OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 32, Iss. 17 — Jun. 10, 1993
  • pp: 3108–3112

Performance analysis of optical shadow-casting correlators

Kannan Raj, Dennis W. Prather, Ravindra A. Athale, and Joseph N. Mait  »View Author Affiliations


Applied Optics, Vol. 32, Issue 17, pp. 3108-3112 (1993)
http://dx.doi.org/10.1364/AO.32.003108


View Full Text Article

Enhanced HTML    Acrobat PDF (715 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We analyze the performance of two optical shadow-casting image correlators that use two-dimensional source arrays to encode the system point-spread function (PSF). The analysis of a standard shadow-casting correlator suggests that the angular divergence of the source array is a critical parameter in the determination of the maximum space–bandwidth product of the image and of the PSF that can be used with such a system. Further, the energy efficiency of a standard shadow-casting correlator is related inversely to the size of the PSF. We show that the constraints on energy efficiency and on the space–bandwidth product of the PSF can be overcome by beam steering the source elements. A modified shadow-casting correlator is proposed that uses phase-only blazed gratings to beam steer the sources. Experimental results generated by a mechanically beam-steered array are presented.

© 1993 Optical Society of America

History
Original Manuscript: September 4, 1992
Published: June 10, 1993

Citation
Kannan Raj, Dennis W. Prather, Ravindra A. Athale, and Joseph N. Mait, "Performance analysis of optical shadow-casting correlators," Appl. Opt. 32, 3108-3112 (1993)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-32-17-3108

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited