Fast relaxation of free carriers in compensated n- and p-type germanium

Deßmann, N. and Pavlov, S.G. and Mittendorff, Martin and Winnerl, Stephan and Zhukavin, R.Kh. and Tsyplenkov, V.V. and Shengurov, D.V. and Shastin, V.N. and Abrosimov, Nickolay and Riemann, H. and Hübers, Heinz-Wilhelm (2013) Fast relaxation of free carriers in compensated n- and p-type germanium. IRMMW 2013, 2013-09-01 - 2013-09-06, Mainz, Deutschland. doi: 10.1109/IRMMW-THz.2013.6665867.

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Abstract

The relaxation of free holes and electrons in highly compensated germanium doped by gallium (p-Ge:Ga:Sb) and antimony (n-Ge:Sb:Ga) has been studied by a pump-probe experiment with the free-electron laser FELBE at the Helmholtz-Zentrum Dresden-Rossendorf. The relaxation times vary between 20 ps and 300 ps and depend on the incident THz intensity and compensation level. The relaxation times are about five times shorter than previously obtained for uncompensated n-Ge:Sb and p-Ge:Ga. The results support the development of fast photoconductive detectors in the THz frequency range.

Item URL in elib:

https://elib.dlr.de/81769/

Document Type:

Conference or Workshop Item (Speech)

Title:

Fast relaxation of free carriers in compensated n- and p-type germanium

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Deßmann, N.	nils.dessmann (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Pavlov, S.G.	sergeij.pavlov (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Mittendorff, Martin	m.mittendorff (at) hzdr.de	UNSPECIFIED	UNSPECIFIED
Winnerl, Stephan	s.winnerl (at) hzdr.de	UNSPECIFIED	UNSPECIFIED
Zhukavin, R.Kh.	Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia	UNSPECIFIED	UNSPECIFIED
Tsyplenkov, V.V.	Institute for Physics of Microstructures, Russain Academy of Sciences	UNSPECIFIED	UNSPECIFIED
Shengurov, D.V.	Institute for Physics of Microstructures, Russain Academy of Sciences	UNSPECIFIED	UNSPECIFIED
Shastin, V.N.	Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia	UNSPECIFIED	UNSPECIFIED
Abrosimov, Nickolay	Leibniz-Institut für Kristallzüchtung (IKZ), Berlin	UNSPECIFIED	UNSPECIFIED
Riemann, H.	Institute of Crystal Growth, Berlin	UNSPECIFIED	UNSPECIFIED
Hübers, Heinz-Wilhelm	Heinz-Wilhelm.Huebers (at) dlr.de	UNSPECIFIED	UNSPECIFIED

Date:

September 2013

Refereed publication:

Open Access:

Yes

Gold Open Access:

In SCOPUS:

In ISI Web of Science:

DOI:

10.1109/IRMMW-THz.2013.6665867

Status:

Published

Keywords:

THz, Terahertz, Detector, Germanium, Free Electron Laser, FEL, time-resolved, Pump-probe

Event Title:

IRMMW 2013

Event Location:

Mainz, Deutschland

Event Type:

international Conference

Event Start Date:

1 September 2013

Event End Date:

6 September 2013

HGF - Research field:

Aeronautics, Space and Transport

HGF - Program:

Transport

HGF - Program Themes:

Traffic Management (old)

DLR - Research area:

Transport

DLR - Program:

V VM - Verkehrsmanagement

DLR - Research theme (Project):

V - Project OPTIMODE (old)

Location:

Berlin-Adlershof

Institutes and Institutions:

Institute of Planetary Research > Experimentelle Planetenphysik

Deposited By:

Deßmann, Nils

Deposited On:

08 Jan 2014 14:19

Last Modified:

24 Apr 2024 19:48

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