Analytic steady-state solutions to dynamic grating envelope

The photorefractive holographic recording is a dynamic grating formulation process, where the grating is induced by the interference modulation of two beams, and the energies of the beams are exchanged with each other owing t o their interaction in the induced grating. The grating modulation envelope is a comprehensive analysis for holographic dynamic recording and non-dest ructive readout, but analytic solutions can only be obtained by simultaneou sly solving the materials equations and the coupled wave equations. In this paper, based on Kukhtarev's model and Moharam's field function exact stead y-state analytic expressions for dynamic grating envelopes are deduced for any constant Values of light modulation depth and light excitation efficien cy. Thus their approximations for straight formulation instead of parametri c formulation are then obtained. These steady-state analytic solutions to e nvelopes describe the dynamic holographic recording and readout more clearl y and exactly.