Beam propagation method for wide-field nonlinear wave mixing microscope*
Lv Yong-Ganga), Ji Zi-Henga), Yu Wen-Taoa), Shi Ke-Bin†a),b)
       
Microscopy images of a PS microsphere at different axial positions: (a) the bright field microscope image; (A) the calculated image (by summing the index along the z axial); (b)–(e) the wide-field CARS images at different positions from the microsphere, and the distant are 5 μm, 10 μm, 15 μm, 20 μm, respectively; (B)–(E) the corresponding simulation results.