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Abstract

A Raman spectrometer includes a laser, a lens, a dichroscope, a confocal microscope, an optical system, a Fabri-Perot tunable filter and a silicon detector. The light emitted by the laser impinges on the dichroscope after passing through the lens. The dichroscope reflects the light, and the reflected light impinges on a sample through the confocal microscope. The light generates a Rayleigh scattering and a Raman scattering upon reaching the sample, scattered light generating the Rayleigh scattering and the scattered light generating the Raman scattering impinge on the dichroscope again after passing through the confocal microscope. The Raman scattered light transmitted by the dichroscope passes through the optical system and the Fabri-Perot tunable filter successively, and the light passing through the Fabri-Perot tunable filter is detected by the silicon detector to obtain a light signal. The Raman spectrometer has the advantages of small volume and low cost.

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First Claim