Walter Schottky Institute
Center for Nanotechnology and Nanomaterials


Ganpath Veerabathran

Ganpath Veerabathran


Room S319
Tel.: (+49) 089 289 11462


Publications

Analysis of GaSb-based vertical cavity surface emitting lasers at Lambda = 3.93 µm
IEEE Photonics conference (IPC), Orlando, Florida, USA (2017)
G. Veerabathran, S. Sprengel, A. Andrejew, M. C. Amann
GaSb-based Electrically-Pumped Vertical Cavity Surface Emitting Lasers for the 3-4 µm Wavelength Range
CLEO: science and Innovations, San Jose, California, USA (2017)
G. Veerabathran, S. Sprengel, A. Andrejew, M. C. Amann
Online Ref
GaSb-based VCSELs emitting at 4 µm using type-II quantum wells
European VCSEL Day 2017, Cardiff, UK (2017)
G. Veerabathran, S. Sprengel, A. Andrejew, M. C. Amann
GaSb-based vertical-cavity surface-emitting lasers at 4 µm using type-II quantum wells
International Nano-Optoelectronics Workshop (iNOW), Tianjin, Qian'an and Chengde, China (2017) Winner of 'Best Poster Award 2017' (First Place) (2017)
G. Veerabathran, S. Sprengel, A. Andrejew, M. C. Amann
Room-temperature vertical-cavity surface-emitting lasers at 4 µm with GaSb-based type-II quantum wells
Applied Physics Letters 110, 71104 (2017)
G. Veerabathran, S. Sprengel, A. Andrejew, M. C. Amann
Online Ref
THz surface emission by difference frequency generation in quantum cascade lasers
42nd International Conference on Infrared, Millimeter, and Terahertz Waves (2017)
F. Demmerle, D. Burghart, W. Oberhausen, A. Wolf, G. K. Veerabathran, J. Krakofsky, H. Schmeiduch, G. Boehm, M. C. Amann
Online Ref
Transient thermal analysis of semiconductor diode lasers under pulsed operation
AIP Advances 7, 25208 (2017)
G. Veerabathran, S. Sprengel, S. Karl, A. Andrejew, H. Schmeiduch, M. C. Amann
Online Ref
Transversely superimposed gratings for narrow far-field terahertz surface emission of nonlinear quantum cascade lasers
Optical Engineering 57, 11007 (2017)
F. Demmerle, W. Oberhausen, D. Burghart, A. Wolf, G. Veerabathran, J. Krakofsky, H. Schmeiduch, G. Boehm, M. C. Amann
Online Ref
Development of highly reflective distributed Bragg reflectors for vertical cavity surface emitting lasers above 2 µm
Semiconductor Integrated Optoelectronics Conference (SIOE), Cardiff, UK (2016)
A. Andrejew, S. Sprengel, G. Veerabathran, M. C. Amann
Transient thermal study of InP-based type-II heterostructure lasers under pulsed operation
Semiconductor Integrated Optoelectronics Conference (SIOE), Cardiff, UK (2016) (2016)
G. Veerabathran, S. Sprengel, S. Karl, M. C. Amann
2.5 µm VCSELs with InP-based type-II quantum wells
VCSEL-Day, European Workshop on VCSELs (oral presentation), Lódz Poland (2015) (2015)
S. Sprengel, A. Andrejew, G. Veerabathran, F. Federer, G. Boehm, M. C. Amann
Online Ref
Continuous wave vertical cavity surface emitting lasers at 2.5 µm with InP-based type-II quantum wells
Applied Physics Letters, Vol. 106, No. 15, pp. 151102 (2015) (2015)
S. Sprengel, A. Andrejew, F. Federer, G. Veerabathran, G. Boehm, M. C. Amann
Electrically pumped mid-infrared VCSELs using type-II quantum wells
European Semiconductor Laser Workshop, Madrid, Spain (2015)
G. Veerabathran, S. Sprengel, A. Andrejew, F. Federer, G. Boehm, M. C. Amann
InP-based type-II heterostructure lasers for up to 2.7 µm wavelength
42st Freiburg Infrared Colloquium, Freiburg, Germany (2015) (2015)
S. Sprengel, G. Veerabathran, A. Köninger, G. Boehm, R. Meyer, M. C. Amann
InP-based type-II heterostructure lasers for wavelengths up to 2.7 µm
Invited talk (2015)
S. Sprengel, G. Veerabathran, A. Andrejew, A. Köninger, G. Boehm, C. Grasse, M. C. Amann
Online Ref
InP-Based Vertical-Cavity Surface-Emitting Lasers with Type-II Quantum Wells
Invited Paper (2015)
S. Sprengel, G. Veerabathran, F. Federer, A. Andrejew, M. C. Amann
Development of active region for type-II GaSb-based lasers
International Nano-Optoelectronics Workshop (iNOW)  Luga and St. Petersburg, Russia (2014) (2014)
G. Veerabathran, S. Sprengel, M. C. Amann
InP-Based Type-II Heterostructure Lasers for 2.5µm Working CW at Room Temperature and Above
24nd IEEE International Semiconductor Laser Conference (ISLC), Palma de Mallorca, Spain(2014) (2014)
S. Sprengel, G. Veerabathran, A. Köninger, F. Federer, G. Boehm, M. C. Amann
Online Ref
InP-based type-II heterostructure lasers for 2.7 µm wavelength
Mid-Infrared Optoelectronics: Materials and Devices MIOMD, Montpellier, France (2014) (2014)
S. Sprengel, G. Veerabathran, A. Köninger, G. Boehm, M. C. Amann
Online Ref
InP-based type-II heterostructure lasers for wavelength above 2 µm
Invited Talk: 2014 IEEE Summer Topicals Meeting Series, Montreal, Canada(2014) (2014)
S. Sprengel, A. Andrejew, G. Veerabathran, F. Federer, G. Boehm, C. Grasse, M. C. Amann
Online Ref
InP-based type-II quantum well lasers for wavelengths above 2 µm
European Semiconductor Laser Workshop, Bristol, UK (2013)
S. Sprengel, G. Veerabathran, F. Federer, A. Andrejew, M. C. Amann





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