skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis

Abstract

A fiber optic laser-induced breakdown spectroscopy (LIBS) sensor, including a laser light source, a harmonic separator for directing the laser light, a dichroic mirror for reflecting the laser light, a coupling lens for coupling the laser light at an input of a multimode optical fiber, a connector for coupling the laser light from an output of the multimode optical fiber to an input of a high temperature holder, such as a holder made of stainless steel, and a detector portion for receiving emission signal and analyzing LIBS intensities. In one variation, the multimode optical fiber has silica core and silica cladding. The holder includes optical lenses for collimating and focusing the laser light in a molten alloy to produce a plasma, and for collecting and transmitting an emission signal to the multimode optical fiber.

Inventors:
; ; ;
Issue Date:
Research Org.:
Mississippi State Univ., Mississippi State, MS (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174946
Patent Number(s):
6762835
Application Number:
10/098,368
Assignee:
Mississippi State University (Mississippi State, MS)
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
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
FC26-98FT40395
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Zhang, Hansheng, Rai, Awadesh K., Singh, Jagdish P., and Yueh, Fang-Yu. Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis. United States: N. p., 2004. Web.
Zhang, Hansheng, Rai, Awadesh K., Singh, Jagdish P., & Yueh, Fang-Yu. Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis. United States.
Zhang, Hansheng, Rai, Awadesh K., Singh, Jagdish P., and Yueh, Fang-Yu. Tue . "Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis". United States. https://www.osti.gov/servlets/purl/1174946.
@article{osti_1174946,
title = {Fiber optic laser-induced breakdown spectroscopy sensor for molten material analysis},
author = {Zhang, Hansheng and Rai, Awadesh K. and Singh, Jagdish P. and Yueh, Fang-Yu},
abstractNote = {A fiber optic laser-induced breakdown spectroscopy (LIBS) sensor, including a laser light source, a harmonic separator for directing the laser light, a dichroic mirror for reflecting the laser light, a coupling lens for coupling the laser light at an input of a multimode optical fiber, a connector for coupling the laser light from an output of the multimode optical fiber to an input of a high temperature holder, such as a holder made of stainless steel, and a detector portion for receiving emission signal and analyzing LIBS intensities. In one variation, the multimode optical fiber has silica core and silica cladding. The holder includes optical lenses for collimating and focusing the laser light in a molten alloy to produce a plasma, and for collecting and transmitting an emission signal to the multimode optical fiber.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {7}
}

Patent:

Save / Share: