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Optical Engineering • Open Access

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

Paper 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.

Paper Details

Date Published: 7 December 2016
PDF: 9 pages
Opt. Eng. 55(12) 123102 doi: 10.1117/1.OE.55.12.123102
Published in: Optical Engineering Volume 55, Issue 12
Show Author Affiliations
Abbie T. Watnik, U.S. Naval Research Lab. (United States)
Garreth J. Ruane, Rochester Institute of Technology (United States)
Grover A. Swartzlander, Rochester Institute of Technology (United States)

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