moving phase gratingThe stimulated backscattering theory under the highly depleted pump condition is studied. We find a solution of the scattering wave which is the phase-conjugate of the incident pump wave. Its frequency shift arises from the moving phase grating. Using Kukhtarev's model we ...
The wave form of the phase conjugate wave follows the pump square wave. The build-up time of the phase conjugate wave under a square-wave pump was found to be twice that under a c.w. pump when the peak power of the square wave was the same as the power of the c.w. beam.doi:...
A self-pumped phase conjugate mirror and method is disclosed in which an optical beam is applied to a crystal formed from a photorefractive material, the beam is deflected back into the crystal as a r
The generation of oscillations in a ring self-pumped phase-conjugate mirror (RSPPCM) with a photorefractive Ba 0.77Ca 0.23TiO 3 crystal (BCT) as an active medium is shown. The interplay of a reflection and a transmission grating is observed, whereas the threshold of the RSPPCM can be ...
The self-pumped phase conjugate reflectivity and the response time of Ce∶Cu∶KNSBN were measured. 测试了自泵浦位相共轭反射率和响应时间。 2. The dependence of self-pumped phase conjugate refleetivity upon various experimental conditions (incident angle, incident position, incident wave length and ...
Expressions for the phase of reflection from a photorefractive phase-conjugate mirror are obtained as a function of the intensity and phase of the pump and the probe beams. The phase is independent of these parameters in common photorefractive conditions in which the index grating is spatially shift...
Continuous-Wave Phase-Conjugate Self-Oscillation Induced by Na-Vapour Degenerate Four-Wave Mixing with Gain We demonstrate experimentally that phase-conjugation (PC) by resonant degenerate four-wave mixing in Na vapour can reach large efficiencies in the c.w. reg... J.,R.,R,... - 《Europhys...
3) phase conjugate 相位共轭 1. The time evolution of the frequency-varied phase conjugate wave intensity, the dependence of the phase conjugate reflectivity on the incident beams, the dependence of the phase conjugate reflectivity on pump-to-pump ratio, and the dependence of the phase conjugate...
1.The time evolution of the frequency-varied phase conjugate wave intensity, the dependence of the phase conjugate reflectivity on the incident beams, the dependence of the phase conjugate reflectivity on pump-to-pump ratio, and the dependence of the phase conjugate reflectivity on signal-to-pump ...
It is close to that pumped by a continuous-wave pump source. The temporal width tpc and spectral width pc of the phase conjugate pulse were measured to be the same as that of the pump pulse. The intensity coupling gain of two-wave coupling as a function of time delay D between two ...