Apparatus and method for producing a calibrated raman spectrum

G - Physics – 01 – N

Patent

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G01N 21/65 (2006.01) G01J 3/44 (2006.01)

Patent

CA 2579958

An apparatus (100) for generating a Raman signal of a test sample (130) is disclosed. The apparatus (100) includes a first optical path (260), a second optical path (265), a first station (115), and a second station (125). The first optical path (260) is adapted for coupling with a radiation source (105) that produces a test beam (110) at the first optical path (260). The first station (115) is responsive to the test beam (110) and is adapted to house a test standard (120). The second station (125) is responsive to the test beam (110) and is adapted to house the test sample (130). In response to the test beam (110), Raman radiation from the test standard (120) and the test sample (130) are combined and directed to the second optical path (265), which is adapted for coupling with a spectrometer (140) and a detector (135) for producing a Raman spectrum of the test sample (130).

L'invention décrit un dispositif (100) destiné à générer un signal à effet Raman d'un échantillon de test (130). Le dispositif (100) comprend un premier trajet optique (260), un second trajet optique (265), une première station (115) et une seconde station (125). Le premier trajet optique (260) est conçu pour réaliser un couplage avec une source de rayonnement (105) qui produit un faisceau de test (110) au niveau du premier trajet optique (260). La première station (115) est sensible au faisceau de test (110) et est conçue pour loger un étalon de test (120). La seconde station (125) est sensible au faisceau de test (110) et est conçue pour loger l'échantillon de test (130). En réponse au faisceau de test (110), des rayonnements à effet Raman provenant de l'étalon de test (120) et de l'échantillon de test (130) sont combinés et dirigés vers le second trajet optique (265), lequel est conçu pour réaliser un couplage avec un spectromètre (140) et un détecteur (135) afin de produire un spectre Raman de l'échantillon de test (130).

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