RAMAN SCATTERING SPECTROPHOTOMETER ACHIEVING SIMULTANEOUS MEASUREMENT OF STOKES PEAK AND ANTI-STOKES PEAK BY CONSTRUCTION OF TWO-OPTICAL PATH

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive, high-performance device by providing a device combining a low-pass filter and a high-pass filter since an extremely expensive and low-performance notch filter had to be used to simultaneously measure Raman scattered light of Stokes and Anti-Stokes from a measurement target.SOLUTION: Light from a measurement target is separated into two optical paths, and each light is passed through a low-pass filter and a high-pass filter and is allowed to impinge on a spectroscope by allowing positions to differ. Images of light impinging on the spectroscope by allowing positions to differ are formed at different places of a two-dimensional photodetector, thus allowing Stokes and Anti-Stokes to be observed simultaneously.