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

 

 

81 Author R. Farshchi , P. Bruski , M. Ramsteiner , J. Herfort , O. Brandt , Y. Manzke , K.-J. Friedland , H.T. Grahn
Title

Multi-channel magnetotransport in Co2FeSi/(Al,Ga)As spin-LEDs

Source Solid State Commun. , 151 , 436 ( 2011 )
2182 Cite : Bibtex RIS
R. Farshchi, P. Bruski, M. Ramsteiner, J. Herfort, O. Brandt, Y. Manzke, K.-J. Friedland, and H.T. Grahn

82 Author S. Ghosh , H.T. Grahn
Title

Importance of strain for green emitters based on (In,Ga)N films of non-polar orientation

Source Phys. Status Solidi B , 248 , 1708 ( 2011 )
2185 Cite : Bibtex RIS
S. Ghosh, and H.T. Grahn

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

Nonlinear transport in quantum-cascade lasers: The role of electric-field domain formation for the laser characteristics

Source J. Appl. Phys. , 109 , 073112 ( 2011 )
Download: PDF | 2187 Cite : Bibtex RIS
M. Wienold, L. Schrottke, M. Giehler, R. Hey, and H.T. Grahn

84 Author R. Farshchi , M. Ramsteiner , J. Herfort , A. Tahraoui , H.T. Grahn
Title

Optical communication of spin information between light emitting diodes

Source Appl. Phys. Lett. , 98 , 162508 ( 2011 )
Download: PDF | 2206 Cite : Bibtex RIS
R. Farshchi, M. Ramsteiner, J. Herfort, A. Tahraoui, and H.T. Grahn

85 Author C. Pfüller , O. Brandt , T. Flissikowski , H.T. Grahn , T. Ive , J. S. Speck , S. P. DenBaars
Title

Comparison of the spectral and temporal emission characteristics of homo- and heteroepitaxial ZnO nanowires

Source Appl. Phys. Lett. , 98 , 113113 ( 2011 )
Download: PDF | 2209 Cite : Bibtex RIS
C. Pfüller, O. Brandt, T. Flissikowski, H.T. Grahn, T. Ive, J. S. Speck, and S. P. DenBaars

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

Wave fronts, pulses and wave trains in photoexcited superlattices behaving as excitable or oscillatory media

Source J. Phys. A: Math. Theor. , 44 , 395003 ( 2011 )
2229 Cite : Bibtex RIS
J. I. Arana, L. L. Bonilla, and H.T. Grahn

87 Author R. Sharma , L. Schrottke , M. Wienold , K. Biermann , R. Hey , H.T. Grahn
Title

Effect of stimulated emission on the transport characteristics of terahertz quantum-cascade lasers

Source Appl. Phys. Lett. , 99 , 151116 ( 2011 )
Download: PDF | 2246 Cite : Bibtex RIS
R. Sharma, L. Schrottke, M. Wienold, K. Biermann, R. Hey, and H.T. Grahn

88 Author R. Eichholz , H. Richter , S. G. Pavlov , M. Wienold , L. Schrottke , R. Hey , H.T. Grahn , H.-W. Hübers
Title

Multi-channel terahertz grating spectrometer with quantum-cascade laser and microbolometer array

Source Appl. Phys. Lett. , 99 , 141112 ( 2011 )
Download: PDF | 2248 Cite : Bibtex RIS
R. Eichholz, H. Richter, S. G. Pavlov, M. Wienold, L. Schrottke, R. Hey, H.T. Grahn, and H.-W. Hübers

89 Author M. Giehler , M. Wienold , L. Schrottke , R. Hey , H.T. Grahn , S. G. Pavlov , H.-W. Hübers , S. Winnerl , H. Schneider
Title

Mid-infrared pump-related electric-field domains in GaAs/(Al,Ga)As quantum-cascade structures for terahertz lasing without population inversion

Source J. Appl. Phys. , 110 , 103104 ( 2011 )
Download: PDF | 2254 Cite : Bibtex RIS
M. Giehler, M. Wienold, L. Schrottke, R. Hey, H.T. Grahn, S. G. Pavlov, H.-W. Hübers, S. Winnerl, and H. Schneider

90 Author C. Rivera , J. Pereiro , A. Navarro , E. Munoz , O. Brandt , H.T. Grahn
Title

Advances in group-III-nitride photo-detectors

Source Open Electr. Electron. Eng. J. , 4 , 1 ( 2010 )
2008 Cite : Bibtex RIS
C. Rivera, J. Pereiro, A. Navarro, E. Munoz, O. Brandt, and H.T. Grahn