Process for making laser Q-switch

Claim 1

The process of forming a narrow band light radiatio filter form from organic monomers with a first center frequency which can be detuned to a second center frequency by a strong electric field with an intensity level such as that found in an intense laser beam, comprising the steps of: A. forming dielectric materials suitable for the deposition of a structure of superposed thin dielectric layers with various preselected dielectric constants and transparent to said above radiation, wherein the required successive differences in the dielectric constants of adjacent ones of said layers define a preselected sequence to provide a rugate interference form of said filter; B. successively molecularly orienting and depositing said layers on a substrate transparent to said radiation with adjacent layers in contact while varying the material formulation between layer depositions such that said layers have first order susceptibilities to electric polarization of sufficient magnitude to provide said preselected dielectric constants but also have higher order susceptibilities of sufficient magnitude and polarity to provide said layers with slightly altered dielectric constants in the presence of said strong electric field, all of which alter said preselected sequence in a manner that shifts said first center frequency to a second center frequency; and C. treating the resultant structure to improve the bonding between said layers and said substrate while retaining their transparency.