Zheng, Guoan and Wang, Yingmin and Yang, Changhuei (2010) Pixel level optical-transfer-function design based on the surface-wave-interferometry aperture. Optics Express, 18 (16). pp. 16499-16506. ISSN 1094-4087 http://resolver.caltech.edu/CaltechAUTHORS:20100830-134234366
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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.
|Additional Information:||© 2010 Optical Society of America. Received 21 Jun 2010; revised 12 Jul 2010; accepted 14 Jul 2010; published 21 Jul 2010. We are grateful for the constructive discussions with and the generous help from Dr. Jigang Wu and Mr. Lap Man Lee from Caltech. We appreciate the assistance of the Watson cleanroom and Kavli nanoscience institute at Caltech. This work is funded by the Wallace Coulter Foundation, National Science Foundation Career Award BES-0547657, NIH R21EB008867-01.|
|Classification Code:||OCIS codes: (240.6680) Surface plasmons; (110.4850) Optical transfer functions.|
|Official Citation:||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) http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-16-16499|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||01 Sep 2010 18:23|
|Last Modified:||26 Dec 2012 12:22|
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