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

 

 

221 Author K. J. Luo , S. W. Teitsworth , M. Rogozia , H.T. Grahn , L. L. Bonilla , J. Galan , N. Ohtani
Title

Controllable bifurcation processes in undoped, photoexcited GaAs/AlAs superlattices

Source Proc. ECC 5 , 37 ( 2001 )
646 Cite : Bibtex RIS
K. J. Luo, S. W. Teitsworth, M. Rogozia, H.T. Grahn, L. L. Bonilla, J. Galan, and N. Ohtani

222 Author N. Ohtani , M. Rogozia , C. Domoto , T. Nishimura , H.T. Grahn
Title

Photocurrent self-oscillations in weakly coupled, type-II GaAs/AlAs superlattices embedded in p-i-n and n-i-n diodes

Source Proc. ICPS 25 , 839 ( 2001 )
660 Cite : Bibtex RIS
N. Ohtani, M. Rogozia, C. Domoto, T. Nishimura, and H.T. Grahn

223 Author M. Rogozia , H.T. Grahn
Title

Escape time model for current self-oscillation frequencies in weakly coupled semiconductor superlattices

Source Appl. Phys. A: Mater. Sci. Process. , 73 , 459 ( 2001 )
670 Cite : Bibtex RIS
M. Rogozia, and H.T. Grahn

224 Author M. Rogozia , H.T. Grahn , R. Hey
Title

Current self-oscillations with discrete frequencies in weakly coupled semiconductor superlattices

Source Proc. ICPS 25 , 853 ( 2001 )
671 Cite : Bibtex RIS
M. Rogozia, H.T. Grahn, and R. Hey

225 Author M. Rogozia , S. W. Teitsworth , H.T. Grahn , K. H. Ploog
Title

Statistics of the domain-boundary relocation time in semiconductor superlattices

Source Phys. Rev. B , 64 , 041308(R) ( 2001 )
Download: PDF | 672 Cite : Bibtex RIS
M. Rogozia, S. W. Teitsworth, H.T. Grahn, and K. H. Ploog

226 Author M. Rogozia , P. Krispin , H.T. Grahn
Title

Giant resistance changes in (Al,Ga)As contact layers of GaAs/AlAs superlattices due to deep donors

Source J. Appl. Phys. , 90 , 4560 ( 2001 )
Download: PDF | 673 Cite : Bibtex RIS
M. Rogozia, P. Krispin, and H.T. Grahn

227 Author L. Schrottke , R. Hey , H.T. Grahn
Title

Electric-field-dependent carrier dynamics in an (Al,Ga)As/GaAs double-quantum-well superlattice

Source Proc. ICPS 25 , 635 ( 2001 )
677 Cite : Bibtex RIS
L. Schrottke, R. Hey, and H.T. Grahn

228 Author L. Schrottke , R. Hey , H.T. Grahn
Title

Population properties and carrier dynamics in a GaAs/(Al,Ga)As double-quantum-well superlattice investigated by time-resolved photoluminescence spectroscopy

Source Appl. Phys. Lett. , 79 , 629 ( 2001 )
Download: PDF | 678 Cite : Bibtex RIS
L. Schrottke, R. Hey, and H.T. Grahn

229 Author P. Waltereit , O. Brandt , M. Ramsteiner , A. Trampert , H.T. Grahn , J. Menniger , M. Reiche , K. H. Ploog
Title

M-plane GaN(1|100) grown on γ-LiAlO2(100): nitride semiconductors free of internal electrostatic fields

Source J. Cryst. Growth , 227/228 , 437 ( 2001 )
696 Cite : Bibtex RIS
P. Waltereit, O. Brandt, M. Ramsteiner, A. Trampert, H.T. Grahn, J. Menniger, M. Reiche, and K. H. Ploog

230 Author U. Behn , A. Thamm , O. Brandt , H.T. Grahn
Title

Unpinned behavior of the surface Fermi level of GaN detected by photoreflectance spectroscopy

Source J. Appl. Phys. , 87 , 4315 ( 2000 )
Download: PDF | 715 Cite : Bibtex RIS
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn

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