N.C. Gerhardt, M. Hofmann, B. Kabir, in: Optical Systems Design 2015, 2015, pp. 1–8.
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