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Title: Ultraviolet laser beam monitor using radiation responsive crystals

Abstract

An apparatus and method for monitoring an ultraviolet laser beam includes disposing in the path of an ultraviolet laser beam a substantially transparent crystal that will produce a color pattern in response to ultraviolet radiation. The crystal is exposed to the ultraviolet laser beam and a color pattern is produced within the crystal corresponding to the laser beam intensity distribution therein. The crystal is then exposed to visible light, and the color pattern is observed by means of the visible light to determine the characteristics of the laser beam that passed through crystal. In this manner, a perpendicular cross sectional intensity profile and a longitudinal intensity profile of the ultraviolet laser beam may be determined. The observation of the color pattern may be made with forward or back scattered light and may be made with the naked eye or with optical systems such as microscopes and television cameras.

Inventors:
 [1];  [2]
  1. Oliver Springs, TN
  2. Knoxville, TN
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
866798
Patent Number(s):
4792690
Assignee:
University of Tennessee Research Corporation (Knoxville, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ultraviolet; laser; beam; monitor; radiation; responsive; crystals; apparatus; method; monitoring; disposing; path; substantially; transparent; crystal; produce; color; pattern; response; exposed; produced; corresponding; intensity; distribution; therein; visible; light; observed; means; determine; characteristics; passed; manner; perpendicular; sectional; profile; longitudinal; determined; observation; forward; scattered; naked; eye; optical; systems; microscopes; television; cameras; substantially transparent; television camera; optical systems; beam intensity; ultraviolet radiation; scattered light; laser beam; visible light; ultraviolet laser; intensity profile; intensity distribution; radiation responsive; transparent crystal; television cameras; beam monitor; /250/

Citation Formats

McCann, Michael P, and Chen, Chung H. Ultraviolet laser beam monitor using radiation responsive crystals. United States: N. p., 1988. Web.
McCann, Michael P, & Chen, Chung H. Ultraviolet laser beam monitor using radiation responsive crystals. United States.
McCann, Michael P, and Chen, Chung H. Fri . "Ultraviolet laser beam monitor using radiation responsive crystals". United States. https://www.osti.gov/servlets/purl/866798.
@article{osti_866798,
title = {Ultraviolet laser beam monitor using radiation responsive crystals},
author = {McCann, Michael P and Chen, Chung H},
abstractNote = {An apparatus and method for monitoring an ultraviolet laser beam includes disposing in the path of an ultraviolet laser beam a substantially transparent crystal that will produce a color pattern in response to ultraviolet radiation. The crystal is exposed to the ultraviolet laser beam and a color pattern is produced within the crystal corresponding to the laser beam intensity distribution therein. The crystal is then exposed to visible light, and the color pattern is observed by means of the visible light to determine the characteristics of the laser beam that passed through crystal. In this manner, a perpendicular cross sectional intensity profile and a longitudinal intensity profile of the ultraviolet laser beam may be determined. The observation of the color pattern may be made with forward or back scattered light and may be made with the naked eye or with optical systems such as microscopes and television cameras.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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