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Proceedings Paper

Devices for generation and detection of subnanosecond IR and FIR radiation pulses
Author(s): Eugene V. Beregulin; Sergey D. Ganichev; Ilya D. Yaroshetskii; Peter Lang; Wolfgang Schatz; Karl F. Renk
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Paper Abstract

Mechanisms of saturation absorption of IR-FIR radiation in semiconductors with degenerate band structure are investigated. As a result of this investigation a mode-locking device for pulsed IR gas lasers is developed and investigated. Using p-GE filter cooled to 78 K as the saturation absorber inside the laser resonator, subnanosecond IR laser pulses are obtained from a tunable high pressure CO2 laser. These pulses were transferred into FIR region via stimulated Raman scattering of CO2 radiation and as result tunable subnanosecond FIR laser pulses are obtained. The device permits the generation of a train of short pulses lasting 1 ns and accordingly from FIR laser. Semiconductor photoelectric detectors for subnanosecond IR-FIR radiation pulses are also described.

Paper Details

Date Published: 1 February 1991
PDF: 10 pages
Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); doi: 10.1117/12.24477
Show Author Affiliations
Eugene V. Beregulin, A. F. Ioffe Physical-Technical Institute (Russia)
Sergey D. Ganichev, A. F. Ioffe Physical-Technical Institute (Russia)
Ilya D. Yaroshetskii, A. F. Ioffe Physical-Technical Institute (Russia)
Peter Lang, Univ. of Regensburg (Germany)
Wolfgang Schatz, Univ. of Regensburg (Germany)
Karl F. Renk, Univ. of Regensburg (Germany)


Published in SPIE Proceedings Vol. 1362:
Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications
Manijeh Razeghi, Editor(s)

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