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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 8 — Apr. 15, 2008
  • pp: 869–871

All-optical switching in subwavelength metallic grating structure containing nonlinear optical materials

Changjun Min, Pei Wang, Chunchong Chen, Yan Deng, Yonghua Lu, Hai Ming, Tingyin Ning, Yueliang Zhou, and Guozhen Yang  »View Author Affiliations


Optics Letters, Vol. 33, Issue 8, pp. 869-871 (2008)
http://dx.doi.org/10.1364/OL.33.000869


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Abstract

All-optical switching based on a subwavelength metallic grating structure containing nonlinear optical materials has been proposed and numerically investigated. Metal-dielectric composite material is used in the switching for its larger third-order nonlinear susceptibility ( 10 7 esu ) and ultrafast response properties. The calculated dependence of the signal light intensity on the pump light intensity shows a bistable behavior, which results in a significant switch effect. It rests on a surface plasmon's enhanced intensity-dependent change of the effective dielectric constant of Kerr nonlinear media, corresponding to a transition of the far-field transmission from a low- to high-transmission state. The study of this switching structure shows great advantages of smaller size, lower requirement of pump light intensity, and shorter switching time at approximately the picosecond level.

© 2008 Optical Society of America

OCIS Codes
(190.1450) Nonlinear optics : Bistability
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(130.4815) Integrated optics : Optical switching devices

ToC Category:
Optics at Surfaces

History
Original Manuscript: January 7, 2008
Revised Manuscript: February 24, 2008
Manuscript Accepted: March 14, 2008
Published: April 14, 2008

Citation
Changjun Min, Pei Wang, Chunchong Chen, Yan Deng, Yonghua Lu, Hai Ming, Tingyin Ning, Yueliang Zhou, and Guozhen Yang, "All-optical switching in subwavelength metallic grating structure containing nonlinear optical materials," Opt. Lett. 33, 869-871 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-8-869

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