Invention Grant
- Patent Title: Optical modulator using the spin hall effect in metals
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Application No.: US16173724Application Date: 2018-10-29
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Publication No.: US10663773B2Publication Date: 2020-05-26
- Inventor: Olaf M. J. van 't Erve , Connie H. Li , Berend T. Jonker , Aubrey T. Hanbicki , Kathleen M. Mccreary
- Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
- Applicant Address: US DC Washington
- Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
- Current Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
- Current Assignee Address: US DC Washington
- Agency: US Naval Research Laboratory
- Agent Roy Roberts
- Main IPC: G02F1/01
- IPC: G02F1/01 ; G02F1/035
Abstract:
The spin-Hall effect can be used to modulate the linear polarization of light via the magneto-optical Kerr effect. A central area of an outer surface of an added layer atop a spin Hall material is illuminated while simultaneously passing a modulated electric current through the material, so that reflected light has a new linear polarization that differs from the initial linear polarization to a degree depending on the amplitude of the modulated electric current.
Public/Granted literature
- US20190064553A1 Optical Modulator Using the Spin Hall Effect in Metals Public/Granted day:2019-02-28
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