Bl. Liang et al., Holographic recording with orthogonally polarized beams in a cesium-doped (K0.5Na0.5)(0.2)(Sr0.75Ba0.25)(0.9)Nb2O6 crystal, APPL OPTICS, 40(26), 2001, pp. 4667-4671
Holographic recording with orthogonally polarized beams in a cesium-doped K
NSBN [(K0.5Na0.5)(0.2)(Sr0.75Ba0.25)(0.9)Nb2O6] crystal has been studied. I
t was found that this kind of photorefractive crystal possesses high linear
dichroism, which makes it suitable for use in polarization holography. The
diffraction efficiency as a function of the polarization orientation of th
e reference beam and as a function of the fringe modulation at the optimum
polarization orientation of the reference beam is experimentally investigat
ed. Theoretical fitting based on Kahmann models was performed and agrees we
ll with the experimental data. In the experiments, both polarization hologr
aphy and conventional holography are used to record a binary object. The re
construction shows that polarization holography with Ce:KNSBN is highly eff
ective, exhibiting high diffraction efficiency and reduced fanning noise. (
C) 2001 Optical Society of America.