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Definition of "nonlinear-optic material" |
a material from the following group: GaAs, ZnS, ZnSe, CuCl, InSb, InAs, and CdS. When these transparent materials are illuminated with input light, their refractive indices depend nonlinearly on the illuminating light intensity. The relation of refractive index and illuminating intensity resembles a threshold function. The phase of output light transmitting through the nonlinear material will be modulated by the refractive index of material. The phase modulation is translated into intensity variation using an interferometer. |
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