Invention Grant
- Patent Title: Optical detection of an object in a turbid medium using an optical vortex
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Application No.: US15923016Application Date: 2018-03-16
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Publication No.: US10725154B2Publication Date: 2020-07-28
- Inventor: Brandon Cochenour , Lila Rodgers , Alan Edward Laux , Linda Mullen
- Applicant: United States of America, as represented by the Secretary of the Navy
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Secretary of the Navy
- Current Assignee: The United States of America as represented by the Secretary of the Navy
- Current Assignee Address: US DC Washington
- Agency: NAWCAD
- Agent Mark. O. Glut; Olivia R. Scheur
- Main IPC: G01S7/00
- IPC: G01S7/00 ; G01S7/48 ; G01S7/4865 ; G01S17/10 ; G01S7/4861 ; G01S7/484

Abstract:
A method and system for imaging in degraded visual environments. The system includes a laser that is positioned to transmit a Gaussian beam toward a target object located within the degraded visual environment. An optical receiver is positioned to receive return signals. A helical phase element is positioned between the target object and the optical receiver. The return signals pass through the helical phase element. The helical phase element separates coherent and incoherent light by imparting orbital angular momentum on the coherent returns to form an optical vortex.
Public/Granted literature
- US20190285731A1 OPTICAL DETECTION OF AN OBJECT IN A TURBID MEDIUM USING AN OPTICAL VORTEX Public/Granted day:2019-09-19
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