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

 

 

71 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

72 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

73 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

74 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

75 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

76 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

77 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

78 Author F. Gericke , T. Flissikowski , J. Lähnemann , F. Katmis , W. Braun , H. Riechert , H.T. Grahn
Title

Optical switching and related structural properties of epitaxial Ge2Sb2Te5 films

Source J. Appl. Phys. , 111 , 113524 ( 2012 )
Download: PDF | 2304 Cite : Bibtex RIS
F. Gericke, T. Flissikowski, J. Lähnemann, F. Katmis, W. Braun, H. Riechert, and H.T. Grahn

79 Author A. Gorgis , T. Flissikowski , O. Brandt , C. Chèze , L. Geelhaar , H. Riechert , H.T. Grahn
Title

Time-resolved photoluminescence spectroscopy of individual GaN nanowires

Source Phys. Rev. B , 86 , 041302(R) ( 2012 )
Download: PDF | 2306 Cite : Bibtex RIS
A. Gorgis, T. Flissikowski, O. Brandt, C. Chèze, L. Geelhaar, H. Riechert, and H.T. Grahn

80 Author H. Richter , M. Greiner-Bär , N. Deßmann , J. Pfund , M. Wienold , L. Schrottke , R. Hey , H.T. Grahn , H.-W. Hübers
Title

Terahertz wavefront measurement with a Hartmann sensor

Source Appl. Phys. Lett. , 101 , 031103 ( 2012 )
Download: PDF | 2322 Cite : Bibtex RIS
H. Richter, M. Greiner-Bär, N. Deßmann, J. Pfund, M. Wienold, L. Schrottke, R. Hey, H.T. Grahn, and H.-W. Hübers