| Abstract: | Based on calculation of the nonstationary system of equations taking into consideration the interaction of waves of pumping,
cocurrent and back induced RS (IRS), and polarization waves of a scattering medium, refinement is made of the IRS parameters
for ethanol. The influence of cocurrent IRS generated from quantum noises of polarization on the process of amplification
of picosecond pulses in a field of oppositely directed subnanosecond pumping pulses is investigated. It is shown that as a
result of the high intensity of radiation upon subnanosecond pumping the cocurrent Stokes radiation generation exerts considerable
influence on the amplification of oppositely directed IRS pulses: it changes not only the energy characteristics of the entire
process but the time envelopes of the pulses as well.
B. I. Stepanov Institute of Physics of the National Academy of Sciences, 68, F. Skorina Ave., Minsk, 220072, Belarus. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 6, pp. 888–893, November–December, 1998. |
