Abstract
Polarization properties of phase-conjugate (PC) mirrors obtained by degenerate four-wave mixing in resonant gas media are experimentally analyzed on various neon transitions and theoretically interpreted. We show that, because of the Doppler broadening of the decay rate of the gratings, these properties are rather insensitive to the relaxation processes in the gas phase. We demonstrate simple ways of characterizing PC mirrors with either λ/2 birefringence (for cross-polarized pumps) or J-dependent linear dichroism (for parallel-pump polarization).
© 1982 Optical Society of America
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