Using Ultrafast Laser in FT-CARS

Using Ultrafast Laser in FT-CARS

A published paper by Hashimoto et al. (2018), entitled “Ultra-Broadband Rapid-Scan Fourier-Transform CARS Spectroscopy with Sub-10-fs Optical Pulses”, leverages the benefits of products from Novanta. The experimental set-up contains a venteon ultra oscillator from Laser Quantum. The paper demonstrates ultra-broadband Fourier-Transform Coherent Anti-Stokes Raman Scattering (FT-CARS) spectroscopy. The technique spanned over 3000 cm-1, particularly useful for complex models. This setup is one of the first, if not the first demonstration of this technique. The developments that could stem from this technique include high-speed or high-throughput, label-free chemical analysis.

The venteon ultra is a femtosecond oscillator, offering exceptional stability and a measured pulse duration of <5.5 fs. It delivers an average output power greater than 240 mW, corresponding to pulse energy greater than 3 nJ at 80 MHz pulse repetition rate.

To read the full paper, please click here.

Blog, Lasers