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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 3 — Feb. 1, 2012
  • pp: 359–361

Enhance the resolution of photonic crystal negative refraction imaging by metal grating

Peng Shi, Kun Huang, and Yong-ping Li  »View Author Affiliations


Optics Letters, Vol. 37, Issue 3, pp. 359-361 (2012)
http://dx.doi.org/10.1364/OL.37.000359


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Abstract

The resolution of imaging is limited by the missing of high-frequencies information. The superlens employing negative refraction can compensate for these components. But for the directional coupling of Bloch waves and the low coupling efficiency of large-angle waves, the resolution of subwavelength imaging is not satisfactory. However, the subwavelength metallic grating can produce high-order diffracted waves carrying a lot of high-frequencies information. Therefore, this structure is used to inhibit the zero-order diffraction and enhance the high-order diffraction to achieve super-resolution.

© 2012 Optical Society of America

OCIS Codes
(100.6640) Image processing : Superresolution
(160.3900) Materials : Metals
(230.1950) Optical devices : Diffraction gratings
(350.3618) Other areas of optics : Left-handed materials
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

ToC Category:
Materials

History
Original Manuscript: September 15, 2011
Revised Manuscript: November 30, 2011
Manuscript Accepted: December 2, 2011
Published: January 20, 2012

Citation
Peng Shi, Kun Huang, and Yong-ping Li, "Enhance the resolution of photonic crystal negative refraction imaging by metal grating," Opt. Lett. 37, 359-361 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-3-359

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