Prof. Dr. Holger T. Grahn

Head of Department Semiconductor Spectroscopy

Holger T. Grahn

Telefon: +49 30 20377 318

Tel. mobil: 602

Raum: 0517

Email: htgrahn@pdi-berlin.de

 

Abteilung: Semiconductor Spectroscopy

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

 

 

71 Autor N. Rothbart , H. Richter , M. Wienold , L. Schrottke , H.T. Grahn , H.-W. Hübers
Titel

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 Autor 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
Titel

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 Autor Y. Y. Huang , W. Li , W. Q. Ma , H. Qin , H.T. Grahn , Y. H. Zhang
Titel

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 Autor W.-H. Lin , W. Jahn , H.T. Grahn , L. W. Chang, , M. M. C. Chou , J.-J. Wu
Titel

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 Autor C. Hauswald , T. Flissikowski , T. Gotschke , R. Calarco , L. Geelhaar , H.T. Grahn , O. Brandt
Titel

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 Autor M. Wienold , A. Tahraoui , L. Schrottke , R. Sharma , X. Lü , K. Biermann , R. Hey , H.T. Grahn
Titel

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 Autor Yu. Bomze , R. Hey , H.T. Grahn , S. W. Teitsworth
Titel

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 Autor F. Gericke , T. Flissikowski , J. Lähnemann , F. Katmis , W. Braun , H. Riechert , H.T. Grahn
Titel

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 Autor A. Gorgis , T. Flissikowski , O. Brandt , C. Chèze , L. Geelhaar , H. Riechert , H.T. Grahn
Titel

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

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