Thermal antenna behavior for thin films structures

Details Thermal antenna behavior for thin films structures Thermal antenna behavior for thin films structures

2004-03-03

arxiv.org/abs/cond-mat/0403111v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Submitted to J. Opt. Soc. Am. A on 2003-August 01 Accepeted for publication 2004-February-25

Scientific paper

10.1364/JOSAA.21.001368

We show that under proper conditions thin films structures behave like thermal sources that are able to emit radiation in well defined directions over a broad spectral band for both polarization states of light. This effect results from the quantization of modes inside the structure as in a Fabry-Perot resonator. A theoretical demonstration of this effect is given using the matrix transfer method. This result is similar to the best efficient reported results with gratings but using a completely different physical principle [J. J. Greffet et al., Nature 416, 61 (2002)].

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