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Title: Laser pulse detector

Abstract

A laser pulse detector is provided which is small and inexpensive and has the capability of detecting laser light of any wavelength with fast response (less than 5 nanoseconds rise time). The laser beam is focused onto the receiving end of a graphite rod coaxially mounted within a close-fitting conductive, open-end cylindrical housing so that ablation and electric field breakdown of the resulting plasma occurs due to a bias potential applied between the graphite rod and housing. The pulse produced by the breakdown is transmitted through a matched impedance coaxial cable to a recording device. The cable is connected with its central lead to the graphite rod and its outer conductor to the housing.

Inventors:
 [1];  [1]
  1. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863826
Patent Number(s):
4254332
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
laser; pulse; detector; provided; inexpensive; capability; detecting; light; wavelength; fast; response; nanoseconds; rise; time; beam; focused; receiving; graphite; rod; coaxially; mounted; close-fitting; conductive; open-end; cylindrical; housing; ablation; electric; field; breakdown; resulting; plasma; occurs; due; bias; potential; applied; produced; transmitted; matched; impedance; coaxial; cable; recording; device; connected; central; lead; outer; conductor; bias potential; occurs due; coaxially mounted; potential applied; pulse detector; cylindrical housing; outer conductor; laser pulse; electric field; laser beam; laser light; coaxial cable; fast response; rise time; resulting plasma; /250/

Citation Formats

Mashburn, Douglas N., and Akerman, M. Alfred. Laser pulse detector. United States: N. p., 1981. Web.
Mashburn, Douglas N., & Akerman, M. Alfred. Laser pulse detector. United States.
Mashburn, Douglas N., and Akerman, M. Alfred. Thu . "Laser pulse detector". United States. https://www.osti.gov/servlets/purl/863826.
@article{osti_863826,
title = {Laser pulse detector},
author = {Mashburn, Douglas N. and Akerman, M. Alfred},
abstractNote = {A laser pulse detector is provided which is small and inexpensive and has the capability of detecting laser light of any wavelength with fast response (less than 5 nanoseconds rise time). The laser beam is focused onto the receiving end of a graphite rod coaxially mounted within a close-fitting conductive, open-end cylindrical housing so that ablation and electric field breakdown of the resulting plasma occurs due to a bias potential applied between the graphite rod and housing. The pulse produced by the breakdown is transmitted through a matched impedance coaxial cable to a recording device. The cable is connected with its central lead to the graphite rod and its outer conductor to the housing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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