[Studies of interference source in laser Raman spectra of near infrared].
Many abnormal peaks in laser Raman spectra were found in determinations with laser illuminant of 785. 18 nm. After studies, it was found that the notch filter caused the interferences and the characteristics of the band pass filter were not good. The absorption spectral characteristics of notch filter were studied for the new and old of band pass filters.
Liu
Wen-Han
WH
College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China.
Mao
Xin-Biao
XB
Ma
Chun-An
CA