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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 7 — Jul. 23, 2008

Full field of view super-resolution imaging based on two static gratings and white light illumination

Javier García, Vicente Micó, Dan Cojoc, and Zeev Zalevsky  »View Author Affiliations


Applied Optics, Vol. 47, Issue 17, pp. 3080-3087 (2008)
http://dx.doi.org/10.1364/AO.47.003080


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Abstract

The usage of two static gratings for obtaining super-resolved imaging dates back to the work by Bachl and Lukosz in 1967. However, in their approach a severe reduction in the field of view was the necessary condition for improving the resolution. We present an approach based on two static gratings without sacrificing the field of view. The key idea for not paying with the field of view is to use white light illumination to average the ghost images obtained outside the region of interest since the positions of those images are wavelength dependent. Moreover, large magnification is achieved by using a commercial microscope objective instead of a test system with a unity magnification as presented in previous works. Because of the large magnification, the second grating has a low spatial period. This allows us to create an intermediate image and use a second imaging lens with low resolution capability while still obtaining an imaging quality as good as that provided by the first imaging lens. This is an important improvement in comparison with the original super-resolving method with two fixed gratings.

© 2008 Optical Society of America

OCIS Codes
(100.6640) Image processing : Superresolution
(110.4850) Imaging systems : Optical transfer functions

ToC Category:
Image Processing

History
Original Manuscript: February 13, 2008
Revised Manuscript: May 6, 2008
Manuscript Accepted: May 9, 2008
Published: June 2, 2008

Virtual Issues
Vol. 3, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Javier García, Vicente Micó, Dan Cojoc, and Zeev Zalevsky, "Full field of view super-resolution imaging based on two static gratings and white light illumination," Appl. Opt. 47, 3080-3087 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-47-17-3080

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