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Three-dimensional photonic-crystal emission through thermal excitation
Shawn-Yu Lin1, J G Fleming, I El-Kady
1MS 0603, Sandia National Laboratories, PO Box 5800, Albuquerque, New Mexico 87185, USA. slin@sandia.gov
Optics Letters
|November 1, 2003
Abstract:
A three-dimensional tungsten photonic crystal is thermally excited and shown to emit light at a narrow band, lambda = 3.3-4.25 microm. The emission is experimentally observed to exceed that of the free-space Planck radiation over a wide temperature range, T = 475-850 K. It is proposed that an enhanced density of state associated with the propagating electromagnetic Bloch waves in the photonic crystal is responsible for this experimental finding.