title: Gaussian-beam-induced photorefractive birefringence and its application to radio-frequency signal excision.
abstract: For Gaussian-beam-induced optical limiting based on photoconductive field shielding of electro-optic (EO) birefringence, power-limiting notch widths may be accurately determined by considering the power-limiting threshold for the photorefractive crystal where excess charge accumulates. With sufficient optical intensity the space-charge field completely screens the externally applied electric field, and only a small diffusion field remains. The upper limit of light intensity attenuation is the extinction ratio for the combination of polarizers and EO crystal.
authors.forename: Dale M
authors.initials: DM
authors.lastname: Stevens
authors.forename: Partha P
authors.initials: PP
authors.lastname: Banerjee