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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 14 — Jul. 14, 2014
  • pp: 17546–17552

Nonreciprocal optical transmission through a single conical air hole in an Ag film

Nan Peng, Xiaokang Li, and Weilong She  »View Author Affiliations


Optics Express, Vol. 22, Issue 14, pp. 17546-17552 (2014)
http://dx.doi.org/10.1364/OE.22.017546


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Abstract

In this paper, we propose a simple metal micro-nano structure having the character of nonreciprocal optical zero-order transmission. The structure is a single conical air hole (CAH) in an Ag film whose optical absorption with geometric asymmetry breaks the time reversal symmetry of the electromagnetic field. By comparing the transmissions of Ag CAH with those of ideal conductor (IC) CAH, three effects of Ag CAH, including diffraction, Fabry-Perot-like (FPL) resonance and localized surface plasmon (LSP) resonance, are analyzed and discussed. Under optimized conditions, we find that the ratio of forward transmission to backward one can be larger than 9 at a proper wavelength in visible range. This kind of Ag CAH is expected to have the potential served as all-optical diode.

© 2014 Optical Society of America

OCIS Codes
(230.3990) Optical devices : Micro-optical devices
(240.6680) Optics at surfaces : Surface plasmons
(310.6628) Thin films : Subwavelength structures, nanostructures
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Plasmonics

History
Original Manuscript: May 8, 2014
Revised Manuscript: July 3, 2014
Manuscript Accepted: July 3, 2014
Published: July 11, 2014

Citation
Nan Peng, Xiaokang Li, and Weilong She, "Nonreciprocal optical transmission through a single conical air hole in an Ag film," Opt. Express 22, 17546-17552 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-14-17546


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