Patent ID: 7187491
Filing Date: 2007-03-06
Classification: B82Y,G02B

Abstract:
1. A device for deflecting an incident radiation beam through a steering angle to produce a deflected radiation beam, comprising a photonic crystal receiving the incident radiation beam at a dynamically controlled incidence angle and being configured to negatively refract the incident radiation beam such that relatively large controlled variations of said steering angle are provided by relatively small controlled variations of said incidence angle, the device further comprising: a substrate; an input waveguide fixed relative to said substrate and guiding said incident radiation beam toward said photonic crystal; a microelectromechanical actuator coupled to said photonic crystal such that said photonic crystal is rotatable relative to said substrate; and a plurality of output waveguides fixed relative to said substrate and coupled to receive the deflected radiation beam for a corresponding predetermined plurality of said steering angles, respectively.