We present a fully automated laser system with low-intensity noise for coherent Raman scattering microscopy. The robust two-color system is pumped by a solid-state oscillator, which provides Stokes pulses fixed at 1043 nm. The tunable pump pulses of 750 to 950 nm are generated by a frequency-doubled fiber-feedback femtosecond optical parametric oscillator. The resulting pulse duration of 1.2 ps provides a viable compromise between optimal coherent Raman scattering signal and the necessary spectral resolution. Thus a spectral range of 1015 to 3695 cm−1 with spectral resolution of <13 cm−1 can be addressed.
Copy Citation TextHeiko Linnenbank, Tobias Steinle, Florian Mörz, Moritz Flöss, Han Cui, Andrew Glidle, Harald Giessen. Robust and rapidly tunable light source for SRS/CARS microscopy with low-intensity noise[J]. Advanced Photonics, 2019, 1(5): 055001