From Phase Conjugate Laser Optics
Institute of Laser Engineering, Osaka University, Osaka 565-0871 Japan
The stimulated Brillouin scattering (SBS) effect in various liquids and gases can be
applied to a phase conjugator [1, 2], as described in previous chapters. In SBS liquid
media such as heavy fluorocarbons [3–5] and tetrachlorides, it is necessary to
eliminate the dissolved impurities and solid microparticles, and these media must be
carefully handled due to their toxic properties. Quartz was used as a nonlinear
medium in the first practical demonstration of SBS in 1964 . The first observation
of SBS in an optical fiber indicated that fiber provides highly reflective SBS due to
its long interaction length . Long path lengths can produce SBS even at a low
incident power [8–11]. However, the incident pulse energy must be limited to a few
millijoules to avoid surface damage of the fiber.
Organic L-arginine phosphate monohydrate (LAP) was examined in 1983 at
Shangdon University, China as a nonlinear optical material . LAP appeared to
be a promising material for laser fusion experiments as a replacement for potassium
dihydrogen phosphate (KDP) crystal [13, 14]. LAP and its deuterated analog,
DLAP, have some attractive properties...
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