Waveguide resonances with selectable polarization in an infrared thermal emitter

Wei Lun Huang, Hui Hsin Hsiao, Chih Yu Lin, Ming Ru Tang, Si Chen Lee

Research output: Contribution to journalArticle

Abstract

A multi-band infrared thermal emitter with polarized waveguide resonances was investigated. The device is constructed by embedding the metallic grating strips within the resonant cavity of a metal/dielectric/metal (MDM) structure. The proposed arrangement makes it possible to generate waveguide resonances with mutually orthogonal polarization, thereby providing an additional degree of freedom to vary the resonant wavelengths and polarizations in the medium infrared region. The measured reflection spectra and the finite-difference time-domain (FDTD) simulation indicated that the electric fields of the waveguide modes with two orthogonal polarizations are distributed in different regions of the cavity. Resonant wavelengths in different polarizations can be adjusted by altering the period, the metallic line width, or the position of the embedded gold strips. The ratio of the full width at half maximum (FWHM) to the peak wavelength was achieved to be smaller than 0.035. This study demonstrated a multi-band infrared thermal emission featuring a narrow bandwidth and polarization characteristics, which is quite suitable to be applied to the non-dispersive infrared (NDIR) detection system.

Original languageEnglish
Article number085122
JournalAIP Advances
Volume7
Issue number8
DOIs
Publication statusPublished - Aug 1 2017
Externally publishedYes

Fingerprint

emitters
waveguides
polarization
strip
wavelengths
polarization characteristics
cavity resonators
thermal emission
metals
embedding
degrees of freedom
gratings
gold
bandwidth
cavities
electric fields
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Huang, W. L., Hsiao, H. H., Lin, C. Y., Tang, M. R., & Lee, S. C. (2017). Waveguide resonances with selectable polarization in an infrared thermal emitter. AIP Advances, 7(8), [085122]. https://doi.org/10.1063/1.4995017

Waveguide resonances with selectable polarization in an infrared thermal emitter. / Huang, Wei Lun; Hsiao, Hui Hsin; Lin, Chih Yu; Tang, Ming Ru; Lee, Si Chen.

In: AIP Advances, Vol. 7, No. 8, 085122, 01.08.2017.

Research output: Contribution to journalArticle

Huang, WL, Hsiao, HH, Lin, CY, Tang, MR & Lee, SC 2017, 'Waveguide resonances with selectable polarization in an infrared thermal emitter', AIP Advances, vol. 7, no. 8, 085122. https://doi.org/10.1063/1.4995017
Huang, Wei Lun ; Hsiao, Hui Hsin ; Lin, Chih Yu ; Tang, Ming Ru ; Lee, Si Chen. / Waveguide resonances with selectable polarization in an infrared thermal emitter. In: AIP Advances. 2017 ; Vol. 7, No. 8.
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