Coherent Anti-Stokes Raman Scattering (CARS)

Broadband ultrafast lasers to expand Raman-based measurements

About Coherent Anti-Stokes Raman Scattering (CARS)

Both Coherent Anti-Stokes Raman Scattering (CARS) and Stimulated Raman Scattering (SRS) are both based on coherent Raman scattering processes and are spectroscopic methods sensitive to vibrational signatures of molecules similar to standard Raman spectroscopy. As CARS uses photons of two different colors to address the molecular vibration, it needs to be done either by tuning the wavelength of either of these beams or by broadband ultrafast lasers, so it creates a resonantly enhanced signal at a third wavelength when the frequency difference of these two photons coincides with a Raman resonance giving vibrational contrast.


Novanta’s expertise enables Raman-based measurements going beyond the standard:


  • Ultrafast few-cycle lasers with broadband and even octave spanning spectra
  • High repetition rate laser systems enabling efficient Dual-Comb Coherent Anti-Stokes Raman Scattering (DC-CARS) spectroscopy
Scientific Research & Development

Take your experiment to the cutting edge of research