Stimulated emission and amplification of radiation under conditions of stimulated Raman scattering in crystals

Journal Article · Mon Oct 01 00:00:00 EDT 1984 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1984v014n10ABEH006402· OSTI ID:5892372

Karpukhin, S N; Yashin, V E

An experimental study was made of the generation of Stokes radiation in focused beams under conditions of stimulated Raman scattering (STRS) in calcite and barium nitrate crystals. A high efficiency (approx.0.8) of conversion of the pump energy into the Stokes radiation energy was achieved for the opposed STRS and it was found that this was due to four-photon parametric processes. The quality of wavefront reversal of spatially homogeneous and inhomogeneous beams was determined in a wide range of energies and divergences of the pump radiation and also in a wide range of the focal lengths of the lenses employed in the process. Further amplification of radiation was achieved in an STRS amplifier made of barium nitrate and operating in the intensity averaging regime. Under saturation conditions the efficiency of conversion of the pump energy into the Stokes radiation energy was approx.0.8 and the small-signal gain was approx.1.3 x 10/sup 3/.

• Research Organization: Institute of Radio Engineering and Electronics, Moscow
• OSTI ID: 5892372
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Vol. 14:10
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BARIUM NITRATES
STIMULATED EMISSION
CALCITE
SOLID STATE LASERS
EFFICIENCY
FREQUENCY CONVERTERS
NONLINEAR OPTICS
RAMAN EFFECT
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
EMISSION
ENERGY-LEVEL TRANSITIONS
LASERS
MINERALS
NITRATES
NITROGEN COMPOUNDS
OPTICS
OXYGEN COMPOUNDS
420300* - Engineering- Lasers- (-1989)