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Title: Photonic crystal light source

Patent ·
OSTI ID:973151

A light source is provided by a photonic crystal having an enhanced photonic density-of-states over a band of frequencies and wherein at least one of the dielectric materials of the photonic crystal has a complex dielectric constant, thereby producing enhanced light emission at the band of frequencies when the photonic crystal is heated. The dielectric material can be a metal, such as tungsten. The spectral properties of the light source can be easily tuned by modification of the photonic crystal structure and materials. The photonic crystal light source can be heated electrically or other heating means. The light source can further include additional photonic crystals that exhibit enhanced light emission at a different band of frequencies to provide for color mixing. The photonic crystal light source may have applications in optical telecommunications, information displays, energy conversion, sensors, and other optical applications.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
6,768,256
Application Number:
10/301,891
OSTI ID:
973151
Country of Publication:
United States
Language:
English

References (7)

Two- and Three-Dimensional Photonic Crystals Built with VLSI Tools journal August 2001
Defect structures in metallic photonic crystals journal December 1996
Metallic photonic band-gap materials journal October 1995
Enhancement and suppression of thermal emission by a three-dimensional photonic crystal journal July 2000
All-metallic three-dimensional photonic crystals with a large infrared bandgap journal May 2002
A three-dimensional photonic crystal operating at infrared wavelengths journal July 1998
Photonic crystal enhanced narrow-band infrared emitters journal December 2002

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