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Multi-crystalline silicon as active medium for terahertz intracenter lasers

Pavlov, Sergey and Hübers, Heinz-Wilhelm and Abrosimov, Nickolay and Riemann, Helge and Gavrilenko, Ludmila and Antonov, Alexander (2008) Multi-crystalline silicon as active medium for terahertz intracenter lasers. Physica B: Condensed Matter, 403 (4), pp. 535-538. Elsevier. DOI: 10.1016/j.physb.2007.08.221.

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Abstract

Stimulated emission at terahertz frequencies has been obtained from multi-crystalline silicon doped by phosphor under optical excitation by a mid-infrared laser. The silicon samples consist of grains with a characteristic size distribution in the range from 50 to 500 μm. The maximum operation temperature of the laser made from multi-crystalline silicon is 6 K less than that of monocrystalline lasers and the maximum output power is three times less while its laser threshold is only slightly higher and the emission frequency is the same. These effects are attributed to internal strain and enhanced phonon scattering induced by grain boundaries.

Document Type:Article
Title:Multi-crystalline silicon as active medium for terahertz intracenter lasers
Authors:
AuthorsInstitution or Email of Authors
Pavlov, SergeyUNSPECIFIED
Hübers, Heinz-WilhelmUNSPECIFIED
Abrosimov, NickolayLeibniz-Institut für Kristallzüchtung (IKZ), Berlin
Riemann, HelgeLeibniz-Institut für Kristallzüchtung (IKZ), Berlin
Gavrilenko, LudmilaInstitute for Physics of Microstructures, RAS, N.Novgorod, Russia
Antonov, AlexanderInstitute for Physics of Microstructures, RAS, N.Novgorod, Russia
Date:1 March 2008
Journal or Publication Title:Physica B: Condensed Matter
Volume:403
DOI:10.1016/j.physb.2007.08.221
Page Range:pp. 535-538
Publisher:Elsevier
Status:Published
Keywords:Terahertz; Silicon laser; Multi-crystalline silicon
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: Dr. Sergey Pavlov
Deposited On:25 Nov 2008
Last Modified:12 Dec 2013 20:33

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