Patent ID: 8228129
Filing Date: 2012-07-24
Classification: G01J,G01N

Abstract:
1. A source of radiation for a specified band of wavelengths, comprising: a photonic crystal that exhibits a band gap coincident with the specified band such that a wavelength within the band gap is substantially confined in at least one dimension within the photonic crystal; at least one void defect cavity substantially within the photonic crystal that exhibits a cavity resonance within the band gap in N dimensions where N is an integer of value 1, 2 or 3; an oscillator substantially within the void defect cavity in the crystal, said oscillator resonating in M dimensions where M is an integer less than N of value 0, 1 or 2 to generate electromagnetic radiation having a spectrum that exhibits at least one local peak, one said local peak overlapping with said cavity resonance whereby the cavity accepts and transmits electromagnetic radiation in the local peak; and means for heating the oscillator to increase the electromagnetic radiation.