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Title: Photoconductive device with optical concentrator

Abstract

A photonic device having wide bandgap (WBG) materials which change electrical behaviors in response to low-intensity light is disclosed. The device comprises an optical waveguide located in an optical path of light to receive the light and to spatially confine the received light as guided light at a higher optical intensity than the received light; a wide bandgap (WBG) material located in an optical path of the guided light output by the optical waveguide; and two electrodes formed at two different locations on the WBG material to provide two electrical contacts of an electrical path within the WBG material, wherein the WBG material exhibits an electrical conductivity that varies with a level of the guided light output by the optical waveguide to turn on or off the electrical path between the two electrodes.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568533
Patent Number(s):
10,333,010
Application Number:
15/488,058
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/14/2017
Country of Publication:
United States
Language:
English

Citation Formats

Sampayan, Stephen. Photoconductive device with optical concentrator. United States: N. p., 2019. Web.
Sampayan, Stephen. Photoconductive device with optical concentrator. United States.
Sampayan, Stephen. Tue . "Photoconductive device with optical concentrator". United States. https://www.osti.gov/servlets/purl/1568533.
@article{osti_1568533,
title = {Photoconductive device with optical concentrator},
author = {Sampayan, Stephen},
abstractNote = {A photonic device having wide bandgap (WBG) materials which change electrical behaviors in response to low-intensity light is disclosed. The device comprises an optical waveguide located in an optical path of light to receive the light and to spatially confine the received light as guided light at a higher optical intensity than the received light; a wide bandgap (WBG) material located in an optical path of the guided light output by the optical waveguide; and two electrodes formed at two different locations on the WBG material to provide two electrical contacts of an electrical path within the WBG material, wherein the WBG material exhibits an electrical conductivity that varies with a level of the guided light output by the optical waveguide to turn on or off the electrical path between the two electrodes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}

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Works referenced in this record:

High voltage photo switch package module
patent, February 2014


System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors
patent, October 2013


Photoconductive switch module and manufacturing method thereof
patent, July 2004