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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 29 — Oct. 10, 2012
  • pp: 7098–7102

Subwavelength B-shaped metallic hole array terahertz filter with InSb bar as thermally tunable structure

Wei Li, Dengfeng Kuang, Fei Fan, Shengjiang Chang, and Lie Lin  »View Author Affiliations

Applied Optics, Vol. 51, Issue 29, pp. 7098-7102 (2012)

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We propose a subwavelength B-shaped metallic hole array filter with an embedded thermally tunable InSb semiconductor bar in the terahertz regime. The resonance frequency of this filter can be actively tuned by controlling the temperature of InSb. The transmissions of the filter are calculated with the finite-difference time domain method at various temperatures. Narrowband THz wave with the full width at half maximum of 235 GHz can be selected in the frequency range from 0.74 to 2.02 THz at temperatures from 160 to 350 K.

© 2012 Optical Society of America

OCIS Codes
(230.4110) Optical devices : Modulators
(350.2450) Other areas of optics : Filters, absorption
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:

Original Manuscript: July 16, 2012
Manuscript Accepted: August 27, 2012
Published: October 9, 2012

Wei Li, Dengfeng Kuang, Fei Fan, Shengjiang Chang, and Lie Lin, "Subwavelength B-shaped metallic hole array terahertz filter with InSb bar as thermally tunable structure," Appl. Opt. 51, 7098-7102 (2012)

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