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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 16 — Aug. 2, 2010
  • pp: 16499–16506

Pixel level optical-transfer-function design based on the surface-wave-interferometry aperture

Guoan Zheng, Yingmin Wang, and Changhuei Yang  »View Author Affiliations

Optics Express, Vol. 18, Issue 16, pp. 16499-16506 (2010)

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The design of optical transfer function (OTF) is of significant importance for optical information processing in various imaging and vision systems. Typically, OTF design relies on sophisticated bulk optical arrangement in the light path of the optical systems. In this letter, we demonstrate a surface-wave-interferometry aperture (SWIA) that can be directly incorporated onto optical sensors to accomplish OTF design on the pixel level. The whole aperture design is based on the bull’s eye structure. It composes of a central hole (diameter of 300 nm) and periodic groove (period of 560 nm) on a 340 nm thick gold layer. We show, with both simulation and experiment, that different types of optical transfer functions (notch, highpass and lowpass filter) can be achieved by manipulating the interference between the direct transmission of the central hole and the surface wave (SW) component induced from the periodic groove. Pixel level OTF design provides a low-cost, ultra robust, highly compact method for numerous applications such as optofluidic microscopy, wavefront detection, darkfield imaging, and computational photography.

© 2010 OSA

OCIS Codes
(110.4850) Imaging systems : Optical transfer functions
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Imaging Systems

Original Manuscript: June 21, 2010
Revised Manuscript: July 12, 2010
Manuscript Accepted: July 14, 2010
Published: July 21, 2010

Guoan Zheng, Yingmin Wang, and Changhuei Yang, "Pixel level optical-transfer-function design based on the surface-wave-interferometry aperture," Opt. Express 18, 16499-16506 (2010)

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