• Chinese Optics Letters
  • Vol. 15, Issue 3, 030004 (2017)
Guadalupe López-Morales1、*, Victor-Manuel Rico-Botero1, Rafael Espinosa-Luna1, and Qiwen Zhan2
Author Affiliations
  • 1GIPYS Laboratory, Centro de Investigaciones en Óptica, A. C., León, Gto 37150, México
  • 2Department of Electro-Optics and Photonics, University of Dayton, Dayton, OH 45469, USA
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    DOI: 10.3788/COL201715.030004 Cite this Article Set citation alerts
    Guadalupe López-Morales, Victor-Manuel Rico-Botero, Rafael Espinosa-Luna, Qiwen Zhan. Refractive index measurement of dielectric samples using highly focused radially polarized light (Invited Paper)[J]. Chinese Optics Letters, 2017, 15(3): 030004 Copy Citation Text show less
    Side view of a collimated illumination field focused into a sample.
    Fig. 1. Side view of a collimated illumination field focused into a sample.
    Radial polarization state of light focused by an objective lens. For any azimuthal angle (φ), the electric field is always in the plane of incidence.
    Fig. 2. Radial polarization state of light focused by an objective lens. For any azimuthal angle (φ), the electric field is always in the plane of incidence.
    Theoretical images generated numerically. Incident beam: (a) x-linear and (b) radial polarization.
    Fig. 3. Theoretical images generated numerically. Incident beam: (a) x-linear and (b) radial polarization.
    Schematic diagram for the polarimetric experimental setup.
    Fig. 4. Schematic diagram for the polarimetric experimental setup.
    Experimental intensity distributions on the exit pupil plane of the objective lens when the sample is illuminated by: (a) x-linear and (b) radial polarization. Symmetrical dark zones, highlighted by the dashed lines, appear as a consequence of light reaching the Brewster angle.
    Fig. 5. Experimental intensity distributions on the exit pupil plane of the objective lens when the sample is illuminated by: (a) x-linear and (b) radial polarization. Symmetrical dark zones, highlighted by the dashed lines, appear as a consequence of light reaching the Brewster angle.
       Incident polarization
    ParameterReported valueTheoretical valuex-polarizedRadially polarized
    θB56.65056.59056.349±1.27956.116±1.502
    n1.5191.5161.504±0.0711.492±0.082
    Table 1. Measurement Results of the Brewster Angle and the Refractive Index of a Sample by Polarimetry
    Guadalupe López-Morales, Victor-Manuel Rico-Botero, Rafael Espinosa-Luna, Qiwen Zhan. Refractive index measurement of dielectric samples using highly focused radially polarized light (Invited Paper)[J]. Chinese Optics Letters, 2017, 15(3): 030004
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