Patent ID: 6393172
Filing Date: 2002-05-21
Classification: G02F,H01S

Abstract:
A method for adjustably tuning a frequency of interaction with an energy beam in a solid dielectric device, the device comprising:a solid dielectric material, said solid dielectric material having a pattern of differing domains, at least a first type of said domains being a poled structure and forming at least two elements alternating with a second type of said domains, said at least two elements being spaced along a beam propagation axis to form a patterned structure which, in the presence of an electric field, produces patterned variations in phase velocity and an average change in phase velocity along said beam propagation axis; and at least a first electrically-conductive material forming a first electrode, said first electrode confronting said solid dielectric material and bridging at least two of said elements of said first type of poled structure, the method comprising the step of: creating an electric field through said dielectric material using said first electrode structure for controlling phase velocity.