E. Raita et al., EFFICIENT NONLINEAR AMPLITUDE RECORDING OF HOLOGRAPHIC GRATINGS IN ELECTROLYTICALLY COLORED POTASSIUM-BROMIDE CRYSTALS, Applied optics, 34(5), 1995, pp. 838-841
The nonlinear amplitude recording of volume holographic gratings is th
eoretically and experimentally studied in electrolytically colored pot
assium bromide crystals. A maximum diffraction efficiency of 10.8% is
obtained, which substantially exceeds the 3.7% maximum diffraction eff
iciency for linear recording.