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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 1 — Jan. 1, 2009
  • pp: 96–100

Controlling thermal radiation by photonic quantum well structure with zero-averaged-refractive-index gap

Bo Tao and Li Fu-Li  »View Author Affiliations


JOSA B, Vol. 26, Issue 1, pp. 96-100 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000096


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Abstract

Based on Kirchoff’s second law, we investigate the spectral-directional thermal emissivity of a photonic quantum well (PQW) structure with a zero-averaged-refractive-index (zero- n ¯ ) gap coating on an absorbing substrate. It is shown that the thermal emission through tunneling modes having frequencies in the zero- n ¯ gap is not only weakly dependent on the emission angle and polarization state but also insensitive to the unit-cell size scaling of the barrier photonic crystal. More importantly, the PQW structure promises the frequency-selective thermal emission for both TE and TM polarization states along a well-defined direction. This may result in designing thermal antennas.

© 2008 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(350.2450) Other areas of optics : Filters, absorption
(160.3918) Materials : Metamaterials
(160.5298) Materials : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: September 16, 2008
Manuscript Accepted: October 17, 2008
Published: December 16, 2008

Citation
Bo Tao and Li Fu-Li, "Controlling thermal radiation by photonic quantum well structure with zero-averaged-refractive-index gap," J. Opt. Soc. Am. B 26, 96-100 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-1-96

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