Using Resonance Scanners and 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 from Laser Quantum and a resonant scanner, CRS12 kHz, from Cambridge Technology. 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. 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.