Nanoelectronics

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

 

 

1 Author X. Lü , B. Röben , L. Schrottke , K. Biermann , H. T. Grahn
Title

Correlation between frequency and location on the wafer for terahertz quantum-cascade lasers

Source Semicond. Sci. Technol. , 36 , 035012 ( 2021 )
DOI : 10.1088/1361-6641/abdd4b | 3231 Cite : Bibtex RIS
X. Lü, B. Röben, L. Schrottke, K. Biermann, and H. T. Grahn

2 Author K. Biermann , Paul L. J. Helgers , A. Crespo-Poveda , A. S. Kuznetsov , A. Tahraoui , B. Röben , X. Lü , L. Schrottke , P. V. Santos , H. T. Grahn
Title

In-situ control of molecular beam epitaxial growth by spectral reflectivity analysis

Source J. Cryst. Growth , 557 , 125993 ( 2021 )
DOI : 10.1016/j.jcrysgro.2020.125993 | 3211 Cite : Bibtex RIS
K. Biermann, Paul L. J. Helgers, A. Crespo-Poveda, A. S. Kuznetsov, A. Tahraoui, B. Röben, X. Lü, L. Schrottke, P. V. Santos, and H. T. Grahn

3 Author D. Czubak , S. Gaucher , L. Oppermann , J. Herfort , K. Zollner , J. Fabian , H. T. Grahn , M. Ramsteiner
Title

Electronic and magnetic properties of alpha-FeGe2 films embedded in vertical spin valve devices

Source Phys. Rev. Mater. , 4 , 104415 ( 2020 )
DOI : 10.1103/PhysRevMaterials.4.104415 | Download arXiv: 2010.04453 | 3196 Cite : Bibtex RIS
D. Czubak, S. Gaucher, L. Oppermann, J. Herfort, K. Zollner, J. Fabian, H. T. Grahn, and M. Ramsteiner

4 Author B. Röben , X. Lü , K. Biermann , L. Schrottke , H. T. Grahn
Title

Effective group dispersion of terahertz quantum-cascade lasers

Source J. Phys. D: Appl. Phys. , 54 , 025110 ( 2020 )
DOI : 10.1088/1361-6463/abbde3 | 3194 Cite : Bibtex RIS
B. Röben, X. Lü, K. Biermann, L. Schrottke, and H. T. Grahn

5 Author H.-W. Hübers , H. Richter , M. Wienold , X. Lü , L. Schrottke , H. T. Grahn
Title

Terahertz spectroscopy using quantum-cascade lasers

Source Photoniques , 101 , 27 ( 2020 )
DOI : 10.1051/photon/202010127 | 3187 Cite : Bibtex RIS
H.-W. Hübers, H. Richter, M. Wienold, X. Lü, L. Schrottke, and H. T. Grahn

6 Author L. Schrottke , X. Lü , B. Röben , K. Biermann , T. Hagelschuer , M. Wienold , H.-W. Hübers , M. Hannemann , J.-P. H. van Helden , J. Röpcke , H. T. Grahn
Title

High-performance GaAs/AlAs terahertz quantum-cascade lasers for spectroscopic applications

Source IEEE Trans. Terahertz Sci. Technol. , 10 , 133 ( 2019 )
DOI : 10.1109/TTHZ.2019.2957456 | 3129 Cite : Bibtex RIS
L. Schrottke, X. Lü, B. Röben, K. Biermann, T. Hagelschuer, M. Wienold, H.-W. Hübers, M. Hannemann, J.-P. H. van Helden, J. Röpcke, and H. T. Grahn

7 Author T. Alam , M. Wienold , X. Lü , K. Biermann , L. Schrottke , H. T. Grahn , H.-W. Hübers
Title

Frequency and power stabilization of a terahertz quantum-cascade laser using near-infrared optical excitation

Source Opt. Express , 27 , 36846 ( 2019 )
DOI : 10.1364/OE.27.036846 | Download: PDF | 3160 Cite : Bibtex RIS
T. Alam, M. Wienold, X. Lü, K. Biermann, L. Schrottke, H. T. Grahn, and H.-W. Hübers

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

A compact 4.75-THz source based on a quantum-cascade laser with a back-facet mirror

Source IEEE Trans. Terahertz Sci. Technol. , 9 , 606 ( 2019 )
DOI : 10.1109/TTHZ.2019.2935337 | 3140 Cite : Bibtex RIS
T. Hagelschuer, H. Richter, M. Wienold, X. Lü, B. Röben, L. Schrottke, K. Biermann, H. T. Grahn, and H.-W. Hübers

9 Author C. Sinito , P. Corfdir , C. Pfüller , G. Gao , J. Bartolomé , S. Kölling , A. Rodil Doblado , U. Jahn , J. Lähnemann , T. Auzelle , J. K. Zettler , T. Flissikowski , P. Koenraad , H. T. Grahn , L. Geelhaar , S. Fernández-Garrido , O. Brandt
Title

Absence of quantum-confined Stark effect in GaN quantum disks embedded in (Al,Ga)N nanowires grown by molecular beam epitaxy

Source Nano Lett. , 19 , 5938 ( 2019 )
DOI : 10.1021/acs.nanolett.9b01521 | Download arXiv: 1905.04090 | 3108 Cite : Bibtex RIS
C. Sinito, P. Corfdir, C. Pfüller, G. Gao, J. Bartolomé, S. Kölling, A. Rodil Doblado, U. Jahn, J. Lähnemann, T. Auzelle, J. K. Zettler, T. Flissikowski, P. Koenraad, H. T. Grahn, L. Geelhaar, S. Fernández-Garrido, and O. Brandt

10 Author B. Röben , X. Lü , K. Biermann , L. Schrottke , H. T. Grahn
Title

Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines

Source J. Appl. Phys. , 125 , 151613 ( 2019 )
DOI : 10.1063/1.5079701 | Download: PDF | 3071 Cite : Bibtex RIS
B. Röben, X. Lü, K. Biermann, L. Schrottke, and H. T. Grahn

Contact

Prof. Dr. Holger T. Grahn

Head of Department 

+49 30 20377-318

htgrahn@pdi-berlin.de