Figure 2: Numerical simulations of the Bessel beam intensity distributions and the stimulated Raman projection signal level.
From: Volumetric chemical imaging by stimulated Raman projection microscopy and tomography
(a) The cross-sectional and (b) the longitudinal distributions of the pump beam intensity at the wavelength of 800 nm. The colour bar is the same for a,b. (c) The cross-sectional and (d) the longitudinal distributions of the Stokes beam intensity at the wavelength of 1,040 nm. The colour bar is the same for c,d. (e) The cross-sectional and (f) the longitudinal distributions of the stimulated Raman scattering (SRS) signal intensity generated around 2,885 cm−1. The colour bar is the same for e,f. (g) The stimulated Raman projection (SRP) and the SRS signal level as a function of the sample thickness, assuming the same input laser powers for the Bessel and the Gaussian beams. (h) The SRP and the SRS signal level as a function of the sample thickness, assuming the same laser power at the Bessel beam central lobe and the total power of Gaussian beam. The red solid curves indicate the SRP signal generated by the Bessel pump and Stokes beams, and the blue dashed curves indicate the SRS signal generated by the Gaussian pump and Stokes beams.
