Title

Notch Spatial Filtering with an Acousto-Optic Modulator

Document Type

Article

Publication Date

11-1998

Publication Source

Applied Optics

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.

Inclusive pages

7532-7537

ISBN/ISSN

1559-128X

Comments

Permission documentation is on file.

Publisher

Optical Society of America

Volume

37

Issue

32

Peer Reviewed

yes