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Doubled Multiplexing in Fourier Transform Raman Spectroscopy

Volume 44, Number 3 (April 1990) Page 414-418

Radziszewski, Juliusz G.; Michl, Josef


The use of a Chevron filter for the rejection of light at the 1064-nm excitation wavelength permits the simultaneous detection of Stokes and anti-Stokes Raman lines (doubled multiplexing). This enhances spectrometric and photometric accuracy and permits a measurement of the true vibrational temperature of the sample. Down to Raman shifts as low as 40 cm−1, near-IR Raman spectra recorded on an optimized Nicolet SXR 60 instrument are distinctly superior to previously reported spectra of similar samples recorded on FT or, more slowly, on dispersive instruments.