PDI -> Staff ->

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: Intersubband emitters , Nanoanalytics , III-V nanowires for optoelectronics

 

 

91 Author L. Schrottke , M. Giehler , M. Wienold , R. Hey , H.T. Grahn
Title

Compact model for the efficient simulation of the optical gain and transport properties in THz quantum-cascade lasers

Source Semicond. Sci. Technol. , 25 , 045025 ( 2010 )
2019 Cite : Bibtex RIS
L. Schrottke, M. Giehler, M. Wienold, R. Hey, and H.T. Grahn

92 Author L. Schrottke , M. Giehler , M. Wienold , R. Hey , H.T. Grahn
Title

Simulation of the interplay between stimulated emission and carrier distribution in quantum-cascade lasers

Source Physica E (Amsterdam) , 42 , 2632 ( 2010 )
2040 Cite : Bibtex RIS
L. Schrottke, M. Giehler, M. Wienold, R. Hey, and H.T. Grahn

93 Author O. Brandt , M. Ramsteiner , T. Flissikowski , J. Herfort , H.T. Grahn
Title

Rate-equation model of spin dynamics and polarized light emission for spin light-emitting diodes

Source Phys. Rev. B , 81 , 115302 ( 2010 )
Download: PDF | 2043 Cite : Bibtex RIS
O. Brandt, M. Ramsteiner, T. Flissikowski, J. Herfort, and H.T. Grahn

94 Author J. I. Arana , L. L. Bonilla , H.T. Grahn
Title

Photo-excited semiconductor superlattices as constrained excitable media: Motion of dipole domains and current self-oscillations

Source Phys. Rev. B , 81 , 035322 ( 2010 )
Download: PDF | 2054 Cite : Bibtex RIS
J. I. Arana, L. L. Bonilla, and H.T. Grahn

95 Author C. Pfüller , O. Brandt , F. Grosse , T. Flissikowski , C. Chèze , V. Consonni , L. Geelhaar , H.T. Grahn , H. Riechert
Title

Unpinning the Fermi level in GaN nanowires by ultraviolet radiation

Source Phys. Rev. B , 82 , 045320 ( 2010 )
Download: PDF | 2075 Cite : Bibtex RIS
C. Pfüller, O. Brandt, F. Grosse, T. Flissikowski, C. Chèze, V. Consonni, L. Geelhaar, H.T. Grahn, and H. Riechert

96 Author H. Richter , M. Greiner-Bär , S. G. Pavlov , A. D. Semenov , M. Wienold , L. Schrottke , M. Giehler , R. Hey , H.T. Grahn , H.-W. Hübers
Title

A compact, continuous-wave terahertz source for imaging and spectroscopy based on a quantum-cascade laser and a miniature cryocooler

Source Opt. Express , 18 , 10177 ( 2010 )
Download: PDF | 2077 Cite : Bibtex RIS
H. Richter, M. Greiner-Bär, S. G. Pavlov, A. D. Semenov, M. Wienold, L. Schrottke, M. Giehler, R. Hey, H.T. Grahn, and H.-W. Hübers

97 Author K. R. Wang , M. Ramsteiner , C. Mauder , Q. Wan , T. Hentschel , H.T. Grahn , H. Kalisch , M. Heuken , R. H. Jansen , A. Trampert
Title

Striated surface morphology and crystal orientation of m-plane GaN films grown by MOVPE on γ-LiAlO2(100)

Source Appl. Phys. Lett. , 96 , 231914 ( 2010 )
Download: PDF | 2097 Cite : Bibtex RIS
K. R. Wang, M. Ramsteiner, C. Mauder, Q. Wan, T. Hentschel, H.T. Grahn, H. Kalisch, M. Heuken, R. H. Jansen, and A. Trampert

98 Author M. Wienold , L. Schrottke , M. Giehler , R. Hey , W. Anders , H.T. Grahn
Title

Low-threshold terahertz quantum-cascade lasers based on GaAs/Al0.25Ga0.75As heterostructures

Source Appl. Phys. Lett. , 97 , 071113 ( 2010 )
Download: PDF | 2107 Cite : Bibtex RIS
M. Wienold, L. Schrottke, M. Giehler, R. Hey, W. Anders, and H.T. Grahn

99 Author C. Pfüller , O. Brandt , T. Flissikowski , C. Chèze , L. Geelhaar , H.T. Grahn , H. Riechert
Title

Statistical analysis of excitonic transitions in single, free-standing GaN nanowires: Probing impurity incorporation in the Poissonian limit

Source Nano Res. , 3 , 881 ( 2010 )
2110 Cite : Bibtex RIS
C. Pfüller, O. Brandt, T. Flissikowski, C. Chèze, L. Geelhaar, H.T. Grahn, and H. Riechert

100 Author H. Richter , M. Greiner-Baer , S. G. Pavlov , A. D. Semenov , M. Wienold , L. Schrottke , M. Giehler , R. Hey , H.T. Grahn , H.-W. Hübers
Title

Toward a compact THz local oscillator based on a quantum-cascade laser

Source Proc. SPIE , 7741 , 774111 ( 2010 )
Download: PDF | 2118 Cite : Bibtex RIS
H. Richter, M. Greiner-Baer, S. G. Pavlov, A. D. Semenov, M. Wienold, L. Schrottke, M. Giehler, R. Hey, H.T. Grahn, and H.-W. Hübers