Lasers for Raman Spectroscopy
The ”inelastic scattering of light,” or Raman effect, was observed in practice for the first time in 1928 by C.V. Raman for which he was awarded the Nobel Prize in 1930. In Raman spectroscopy an incident laser beam (in the UV visible-near IR spectral range) is frequency shifted by this inelastic scattering in the material or substance studied.
Cobolt DPSS lasers are perfectly suited for demanding Raman spectroscopy applications. Stable single-frequency operation combined with the ultra-robust thermo-mechnical architecture of HTCure provides narrow linewidth (<1MHz), extremely low spectral drift (<2 pm over 8 hs) and a spectral purity better than 60 dB, which allows for very high resolution Raman spectroscopy and a possibility to detect low frequency Raman signals even down in the THz regime.
HÜBNER Photonics’ single frequency tunable laser, with output in the region 450 nm – 650 nm offers the perfect flexibility to select the exact wavelength for exposures, either as a stand alone laser source or as a 4th laser source in an RGB set-up.