System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors
Abstract
A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude-modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1107603
- Patent Number(s):
- 8563930
- Application Number:
- 12/426,143
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03C - MODULATION
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Harris, John Richardson, Caporaso, George J, and Sampayan, Stephen E. System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors. United States: N. p., 2013.
Web.
Harris, John Richardson, Caporaso, George J, & Sampayan, Stephen E. System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors. United States.
Harris, John Richardson, Caporaso, George J, and Sampayan, Stephen E. Tue .
"System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors". United States. https://www.osti.gov/servlets/purl/1107603.
@article{osti_1107603,
title = {System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors},
author = {Harris, John Richardson and Caporaso, George J and Sampayan, Stephen E},
abstractNote = {A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude-modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 22 00:00:00 EDT 2013},
month = {Tue Oct 22 00:00:00 EDT 2013}
}
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Works referenced in this record:
High gradient induction accelerator
conference, June 2007
- Caporaso, George J.; Sampayan, S.; Chen, Y-J.
- 2007 IEEE Particle Accelerator Conference (PAC)
Electro-Optical Device for Producing a Modulated Voltage
patent, June 1965
- Kimmelman, Nelson E.
- US Patent Document 3,192,387
Triode cathode apparatus and method of making a triode cathode apparatus
patent, February 2011
- Dijon, Jean; Meyer, Robert; Levy, Francois
- US Patent Document 7,880,375
Soliton generation at 10 MW level in the very high frequency band
journal, March 1991
- Ikezi, H.; DeGrassie, J. S.; Drake, J.
- Applied Physics Letters, Vol. 58, Issue 9
4H-SiC continuous wave SITs
conference, January 1999
- Siergiej, R. R.; Bojko, R. J.; Clarke, R. C.
- 1999 57th Annual Device Research Conference Digest (Cat. No.99TH8393)
Electron beam modulation using a laser-driven photocathode
journal, July 2003
- Neumann, J. G.; O’Shea, P. G.; Demske, D.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 507, Issue 1-2
Electron Switching Device
patent, August 1957
- Rittner, Edmund S.; Grace, Frank E.; Fine, Samuel
- US Patent Document 2803779
Longitudinal density modulation and energy conversion in intense beams
journal, August 2007
- Harris, J. R.; Neumann, J. G.; Tian, K.
- Physical Review E, Vol. 76, Issue 2
Grid-cathode controlled X-ray tube
patent, August 1978
- Albert, Richard D.
- US Patent Document 4,104,526
Compound semiconductor radiation detectors
journal, September 2004
- Owens, Alan; Peacock, A.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 531, Issue 1-2
Short pulse photoemission from a dispenser cathode
journal, March 1991
- Bergeret, H.; Boussoukaya, M.; Chehab, R.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 301, Issue 3
Review of high-power microwave source research
journal, November 1997
- Gold, Steven H.; Nusinovich, Gregory S.
- Review of Scientific Instruments, Vol. 68, Issue 11
Production of photoemission-modulated beams in a thermionic electron gun
journal, March 2005
- Neumann, J. G.; Harris, J. R.; Quinn, B.
- Review of Scientific Instruments, Vol. 76, Issue 3
Optically Initiated Silicon Carbide High Voltage Switch
patent-application, April 2007
- Caporaso, George J.; Sampayan, Stephen E.; Sullivan, James S.
- US Patent Application 11/586468; 20070092812
6H-SiC photoconductive switches triggered at below bandgap wavelengths
journal, August 2007
- Sullivan, J. S.; Stanley, J. R.
- IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 14, Issue 4
Organic triodes with novel grid structures and method of production
patent, May 2011
- Baldo, Marc A.; Peumans, Peter; Forrest, Stephen R.
- US Patent Document 7,943,419
Optically-triggered Power Transistor (OTPT) for Fly-by-light (FBL) and EMI-susceptible Power Electronics
conference, January 2006
- Mazumder, S. K.; Sarkar, T.
- 37th IEEE Power Electronics Specialists Conference
Photodetector and method of driving the same
patent, October 2002
- Ogimoto, Yasushi; Nakanishi, Kenji; Kojima, Kunio
- US Patent Document 6,469,292
Experimental investigation of a light-controlled nonlinear scatterer
journal, April 2001
- Kashin, A. V.; Umnov, A. L.; Yashnov, V. A.
- Technical Physics Letters, Vol. 27, Issue 4