Analysis of the near-field optical field of solid immersion lens

ZHANG Dong-ling; TANG Qing-bin; DAI Qi-run

Using two-dimension finite-difference time-domain (2D-FDTD) method,the optical fields of solid immersion lens are studied when ill uminated by linear polarized focusing Gaussian beam.The simulated results reveal that the portrait optical field is produced,which broadenes the emitted beamradius.The beam of the component field whose polarization is parallel to the incid ent beam is smaller than that of the total optical field and the higher the refractive index is,the larger the contrast is.

Corresponding author: DAI Qi-run, daigr@xgtc.edu.cn

1. College of Physics & Information Electronic Engineering, Xinyang Normal University, Xinyang 464000, China

Received Date: 2004-02-24

Accepted Date: 2004-06-28

Available Online: 2005-03-25

Abstract: Using two-dimension finite-difference time-domain (2D-FDTD) method,the optical fields of solid immersion lens are studied when ill uminated by linear polarized focusing Gaussian beam.The simulated results reveal that the portrait optical field is produced,which broadenes the emitted beamradius.The beam of the component field whose polarization is parallel to the incid ent beam is smaller than that of the total optical field and the higher the refractive index is,the larger the contrast is.

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Reference (14)

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Analysis of the near-field optical field of solid immersion lens

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