Electro-Optical Sensing Apparatus and Method for Characterizing Free-Space Electromagnetic Radiation
Abstract
Apparatus and methods for characterizing free-space electromagnetic energy, and in particular, apparatus/method suitable for real-time two-dimensional far-infrared imaging applications are presented. The sensing technique is based on a non-linear coupling between a low-frequency electric field and a laser beam in an electro-optic crystal. In addition to a practical counter-propagating sensing technique, a co-linear approach is described which provides longer radiated field--optical beam interaction length, thereby making imaging applications practical.
- Inventors:
- Issue Date:
- Research Org.:
- Rensselaer Polytechnic Institute, Troy, NY (US)
- Sponsoring Org.:
- USDOE Office of Environmental Management (EM) (US)
- OSTI Identifier:
- 833452
- Patent Number(s):
- 5952818
- Application Number:
- R&D Project: EMSP 65004; 08/739,099; TRN: US200430%%1489
- Assignee:
- DOEEMSP
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 14 Sep 1999
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; 54 ENVIRONMENTAL SCIENCES; ELECTRIC FIELDS; ELECTROMAGNETIC RADIATION; LASERS
Citation Formats
Zhang, Xi-Cheng, Libelo, Louis Francis, and Wu, Qi. Electro-Optical Sensing Apparatus and Method for Characterizing Free-Space Electromagnetic Radiation. United States: N. p., 1999.
Web.
Zhang, Xi-Cheng, Libelo, Louis Francis, & Wu, Qi. Electro-Optical Sensing Apparatus and Method for Characterizing Free-Space Electromagnetic Radiation. United States.
Zhang, Xi-Cheng, Libelo, Louis Francis, and Wu, Qi. Tue .
"Electro-Optical Sensing Apparatus and Method for Characterizing Free-Space Electromagnetic Radiation". United States. https://www.osti.gov/servlets/purl/833452.
@article{osti_833452,
title = {Electro-Optical Sensing Apparatus and Method for Characterizing Free-Space Electromagnetic Radiation},
author = {Zhang, Xi-Cheng and Libelo, Louis Francis and Wu, Qi},
abstractNote = {Apparatus and methods for characterizing free-space electromagnetic energy, and in particular, apparatus/method suitable for real-time two-dimensional far-infrared imaging applications are presented. The sensing technique is based on a non-linear coupling between a low-frequency electric field and a laser beam in an electro-optic crystal. In addition to a practical counter-propagating sensing technique, a co-linear approach is described which provides longer radiated field--optical beam interaction length, thereby making imaging applications practical.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 14 00:00:00 EDT 1999},
month = {Tue Sep 14 00:00:00 EDT 1999}
}
Works referenced in this record:
Coherent detection of freely propagating terahertz radiation by electro‐optic sampling
journal, January 1996
- Nahata, Ajay; Auston, David H.; Heinz, Tony F.
- Applied Physics Letters, Vol. 68, Issue 2
Free‐space radiation from electro‐optic crystals
journal, February 1990
- Hu, B. B.; Zhang, X. ‐C.; Auston, D. H.
- Applied Physics Letters, Vol. 56, Issue 6
Broadband detection capability of ZnTe electro‐optic field detectors
journal, May 1996
- Wu, Q.; Litz, M.; Zhang, X. ‐C.
- Applied Physics Letters, Vol. 68, Issue 21
Interferometric characterization of 160 fs far‐infrared light pulses
journal, August 1991
- Greene, B. I.; Federici, J. F.; Dykaar, D. R.
- Applied Physics Letters, Vol. 59, Issue 8
Ultrafast electro‐optic field sensors
journal, March 1996
- Wu, Q.; Zhang, X. ‐C.
- Applied Physics Letters, Vol. 68, Issue 12
Free‐space electro‐optic sampling of terahertz beams
journal, December 1995
- Wu, Q.; Zhang, X. ‐C.
- Applied Physics Letters, Vol. 67, Issue 24
Chemistry is right for T-ray imaging
journal, March 1996
- Nuss, M. C.
- IEEE Circuits and Devices Magazine, Vol. 12, Issue 2
Detection of High Power THz Pulses by Phase Retardation in an Electro-Optic Crystal
book, January 1996
- Uhd Jepsen, P.; Schall, M.; Schyja, V.
- Ultrafast Processes in Spectroscopy
Imaging with terahertz waves
journal, January 1995
- Hu, B. B.; Nuss, M. C.
- Optics Letters, Vol. 20, Issue 16