Head of Department Semiconductor Spectroscopy
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
21 | 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 | Cite : Bibtex RIS |
22 | Author | B. Röben , X. Lü , M. Hempel , K. Biermann , L. Schrottke , H. T. Grahn |
Title |
Terahertz quantum-cascade lasers as high-power and wideband, gapless sources for spectroscopy |
|
Source | Opt. Express , 25 , 16282 ( 2017 ) | |
DOI : 10.1364/OE.25.016282 | Download: PDF | Cite : Bibtex RIS |
23 | Author | M. Hempel , B. Röben , M. Niehle , L. Schrottke , A. Trampert , H. T. Grahn |
Title |
Continuous tuning of two-section, single-mode terahertz quantum-cascade lasers by fiber-coupled, near-infrared illumination |
|
Source | AIP Adv. , 7 , 055201 ( 2017 ) | |
DOI : 10.1063/1.4983030 | Download: PDF | Cite : Bibtex RIS |
24 | Author | A. Guzman , R. Gargallo-Caballero , X. Lü , H. T. Grahn |
Title |
Laterally biased structures for room temperature operation of quantumwell infrared photodetectors |
|
Source | J. Cryst. Growth , 477 , 272 ( 2017 ) | |
DOI : 10.1016/j.jcrysgro.2017.04.023 | Cite : Bibtex RIS |
25 | Author | H.-W. Hübers , H. Richter , R. Eichholz , M. Wienold , K. Biermann , L. Schrottke , H. T. Grahn |
Title |
Heterodyne Spectroscopy of Frequency Instabilities in Terahertz Quantum-Cascade Lasers Induced by Optical Feedback |
|
Source | IEEE J. Sel. Topics Quantum Electron. , 23 , 1800306 ( 2017 ) | |
DOI : 10.1109/JSTQE.2017.2684078 | Cite : Bibtex RIS |
26 | Author | Z. Z. Yin , H. Song , Y. H. Zhang , M. Ruiz-Garcia , M. Carretero , L. L. Bonilla , K. Biermann , H. T. Grahn |
Title |
Noise-enhanced chaos in a weakly coupled GaAs/(Al,Ga)As superlattice |
|
Source | Phys. Rev. E , 95 , 012218 ( 2017 ) | |
DOI : 10.1103/PhysRevE.95.012218 | Download: PDF | Cite : Bibtex RIS |
27 | Author | C. Hauswald , I. Giuntoni , T. Flissikowski , T. Gotschke , R. Calarco , H. T. Grahn , L. Geelhaar , O. Brandt |
Title |
Luminous efficiency of ordered arrays of GaN nanowires with sub-wavelength diameters |
|
Source | ACS Photonics , 4 , 52 ( 2017 ) | |
DOI : 10.1021/acsphotonics.6b00551 | Cite : Bibtex RIS |
28 | Author | T. Hagelschuer , M. Wienold , H. Richter , L. Schrottke , K. Biermann , H. T. Grahn , H.-W. Hübers |
Title |
Terahertz gas spectroscopy through self-mixing in a quantum-cascade laser |
|
Source | Appl. Phys. Lett. , 109 , 191101 ( 2016 ) | |
DOI : 10.1063/1.4967435 | Download: PDF | Cite : Bibtex RIS |
29 | Author | C. Pfüller , P. Corfdir , C. Hauswald , T. Flissikowski , X. Kong , J. K. Zettler , S. Fernández-Garrido , P. Dogan , H. T. Grahn , A. Trampert , L. Geelhaar , O. Brandt |
Title |
Nature of excitons bound to inversion domain boundaries: Origin of the 3.45-eV luminescence lines in spontaneously formed GaN nanowires on Si(111) |
|
Source | Phys. Rev. B , 94 , 155308 ( 2016 ) | |
DOI : 10.1103/PhysRevB.94.155308 | Download: PDF | Cite : Bibtex RIS |
30 | Author | P. Corfdir , H. Küpers , R. B. Lewis , T. Flissikowski , H. T. Grahn , L. Geelhaar , O. Brandt |
Title |
Exciton dynamics in GaAs(Al,Ga)As core-shell nanowires with shell quantum dots |
|
Source | Phys. Rev. B , 94 , 155413 ( 2016 ) | |
DOI : 10.1103/PhysRevB.94.155413 | Download: PDF | Cite : Bibtex RIS |