Method for identifying and probing phase transitions in materials
Abstract
The present invention includes a method for identifying and probing phase transitions in materials. A polymorphic material capable of existing in at least one non-centrosymmetric phase is interrogated with a beam of laser light at a chosen wavelength and frequency. A phase transition is induced in the material while it is interrogated. The intensity of light scattered by the material and having a wavelength equal to one half the wavelength of the interrogating laser light is detected. If the phase transition results in the production of a non-centrosymmetric phase, the intensity of this scattered light increases; if the phase transition results in the disappearance of a non-centrosymmetric phase, the intensity of this scattered light decreases.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 874805
- Patent Number(s):
- 6465255
- Assignee:
- The Regents of the University of California (Los Alamos, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; identifying; probing; phase; transitions; materials; polymorphic; material; capable; existing; non-centrosymmetric; interrogated; beam; laser; light; chosen; wavelength; frequency; transition; induced; intensity; scattered; equal; half; interrogating; detected; results; production; increases; disappearance; decreases; laser light; phase transition; /436/252/356/
Citation Formats
Asay, Blaine W, Henson, Bryan F, Sander, Robert K, Robinson, Jeanne M, Son, Steven F, and Dickson, Peter M. Method for identifying and probing phase transitions in materials. United States: N. p., 2002.
Web.
Asay, Blaine W, Henson, Bryan F, Sander, Robert K, Robinson, Jeanne M, Son, Steven F, & Dickson, Peter M. Method for identifying and probing phase transitions in materials. United States.
Asay, Blaine W, Henson, Bryan F, Sander, Robert K, Robinson, Jeanne M, Son, Steven F, and Dickson, Peter M. Tue .
"Method for identifying and probing phase transitions in materials". United States. https://www.osti.gov/servlets/purl/874805.
@article{osti_874805,
title = {Method for identifying and probing phase transitions in materials},
author = {Asay, Blaine W and Henson, Bryan F and Sander, Robert K and Robinson, Jeanne M and Son, Steven F and Dickson, Peter M},
abstractNote = {The present invention includes a method for identifying and probing phase transitions in materials. A polymorphic material capable of existing in at least one non-centrosymmetric phase is interrogated with a beam of laser light at a chosen wavelength and frequency. A phase transition is induced in the material while it is interrogated. The intensity of light scattered by the material and having a wavelength equal to one half the wavelength of the interrogating laser light is detected. If the phase transition results in the production of a non-centrosymmetric phase, the intensity of this scattered light increases; if the phase transition results in the disappearance of a non-centrosymmetric phase, the intensity of this scattered light decreases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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