Extended Data Fig. 5: Detection of very low-wavenumber modes by spectral filtering.
From: Super-broadband stimulated Raman scattering spectroscopy and imaging
(a) Signal origins of the high-wavenumber and low-wavenumber modes (that is, interband and intraband interactions), respectively. The yellow-fill regions show the spectral components that reach the detectors. (b) SuperB-SRS spectrum of benzonitrile that covers the 100 cm−1 to 2500 cm−1 range. The red curve is acquired with spectral filtering, dark blue curve with no spectral filtering, and light blue curve in the upper panel shows the benchmark spontaneous Raman result.
