Raman spectrum acquisition system with low background noise
A Raman spectrum and acquisition system technology, applied in Raman scattering, material excitation analysis, etc., can solve the problems of Raman spectrum information flooding and interference, and achieve the effects of reducing interference, increasing luminous flux, and improving signal-to-noise ratio
Inactive Publication Date: 2015-09-09
TIANJIN UNIV
6 Cites 1 Cited by
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Abstract
The invention discloses a Raman spectrum acquisition system with low background noise. By collecting side Raman scattering beams, the Raman spectrum acquisition system acquires a Raman spectrum with low background noise. Through non-coaxial design of excitation light path and Raman scattering light collecting light path, the invention overcomes the problem that the traditional Raman spectrum acquisition system is likely to be interfered by excitation beam dominated strong background noise while collecting forward or backward or Raman scattering beams. At the same time, by means of vertically downward incidence of excitation beams from the position over a sample, a linear excited region can be configured, and the linear excited region matches with a slit in height. The Raman spectrum acquisition system provided by the invention makes full use of the effective range of an array detector's detection surface, increases the luminous flux of Raman scattering beams incident to the array detector, and enhances the signal to noise ratio.
Application Domain
Raman scattering
Technology Topic
Optical pathPhysics +7
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