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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 32 — Nov. 10, 1998
  • pp: 7532–7537

Notch spatial filtering with an acousto-optic modulator

Partha P. Banerjee, Dongquing Cao, and Ting-Chung Poon  »View Author Affiliations


Applied Optics, Vol. 37, Issue 32, pp. 7532-7537 (1998)
http://dx.doi.org/10.1364/AO.37.007532


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Abstract

The role of acousto-optic (AO) modulators in programmable real-time image processing has recently been demonstrated. For fully investigating the image-processing capabilities of the AO modulator, general techniques to derive spatial transfer functions are needed for a variety of physical situations. We develop a technique to determine the spatial transfer functions numerically for various cases of beam incidence on an AO modulator. Normal incidence and incidence at twice the Bragg angle are investigated as examples for which double-sided and single-sided notch spatial filtering, respectively, are achieved. The observed spatial-filtering characteristics are reconciled with simple intuitive physical arguments.

© 1998 Optical Society of America

OCIS Codes
(070.1060) Fourier optics and signal processing : Acousto-optical signal processing
(100.1160) Image processing : Analog optical image processing

History
Original Manuscript: February 12, 1998
Published: November 10, 1998

Citation
Partha P. Banerjee, Dongquing Cao, and Ting-Chung Poon, "Notch spatial filtering with an acousto-optic modulator," Appl. Opt. 37, 7532-7537 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-32-7532

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