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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 5 — Mar. 1, 2014
  • pp: 1262–1265

Tunable enhanced 0th-order transmission in a metal–dielectric hole array covered with a subwavelength liquid crystal layer

Takayuki Matsui, Hiroyuki Yoshida, Atsushi Miura, Junji Kobashi, Naoki Ikeda, Yoshimasa Sugimoto, and Masanori Ozaki  »View Author Affiliations


Optics Letters, Vol. 39, Issue 5, pp. 1262-1265 (2014)
http://dx.doi.org/10.1364/OL.39.001262


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Abstract

We demonstrate tunable, enhanced 0th-order transmission through a metal–dielectric nanohole array device with a subwavelength-thick liquid crystal (LC) layer. The LC filled the nanoholes and formed a subwavelength covering layer, which is then capped by a top cover layer. The wavelength where the transmittance dip associated with the LC occurs is determined by the anisotropic refractive-index component of the LC, which is normal to the surface of the hole array. A low-refractive-index cover layer suppresses unwanted higher-order diffraction, which results in an enhancement of the 0th-order transmission, which is closely related to laterally propagating surface plasmon polaritons. The proposed design is expected to help realize tunable plasmonic devices with high optical transmittance.

© 2014 Optical Society of America

OCIS Codes
(230.3720) Optical devices : Liquid-crystal devices
(160.3918) Materials : Metamaterials
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Materials

History
Original Manuscript: November 6, 2013
Revised Manuscript: January 13, 2014
Manuscript Accepted: January 15, 2014
Published: February 25, 2014

Citation
Takayuki Matsui, Hiroyuki Yoshida, Atsushi Miura, Junji Kobashi, Naoki Ikeda, Yoshimasa Sugimoto, and Masanori Ozaki, "Tunable enhanced 0th-order transmission in a metal–dielectric hole array covered with a subwavelength liquid crystal layer," Opt. Lett. 39, 1262-1265 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-5-1262

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