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Proceedings Paper

Vertical resonant-cavity narrowband infrared thermal emitter
Author(s): Huafeng Liang; Jianjun Lai; Zhiping Zhou
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Paper Abstract

Unlike laser, spontaneous emission from bulk thermal sources is usually perceived to be incoherent and broadband. However, when subwavelength microstructures are fabricated on the surface of bulk thermal sources, the radiative characteristics can be greatly altered. In this paper, a vertical resonant-cavity narrowband thermal emitter, which is based on the theory of surface wave existing in the forbid band of the truncated one-dimensional photonic crystals, is proposed. The central wavelength, bandwidth (FWHM) and emittance at its central wavelength are 2μm, 4.3nm and nearly 100%, respectively. Theory explanation is given, and two types of numerical simulation methods (transfer matrix method (TMM) and finite difference time domain method (FDTD)) are adopted to simulate this structure. The numerical results obtained by these two different methods are consistent; therefore, the feasibility of this devised emitter is confirmed.

Paper Details

Date Published: 19 February 2009
PDF: 6 pages
Proc. SPIE 7279, Photonics and Optoelectronics Meetings (POEM) 2008: Optoelectronic Devices and Integration, 72790A (19 February 2009); doi: 10.1117/12.820626
Show Author Affiliations
Huafeng Liang, Wuhan National Lab. for Optoelectronics (China)
Huazhong Univ. of Science and Technology (China)
Jianjun Lai, Wuhan National Lab. for Optoelectronics (China)
Huazhong Univ. of Science and Technology (China)
Zhiping Zhou, Wuhan National Lab. for Optoelectronics (China)


Published in SPIE Proceedings Vol. 7279:
Photonics and Optoelectronics Meetings (POEM) 2008: Optoelectronic Devices and Integration
Liming Zhang; Michael J. O'Mahony, Editor(s)

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