Invention Grant
US08264681B2 Methods and apparatus for remote Raman and laser-induced breakdown spectrometry
有权
远程拉曼和激光诱导击穿光谱法的方法和装置
- Patent Title: Methods and apparatus for remote Raman and laser-induced breakdown spectrometry
- Patent Title (中): 远程拉曼和激光诱导击穿光谱法的方法和装置
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Application No.: US12639393Application Date: 2009-12-16
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Publication No.: US08264681B2Publication Date: 2012-09-11
- Inventor: Anupam Kumar Misra , Shiv Kumar Sharma , Paul Grandmont Lucey
- Applicant: Anupam Kumar Misra , Shiv Kumar Sharma , Paul Grandmont Lucey
- Applicant Address: US HI Honolulu
- Assignee: University of Hawaii
- Current Assignee: University of Hawaii
- Current Assignee Address: US HI Honolulu
- Agency: Foley & Lardner LLP
- Agent Stephen E. Reiter
- Main IPC: G01J3/44
- IPC: G01J3/44

Abstract:
An spectrometer including Raman and LIBS spectroscopy capabilities is disclosed. The spectrometer includes a laser source configurable to produce a lased light directable towards a target substance, the laser source having a single wavelength and having sufficient power to cause a portion of the target to emit Raman scattering and sufficient to ablate a portion of the target substance to produce a plasma plume. A separate remote light collector is optically configurable to collect light emitted from the portion of the target emitting Raman scattering and from the portion of the target producing the plasma plume. A filter is optically coupled to the remote light collector to remove reflected light and Rayleigh-scattered light, and a spectroscope is optically coupled to the filter and configured to separate the collected and filtered light into a frequency spectrum comprising a Raman spectrum and a laser-induced breakdown spectrum. Finally, an electronic light sensor is used to record the frequency spectrum.
Public/Granted literature
- US20100171951A1 METHODS AND APPARATUS FOR REMOTE RAMAN AND LASER-INDUCED BREAKDOWN SPECTROMETRY Public/Granted day:2010-07-08
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