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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 8 — Apr. 15, 2011
  • pp: 1440–1442

Angle-independent plasmonic infrared band-stop reflective filter based on the Ag / Si O 2 / Ag T-shaped array

Cheng-Wen Cheng, Mohammed Nadhim Abbas, Zi-Chang Chang, M. H. Shih, Chih-Ming Wang, M. C. Wu, and Yia-Chung Chang  »View Author Affiliations


Optics Letters, Vol. 36, Issue 8, pp. 1440-1442 (2011)
http://dx.doi.org/10.1364/OL.36.001440


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Abstract

A plasmonic infrared (IR) filter assisted by localized surface plasmon polaritons (LSPPs) in a Ag / SiO 2 / Ag T-shaped array was theoretically and experimentally investigated. By using a Fourier transform infrared (FTIR) spectrometer, an angle-independent LSPP resonant mode caused by a Fabry–Pérot resonance in the structure was observed in agreement with the prediction from the rigorous coupled-wave analysis (RCWA) simulation. The resonant wavelength of the mode can also be controlled by modifying the geometry of the T-shaped structure. Such LSPP property can be used as an IR reflection-type band-stop filter with a single spectral bandwidth and an ultrahigh immunity to incident angles.

© 2011 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Optical Devices

History
Original Manuscript: January 27, 2011
Revised Manuscript: March 17, 2011
Manuscript Accepted: March 19, 2011
Published: April 13, 2011

Citation
Cheng-Wen Cheng, Mohammed Nadhim Abbas, Zi-Chang Chang, M. H. Shih, Chih-Ming Wang, M. C. Wu, and Yia-Chung Chang, "Angle-independent plasmonic infrared band-stop reflective filter based on the Ag/SiO2/Ag T-shaped array," Opt. Lett. 36, 1440-1442 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-8-1440

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