Abstract

A novel application of a tuneable Ti: sapphire laser and a CdTe a Rayleigh line rejection filter for near-infrared Raman spectroscopy employing a single grating spectrograph and multichannel detection is demonstrated. Raman spectra of liquid, solid, and photobiological samples have been measured within 75 cm⁻¹ of the exciting laser line. At excitation wavelengths between 790 and 850 mm, a significant improvement in sensitivity over that for present Fourier transform Raman techniques has been obtained.

Rayleigh rejection filters for 193-nm ArF laser Raman spectroscopy

Robert L. McKenzie
Opt. Lett. 18(12) 995-997 (1993)

An Interferometric Rejection Filter for Raman Spectroscopy

W. Proffitt, L. M. Fraas, P. Cervenka, and S. P. S. Porto
Appl. Opt. 10(3) 531-534 (1971)

Premonochromator for stray light rejection in Raman spectroscopy

Jacob Fellman and Peter Lindblom
Appl. Opt. 16(4) 1085-1087 (1977)

Ultralow frequency Stokes and anti-Stokes Raman spectroscopy of single living cells and microparticles using a hot rubidium vapor filter

Jinda Lin and Yong-qing Li
Opt. Lett. 39(1) 108-110 (2014)

Multi-excitation Raman spectroscopy technique for fluorescence rejection

Scott T. McCain, Rebecca M. Willett, and David J. Brady
Opt. Express 16(15) 10975-10991 (2008)