Author Affiliations
1Institute of Modern Optics, Nankai University, Tianjin 300071, China2Tianjin Union Medical Centre, Tianjin 300121, Chinashow less
Fig. 1. Polarization selective absorption properties of graphene under total internal reflection conditions. (a) Schematic of sandwich structure containing graphene; (b) reflectivity curves of TE polarized light and TM polarized light
Fig. 2. 45° generalized column vector incident light focusing. (a) Polarization schematic diagram; (b) intensity of longitudinal electric field component; (c) intensity of radial electric field component; (d) intensity of angular electric field component; (e) width at diameter of radial electric field beam; (f) width at diameter of angular electric field beam
Fig. 3. Model of slim beam scanning multilayer medium
Fig. 4. Model of ideal slim beam scanning PS medium ball
Fig. 5. Model of 45° generalized cylindrical vector beam scanning PS medium ball
Fig. 6. Refractive index curves measured at diameter of ball scanned by different beams. (a) Refractive index curve measured at diameter of ball scanned by slim beam; (b) refractive index curve measured at diameter of ball scanned by 45° generalized cylindrical vector beam
Fig. 7. Deconvolution and theoretical simulation results. (a) Simulation results of ideal slim beam and generalized column vector beam sweeping over small ball 2; (b) result of ball 2 after eliminating influence of wide beam
Fig. 8. Optical path of focused graphene sensor imaging
Fig. 9. Characterization diagram of PS beads. (a) Microscope characterization diagram; (b) Coulter characterization diagram
Fig. 10. Result of optical system scanning 1st PS ball. (a) Bright field diagram under optical system; (b) refractive index distribution obtained by scanning 1st PS ball
Fig. 11. Deconvolution results of ball experiment. (a) Refractive index distribution obtained by scanning 2nd PS ball by optical system; (b) refractive index distribution of PS ball after one-dimensional transverse deconvolution; (c) refractive index distribution of PS ball after two-dimensional transverse and longitudinal deconvolution; (d) refractive index curves measured at diameter of PS ball recovered by deconvolution