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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 4, Iss. 1 — Jan. 10, 2006
  • pp: 52–54

Optical transmission enhancement by a sub-wavelength film lens

Fei Zhou, Wendong Xu, Yang Wang, and Fuxi Gan  »View Author Affiliations


Chinese Optics Letters, Vol. 4, Issue 1, pp. 52-54 (2006)


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Abstract

A new sub-wavelength metallic film lens configuration is proposed, which is embedded in a thin ideal metal film, and its near field optical properties are investigated by finite-difference time-domain (FDTD) method. It is found that the optical transmission is greatly enhanced, and the spot size can be reduced by the sub-wavelength metallic film lens in comparison with the bare aperture. This kind of lens is expected to have practical applications in the very small aperture laser (VSAL), a promising nanosource for near-field optical storage and lithography.

© 2005 Chinese Optics Letters

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(120.7000) Instrumentation, measurement, and metrology : Transmission
(210.0210) Optical data storage : Optical data storage
(350.6830) Other areas of optics : Thermal lensing

Citation
Fei Zhou, Wendong Xu, Yang Wang, and Fuxi Gan, "Optical transmission enhancement by a sub-wavelength film lens," Chin. Opt. Lett. 4, 52-54 (2006)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-4-1-52


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