Intersubband Emitters: GaAs-based Quantum-Cascade Lasers

Prof. Dr. Holger T. Grahn

Head of Department Semiconductor Spectroscopy

Holger T. Grahn

phone: +49 30 20377 318

phone mobile: 602

room: 0517

email: htgrahn@pdi-berlin.de

 

Department: Semiconductor Spectroscopy

Core research areas: Ferromagnet/ semiconductor hybrid structures , Intersubband emitters , III-V nanowires for optoelectronics

 

 

71 Author R. Sharma , L. Schrottke , M. Wienold , K. Biermann , A. Tahraoui , H.T. Grahn
Title

Influence of post-growth rapid thermal annealing on the transport and lasing characteristics of terahertz quantum-cascade lasers

Source J. Phys. D: Appl. Phys. , 46 , 305107 ( 2013 )
2379 Cite : Bibtex RIS
R. Sharma, L. Schrottke, M. Wienold, K. Biermann, A. Tahraoui, and H.T. Grahn

72 Author Y. J. Cho , X. Lue , M. Wienold , M. Ramsteiner , H.T. Grahn , O. Brandt
Title

Auger recombination as the dominant nonradiative recombination channel in InN

Source Phys. Rev. B , 87 , 155203 ( 2013 )
Download: PDF | 2381 Cite : Bibtex RIS
Y. J. Cho, X. Lue, M. Wienold, M. Ramsteiner, H.T. Grahn, and O. Brandt

73 Author O. Brandt , P. Misra , T. Flissikowski , H.T. Grahn
Title

Excitation polarization anisotropy of the spontaneous emission from an M-plane GaN film: Competition between hole relaxation and exciton recombination

Source Phys. Rev. B , 87 , 165308 ( 2013 )
Download: PDF | 2382 Cite : Bibtex RIS
O. Brandt, P. Misra, T. Flissikowski, and H.T. Grahn

74 Author N. Rothbart , H. Richter , M. Wienold , L. Schrottke , H.T. Grahn , H.-W. Hübers
Title

Fast 2D and 3D terahertz imaging with a quantum-cascade laser and a scanning mirror

Source IEEE Trans. Terahertz Sci. Technol. , 3 , 617 ( 2013 )
2398 Cite : Bibtex RIS
N. Rothbart, H. Richter, M. Wienold, L. Schrottke, H.T. Grahn, and H.-W. Hübers

75 Author O. Krüger , S. Kreutzmann , D. Prasai , M. Wienold , R. Sharma , W. Pittroff , L. Weixelbaum , W. John , K. Biermann , L. Schrottke , F. Schnieder , G. Erbert , H.T. Grahn , G. Tränkle
Title

Epitaxial-side mounting of terahertz quantum-cascade lasers for improved heat management

Source IEEE Photon. Technol. Lett. , 25 , 1570 ( 2013 )
2402 Cite : Bibtex RIS
O. Krüger, S. Kreutzmann, D. Prasai, M. Wienold, R. Sharma, W. Pittroff, L. Weixelbaum, W. John, K. Biermann, L. Schrottke, F. Schnieder, G. Erbert, H.T. Grahn, and G. Tränkle

76 Author Y. Y. Huang , W. Li , W. Q. Ma , H. Qin , H.T. Grahn , Y. H. Zhang
Title

Spontaneous quasi-periodic current self-oscillations in a weakly coupled GaAs/(Al,Ga)As superlattice at room temperature

Source Appl. Phys. Lett. , 102 , 242107 ( 2013 )
Download: PDF | 2414 Cite : Bibtex RIS
Y. Y. Huang, W. Li, W. Q. Ma, H. Qin, H.T. Grahn, and Y. H. Zhang

77 Author W.-H. Lin , W. Jahn , H.T. Grahn , L. W. Chang, , M. M. C. Chou , J.-J. Wu
Title

Spectral and spatial luminescence distribution of m-plane ZnO epitaxial films containing stacking faults: A cathodoluminescence study

Source Appl. Phys. Express , 6 , 061101 ( 2013 )
2417 Cite : Bibtex RIS
W.-H. Lin, W. Jahn, H.T. Grahn, L. W. Chang,, M. M. C. Chou, and J.-J. Wu

78 Author C. Hauswald , T. Flissikowski , T. Gotschke , R. Calarco , L. Geelhaar , H.T. Grahn , O. Brandt
Title

Coupling of exciton states as the origin of their biexponential decay dynamics in GaN nanowires

Source Phys. Rev. B , 88 , 075312 ( 2013 )
Download: PDF | 2421 Cite : Bibtex RIS
C. Hauswald, T. Flissikowski, T. Gotschke, R. Calarco, L. Geelhaar, H.T. Grahn, and O. Brandt

79 Author M. Wienold , A. Tahraoui , L. Schrottke , R. Sharma , X. Lü , K. Biermann , R. Hey , H.T. Grahn
Title

Lateral distributed-feedback gratings for single-mode, high-power terahertz quantum-cascade lasers

Source Opt. Express , 20 , 11207 ( 2012 )
Download: PDF | 2277 Cite : Bibtex RIS
M. Wienold, A. Tahraoui, L. Schrottke, R. Sharma, X. Lü, K. Biermann, R. Hey, and H.T. Grahn

80 Author Yu. Bomze , R. Hey , H.T. Grahn , S. W. Teitsworth
Title

Noise-induced current switching in semiconductor superlattices: Observation of non-exponential kinetics in a high-dimensional system

Source Phys. Rev. Lett. , 109 , 026801 ( 2012 )
Download: PDF | 2298 Cite : Bibtex RIS
Yu. Bomze, R. Hey, H.T. Grahn, and S. W. Teitsworth

Contact

Prof. Dr. Holger T. Grahn

Head of Department 

+49 30 20377-318

htgrahn@pdi-berlin.de

Dr. Lutz Schrottke

Senior Scientist

+49 30 20377-339

lutz@pdi-berlin.de