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US 12,730,006 B2Granted
Raman spectroscopy device
AssigneeShimadzu Corporation
InventorsTomoyo Tao, Tomoki Sasayama, Atsuhiko Otaguro, Ryuta Shibutani
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Abstract
A Raman spectroscopy device includes a first spectrometer, a second spectrometer, and a photodetector. First spectrometer disperses first Raman scattered light. Second spectrometer disperses second Raman scattered light having a shorter wavelength than first Raman scattered light. Photodetector receives first Raman scattered light and second Raman scattered light. Second spectrometer is formed from a greater number of spectral optical elements than first spectrometer.
Claims5
A Raman spectroscopy device comprising:
- a spectroscopic optical system;
- and
- a photodetector, wherein
- the spectroscopic optical system includes a first spectrometer for angularly dispersing first Raman scattered light that is emitted from a sample when the sample is irradiated with a first excitation light beam, and a second spectrometer for angularly dispersing second Raman scattered light that is emitted from the sample when the sample is irradiated with a second excitation light beam having a shorter wavelength than the first excitation light beam, the second Raman scattered light having a shorter wavelength than the first Raman scattered light,
- the photodetector receives the first Raman scattered light and the second Raman scattered light output from the spectroscopic optical system,
- the second spectrometer is formed from a greater number of angular dispersive elements than the first spectrometer,
- the first spectrometer is arranged on a first light path of the first Raman scattered light and is not arranged on a second light path of the second Raman scattered light, and
- the second spectrometer is arranged on the second light path of the second Raman scattered light and is not arranged on the first light path of the first Raman scattered light.
5 more elements
Dependencies are inferred from the claim text.