Systems and methods for simultaneous multi-channel off-axis holography
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United States of America Patent
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Feb 6, 2024
Grant Date -
Jun 4, 2020
app pub date -
Nov 4, 2019
filing date -
Aug 6, 2015
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Abstract
Systems and methods for simultaneous multi-channel off-axis holography are described. Multi-channel imaging systems can include a light system including a plurality of light sources configured to generate illumination and reference beams at a plurality of wavelengths, an illumination system configured to illuminate a target object with the illumination beams, an optical assembly configured to receive a reflected target beam and condition the target beam for recording at an optical imaging system, and a reference system configured to propagate the reference beams to the optical imaging system. The reference beams are interfered with the target beam at the optical imaging system to create interference patterns, which can be recorded in a collective image having a plurality of side lobes. Holographic information in the side lobes can be combined to generate 3D images having a substantially reduced signal to noise ratio.
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