Figure 2 | Scientific Reports

Figure 2

From: Bessel beam CARS of axially structured samples

Figure 2

Definition of the parameters used for the calculations.

Phase-matching and anti-Stokes radiation angle β are controlled by the illumination geometry determined by θp;min/max or α as well as θS. Anti-Stokes radiation arises from a homogeneous sample of length L and radius Q or an arbitrary z-structured sample. Pump, Stokes and anti-Stokes beam paths are highlighted in green, red and blue, respectively.

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