Compact 266nm short-wave ultraviolet Raman spectrometer
A 266nm, ultraviolet Raman technology, applied in the field of spectral analysis, can solve the problems of affecting the test sensitivity, affecting the detection accuracy, and reducing the sensitivity, so as to improve the light transmission efficiency, improve the signal-to-noise ratio, and reduce the effect of fluorescence
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[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] combine figure 1 , The present invention is a compact 266nm short-wave ultraviolet Raman spectrometer, including A light source, B external optical path, C dispersion system, D receiving system, E signal acquisition system, and the dispersion system is connected with the external optical path through a coupling fiber and a shaping fiber bundle. The light source is an all-solid-state 266nm short-wave UV laser pumped by a diode 1; the external light path is a collimating lens 2, a first reflecting mirror 3, a dichroic mirror 4, a beam expander 5, a filter 6, and a relay lens 7 , a coupling fiber 8 and a shaping fiber bundle 9; the dispersion system is composed of a slit 10, a second mirror 11, an off-axis parabolic mirror 12 and a plane reflection grating 13; the receiving system is a back-illuminated CCD line array sensor 14; The signal ac...
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