Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shih-Yuan Wang0
Date of Patent
June 26, 2007
0Patent Application Number
109491580
Date Filed
September 24, 2004
0Patent Primary Examiner
Patent abstract
An electromagnetic medium is described, the electromagnetic medium comprising a periodic array patterned to provide at least one photonic bandgap and to provide negative refraction for incident radiation at an operating frequency lying within the at least one photonic bandgap. The periodic array includes an externally powered gain material having an amplification band that includes the operating frequency.
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