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    • 4. 发明申请
    • Method and apparatus for conducting RAMAN spectroscopy using a remote optical probe
    • US20070024848A1
    • 2007-02-01
    • US11484534
    • 2006-07-11
    • Kevin KnoppLeyun ZhuDaryoosh Vakhshoori
    • Kevin KnoppLeyun ZhuDaryoosh Vakhshoori
    • G01J3/44G01N21/65
    • G01J3/02G01J3/0218G01J3/0297G01N21/65G01N2021/656G02B6/032
    • An optical probe assembly for conveying Raman pump light to a specimen and for conveying a Raman signature from the specimen to an optical spectrum analyzer, the optical probe assembly comprising a light guide, wherein the light guide comprises a core region and a surrounding cladding region, wherein the core region is constructed so as to minimize the creation of a relatively broadband spurious background noise signal when conveying the Raman pump light to the specimen, and the cladding region is constructed so as to satisfy the wave guiding reflection requirements of the Raman pump light and the Raman signature. A Raman spectroscopy system comprising: a laser for producing Raman pump light; an optical probe assembly for conveying the Raman pump light to a specimen and for conveying a Raman signature from the specimen to an optical spectrum analyzer, the optical probe assembly comprising a light guide, wherein the light guide comprises a core region and a surrounding cladding region, wherein the core region is constructed so as to minimize the creation of a relatively broadband spurious background noise signal when conveying the Raman pump light to the specimen, and the cladding region is constructed so as to satisfy wave guiding reflection requirements of the Raman pump light and the Raman signature; and an optical spectrum analyzer for receiving the Raman signature of a specimen and identifying and characterizing the specimen based upon the spectrum of the Raman signature. A method for conducting Raman spectroscopy comprising: producing Raman pump light; conveying the Raman pump light through an optical probe assembly to a specimen and conveying a Raman signature from the specimen through the optical probe assembly to an optical spectrum analyzer, the optical probe assembly comprising a light guide, wherein the light guide comprises a core region and a surrounding cladding region, wherein the core region is constructed so as to minimize the creation of a relatively broadband spurious background noise signal when conveying the Raman pump light to the specimen, and the cladding region is constructed so as to satisfy wave guiding reflection requirements of the Raman pump light and the Raman signature; and identifying and characterizing the specimen based upon the spectrum of the Raman signature.