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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 11 — Nov. 1, 2010
  • pp: 2405–2409

Second-harmonic generation from a periodic array of noncentrosymmetric nanoholes

Renlong Zhou, Hua Lu, Xueming Liu, Yongkang Gong, and Dong Mao  »View Author Affiliations


JOSA B, Vol. 27, Issue 11, pp. 2405-2409 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002405


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Abstract

Second-harmonic generation (SHG) through a proposed thin gold film with a periodic array of subwavelength nanoholes is numerically investigated. By using a recently developed microscopic classical theory and a full-vectorial three-dimensional finite-difference time-domain method, we demonstrate that the mirror symmetry of nanoholes in one direction restricts the polarization state of second-harmonic emission in the same direction. Numerical results show that the second-order nonlinear susceptibility χ ( 2 ) y y y dominates in the process of SHG when the nanoholes possess mirror symmetry in the x-axis direction. It is also found that the surface plasmon resonance can result in the enhancement of SHG from metallic nanoholes.

© 2010 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(240.6680) Optics at surfaces : Surface plasmons
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 4, 2010
Revised Manuscript: September 10, 2010
Manuscript Accepted: September 18, 2010
Published: October 22, 2010

Citation
Renlong Zhou, Hua Lu, Xueming Liu, Yongkang Gong, and Dong Mao, "Second-harmonic generation from a periodic array of noncentrosymmetric nanoholes," J. Opt. Soc. Am. B 27, 2405-2409 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-11-2405

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