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

 

 

11 Author Z. Z. Shao , Z. Z. Yin , H. Song , W. Liu , X. J. Li , J. Zhu , K. Biermann , L. L. Bonilla , H. T. Grahn , Y. H. Zhang
Title

Fast Detection of a Weak Signal by a Stochastic Resonance Induced by a Coherence Resonance in an Excitable GaAs/Al_{0.45}Ga_{0.55}As Superlattice

Source Phys. Rev. Lett. , 121 , 086806 ( 2018 )
DOI : 10.1103/PhysRevLett.121.086806 | Download: PDF | 3064 Cite : Bibtex RIS
Z. Z. Shao, Z. Z. Yin, H. Song, W. Liu, X. J. Li, J. Zhu, K. Biermann, L. L. Bonilla, H. T. Grahn, and Y. H. Zhang

12 Author E. Mompo , M. Ruiz-Garcia , M. Carretero , H. T. Grahn , Y. H. Zhang , L. L. Bonilla
Title

Coherence Resonance and Stochastic Resonance in an Excitable Semiconductor Superlattice

Source Phys. Rev. Lett. , 121 , 086805 ( 2018 )
DOI : 10.1103/PhysRevLett.121.086805 | Download: PDF | 3065 Cite : Bibtex RIS
E. Mompo, M. Ruiz-Garcia, M. Carretero, H. T. Grahn, Y. H. Zhang, and L. L. Bonilla

13 Author Y. H. Zhang , Y. Aviad , H. T. Grahn
Title

Chaotic current self-oscillations in doped, weakly coupled semiconductor superlattices for true random number generation

Source Coupled Mathematical Models for Physical and Nanoscale Systems and their Applications; edited by L. L. Bonilla, E. Kaxiras, and R. Melnik , 232 , 35 ( 2018 )
DOI : 10.1007/978-3-319-76599-0 | 2904 Cite : Bibtex RIS
Y. H. Zhang, Y. Aviad, and H. T. Grahn

14 Author L. Schrottke , X. Lü , B. Röben , K. Biermann , M. Wienold , H. Richter , H.-W. Hübers , H. T. Grahn
Title

Intrinsic frequency tuning of terahertz quantum-cascade lasers

Source J. Appl. Phys. , 123 , 213102 ( 2018 )
DOI : 10.1063/1.5024480 | Download: PDF | 3015 Cite : Bibtex RIS
L. Schrottke, X. Lü, B. Röben, K. Biermann, M. Wienold, H. Richter, H.-W. Hübers, and H. T. Grahn

15 Author J.E. Boschker , X. Lü , V. Bragaglia , R. Wang , H. T. Grahn , R. Calarco
Title

Electrical and optical properties of epitaxial binary and ternary GeTe-Sb2Te3 alloys

Source Sci. Rep. , 8 , 5889 ( 2018 )
DOI : 10.1038/s41598-018-23221-9 | Download: PDF | 3002 Cite : Bibtex RIS
J.E. Boschker, X. Lü, V. Bragaglia, R. Wang, H. T. Grahn, and R. Calarco

16 Author M. Wienold , T. Alam , L. Schrottke , H. T. Grahn , H.-W. Hübers
Title

Doppler-free spectroscopy with a terahertz quantum-cascade laser

Source Opt. Express , 26 , 6692 ( 2018 )
DOI : 10.1364/OE.26.006692 | Download: PDF | 3023 Cite : Bibtex RIS
M. Wienold, T. Alam, L. Schrottke, H. T. Grahn, and H.-W. Hübers

17 Author P. Corfdir , H. Li , O. Marquardt , G. Gao , M. R. Molas , J. K. Zettler , D. van Treeck , T. Flissikowski , M. Potemski , C. Draxl , A. Trampert , S. Fernández-Garrido , H. T. Grahn , O. Brandt
Title

Crystal-phase quantum wires: One-dimensional heterostructures with atomically flat interfaces

Source Nano Lett. , 18 , 247 ( 2018 )
DOI : 10.1021/acs.nanolett.7b03997 | 2978 Cite : Bibtex RIS
P. Corfdir, H. Li, O. Marquardt, G. Gao, M. R. Molas, J. K. Zettler, D. van Treeck, T. Flissikowski, M. Potemski, C. Draxl, A. Trampert, S. Fernández-Garrido, H. T. Grahn, and O. Brandt

18 Author T. Hagelschuer , M. Wienold , H. Richter , L. Schrottke , H. T. Grahn , H.-W. Hübers
Title

Real-time gas sensing based on optical feedback in a terahertz quantum-cascade laser

Source Opt. Express , 25 , 30203 ( 2017 )
DOI : 10.1364/OE.25.030203 | Download: PDF | 2998 Cite : Bibtex RIS
T. Hagelschuer, M. Wienold, H. Richter, L. Schrottke, H. T. Grahn, and H.-W. Hübers

19 Author F. Feix , T. Flissikowski , K. K. Sabelfeld , V. M. Kaganer , M. Wölz , L. Geelhaar , H. T. Grahn , O. Brandt
Title

Ga-Polar (In,Ga)N/GaN Quantum Wells Versus N-Polar (In,Ga)N Quantum Disks in GaN Nanowires: A Comparative Analysis of Carrier Recombination, Diffusion, and Radiative Efficiency

Source Phys. Rev. Appl. , 8 , 014032 ( 2017 )
DOI : 10.1103/PhysRevApplied.8.014032 | Download arXiv: 1703.06715 | 2905 Cite : Bibtex RIS
F. Feix, T. Flissikowski, K. K. Sabelfeld, V. M. Kaganer, M. Wölz, L. Geelhaar, H. T. Grahn, and O. Brandt

20 Author A. Guzman , R. San-Roman , R. Gargallo-Caballero , H. T. Grahn
Title

Laterally biased quantum-well infrared photodetectors operating at room temperature with low dark currents

Source IEEE J. Sel. Topics Quantum Electron. , 24 , 1900206 ( 2017 )
DOI : 10.1109/JSTQE.2017.2703307 | 2953 Cite : Bibtex RIS
A. Guzman, R. San-Roman, R. Gargallo-Caballero, and H. T. Grahn