Shastin, V. N. and Zhukavin, R. Kh. and Kovalevsky, K. A. and Tsyplenkov, V. V. and Pavlov, S. G. and Hübers, H.-W. (2009) Advanced THz laser performance of shallow donors in axially stressed silicon crystal. Journal of Physics: Conference Series, 193, 012086-1. Institute of Physics (IOP) Publishing. doi: 10.1088/1742-6596/193/1/012086.
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Abstract
Terahertz stimulated emission (4â��6 THz) from optically excited group-V donors (phosphor P, antimony Sb, arsenic As, bismuth Bi) in silicon crystal under compressive force has been studied. Measurements evidence that compressive force of 1â��1.5 kbar for P, Sb and of 2â��3 kbar for As, Bi applied along {100} crystallographic orientations results in the enhancement of the laser gain and enlarges the emission efficiency. At that laser threshold intensity can be decreased by two orders of magnitude. For As and Bi donors it is accompanied by the laser line switching while the 2p0 state turns out to be the upper laser state instead of the 2p�± one. The effect of the uniaxial stress on donor lasing originates from conduction band valley shift which split donor states changing their eigen-values and eigen-functions. According to the calculations of phonon-assisted relaxation rates appropriate donor modification increases the lifetime and makes pump efficiency of the upper laser states better.
Item URL in elib: | https://elib.dlr.de/62240/ | |||||||||||||||||||||
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Document Type: | Article | |||||||||||||||||||||
Title: | Advanced THz laser performance of shallow donors in axially stressed silicon crystal | |||||||||||||||||||||
Authors: |
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Date: | 2009 | |||||||||||||||||||||
Journal or Publication Title: | Journal of Physics: Conference Series | |||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||
Open Access: | Yes | |||||||||||||||||||||
Gold Open Access: | Yes | |||||||||||||||||||||
In SCOPUS: | Yes | |||||||||||||||||||||
In ISI Web of Science: | No | |||||||||||||||||||||
Volume: | 193 | |||||||||||||||||||||
DOI : | 10.1088/1742-6596/193/1/012086 | |||||||||||||||||||||
Page Range: | 012086-1 | |||||||||||||||||||||
Publisher: | Institute of Physics (IOP) Publishing | |||||||||||||||||||||
Series Name: | Conference Series | |||||||||||||||||||||
Status: | Published | |||||||||||||||||||||
Keywords: | silicon laser | |||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||||||||||||||
HGF - Program: | Space (old) | |||||||||||||||||||||
HGF - Program Themes: | W EW - Erforschung des Weltraums | |||||||||||||||||||||
DLR - Research area: | Space | |||||||||||||||||||||
DLR - Program: | W EW - Erforschung des Weltraums | |||||||||||||||||||||
DLR - Research theme (Project): | W - Projekt SOFIA (old) | |||||||||||||||||||||
Location: | Berlin-Adlershof | |||||||||||||||||||||
Institutes and Institutions: | Institute of Planetary Research > Terahertz and Infrared Sensors | |||||||||||||||||||||
Deposited By: | Pavlov, Dr. Sergey | |||||||||||||||||||||
Deposited On: | 06 Jan 2010 11:48 | |||||||||||||||||||||
Last Modified: | 08 Mar 2018 18:44 |
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