07324286 is referenced by 34 patents and cites 5 patents.

Non-mechanical optical beam steering and switching is produced by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency volume Bragg gratings recorded in a photosensitive PTR glass. Small angle beam deflection in a photoactive liquid crystal cell is produced by exposing it to a controlling beam from an external source of radiation with predetermined distribution of power density which causes predetermined spatial gradients of a refractive index in a liquid crystal cell and, therefore, refraction of a controlled beam which is made to propagate in the region with spatial gradient of the refractive index. Large angle beam deflection is produced by a volume Bragg grating with angular selectivity adjusted in such way that small angle scanning produced by optically controlled liquid crystal spatial light modulator results in change of diffraction efficiency from zero to 100% for switching the beam for two Bragg angles.

Title
Optical beam steering and switching by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency PTR Bragg gratings
Application Number
11/399166
Publication Number
7324286 (B1)
Application Date
April 6, 2006
Publication Date
January 29, 2008
Inventor
Nelson Tabirian
Winter Park
FL, US
Sarik Nersisyan
Winter Park
FL, US
Vadim I Smirnov
Orlando
FL, US
Vasile Rotar
Orlando
FL, US
Leonid B Glebov
Orlando
FL, US
Agent
Law Offices of Brian S Steinberger P A
Phyllis K Wood
Brian S Steinberger
Assignee
University of Central Florida Research Foundation
FL, US
IPC
G02B 9/00
G02B 3/00
View Original Source