Incoherent imaging in the presence of unwanted laser radiation: vortex and axicon wavefront coding

Abbie T. Watnik; Garreth J. Ruane; Grover A. Swartzlander

doi:10.1117/1.OE.55.12.123102

7 December 2016 Incoherent imaging in the presence of unwanted laser radiation: vortex and axicon wavefront coding

Abbie T. Watnik, Garreth J. Ruane, Grover A. Swartzlander

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Optical Engineering, Vol. 55, Issue 12, 123102 (December 2016). https://doi.org/10.1117/1.OE.55.12.123102

Abstract

Vortex and axicon phase masks are introduced to the pupil plane of an imaging system, altering both the point spread function and optical transfer function for monochromatic and broadband coherent and incoherent light. Each phase mask results in the reduction of the maximum irradiance of a localized coherent laser source, while simultaneously allowing for the recovery of the incoherent background scene. We describe the optical system, image processing, and resulting recovered images obtained through this wavefront encoding approach for laser suppression.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Abbie T. Watnik, Garreth J. Ruane, and Grover A. Swartzlander "Incoherent imaging in the presence of unwanted laser radiation: vortex and axicon wavefront coding," Optical Engineering 55(12), 123102 (7 December 2016). https://doi.org/10.1117/1.OE.55.12.123102

Published: 7 December 2016

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