Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 31, 2007
Patent Application Number
11210231
Date Filed
August 23, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
Light transmission is maximized through the pass band of a photonic bandgap (PBG) crystal (having alternating high- and low-index material) while preserving high reflection for stop band. An anti-reflective coating (ARC) is used to coat the PBG crystal wherein the ARC material has a refractive index of n=(nair×nhigh index material)1/2 and thickness around λc/8 where λc is center wavelength.
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