Title

Microlens diffusers for efficient laser speckle generation

Authors

Authors

A. D. Ducharme

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

MODULATION TRANSFER-FUNCTION; Optics

Abstract

Laser Speckle is the optical phenomena resulting from the random interference of coherent light. This phenomenon can be utilized to measure the Modulation Transfer Function (MTF) of detector arrays. Common devices used for speckle generation, such as integrating spheres and ground glass, suffer from low efficiencies less than 20%. Microlens diffusers are shown to be more efficient alternatives for speckle generation. An analysis of the statistical behavior of microlens diffusers is presented with emphasis on their application to MTF testing of detector arrays in the visible spectrum. (C) 2007 Optical Society of America.

Journal Title

Optics Express

Volume

15

Issue/Number

22

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

14573

Last Page

14579

WOS Identifier

WOS:000251223400033

ISSN

1094-4087

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