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Title: Composition analysis by scanning femtosecond laser ultraprobing (CASFLU).

Abstract

The composition analysis by scanning femtosecond ultraprobing (CASFLU) technology scans a focused train of extremely short-duration, very intense laser pulses across a sample. The partially-ionized plasma ablated by each pulse is spectrometrically analyzed in real time, determining the ablated material's composition. The steering of the scanned beam thus is computer directed to either continue ablative material-removal at the same site or to successively remove nearby material for the same type of composition analysis. This invention has utility in high-speed chemical-elemental, molecular-fragment and isotopic analyses of the microstructure composition of complex objects, e.g., the oxygen isotopic compositions of large populations of single osteons in bone.

Inventors:
 [1];  [2];  [3];  [1];  [1]
  1. (Livermore, CA)
  2. (Simi Valley, CA)
  3. (Danveille, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
874556
Patent Number(s):
6414320
Assignee:
The Regents of the University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
composition; analysis; scanning; femtosecond; laser; ultraprobing; casflu; technology; scans; focused; train; extremely; short-duration; intense; pulses; sample; partially-ionized; plasma; ablated; pulse; spectrometrically; analyzed; time; determining; materials; steering; scanned; beam; computer; directed; ablative; material-removal; site; successively; remove; nearby; material; type; utility; high-speed; chemical-elemental; molecular-fragment; isotopic; analyses; microstructure; complex; oxygen; compositions; populations; single; osteons; bone; laser pulse; ionized plasma; /250/216/219/606/

Citation Formats

Ishikawa, Muriel Y., Wood, Lowell L., Campbell, E. Michael, Stuart, Brent C., and Perry, Michael D. Composition analysis by scanning femtosecond laser ultraprobing (CASFLU).. United States: N. p., 2002. Web.
Ishikawa, Muriel Y., Wood, Lowell L., Campbell, E. Michael, Stuart, Brent C., & Perry, Michael D. Composition analysis by scanning femtosecond laser ultraprobing (CASFLU).. United States.
Ishikawa, Muriel Y., Wood, Lowell L., Campbell, E. Michael, Stuart, Brent C., and Perry, Michael D. Tue . "Composition analysis by scanning femtosecond laser ultraprobing (CASFLU).". United States. https://www.osti.gov/servlets/purl/874556.
@article{osti_874556,
title = {Composition analysis by scanning femtosecond laser ultraprobing (CASFLU).},
author = {Ishikawa, Muriel Y. and Wood, Lowell L. and Campbell, E. Michael and Stuart, Brent C. and Perry, Michael D.},
abstractNote = {The composition analysis by scanning femtosecond ultraprobing (CASFLU) technology scans a focused train of extremely short-duration, very intense laser pulses across a sample. The partially-ionized plasma ablated by each pulse is spectrometrically analyzed in real time, determining the ablated material's composition. The steering of the scanned beam thus is computer directed to either continue ablative material-removal at the same site or to successively remove nearby material for the same type of composition analysis. This invention has utility in high-speed chemical-elemental, molecular-fragment and isotopic analyses of the microstructure composition of complex objects, e.g., the oxygen isotopic compositions of large populations of single osteons in bone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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