Deep ultraviolet laser Raman spectrometer

The invention relates to a deep ultraviolet laser Raman spectrometer, which mainly comprises four parts such as a deep ultraviolet laser excitation light source, a deep ultraviolet vacuum optical path system, a deep ultraviolet vacuum light splitting system and a deep ultraviolet region signal acquisition/data processing system, wherein continuous and adjustable deep ultraviolet laser with wavelengths of 177.3 nm and 193-210 nm is adopted as an excitation light source, scattered light is collected through the deep ultraviolet region elliptical spherical mirror in a vacuum chamber, the deep ultraviolet vacuum light splitting system uses a vacuum triple grating deep ultraviolet spectrometer arranged in a triangle shape manner so as to obtain the deep ultraviolet Raman spectrogram with the cutoff wave number of less than 200 cm, and the Raman spectroscopy is detected by a photoelectric coupled device having deep ultraviolet region response. According to the present invention, the deep ultraviolet laser in the 177.3 nm and 193-210 nm region can be adopted as the excitation light source to acquire information in the fields of the vibration state, the electronic states and the electronic vibration coupling so as to be expected to provide important effects in the fields of catalytic materials, optoelectronic materials and biological science.