Study on Focusing Mechanism of Radial Polarization with Immersion Objective
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概要
- 論文の詳細を見る
In this study, we employ vectorial diffraction to examine the focusing mechanism of radially polarized beams using an immersion objective with linear and circular polarized illuminations. Radial polarization features a sharp focus in a high-numerical-aperture (NA) system. The longitudinal component governing spot formation depends on the bending of the polarization vector rather than the immersion circumstance. As the marginal angle of the objective exceeds 64.16 and 71.81°, the depolarization effect of the radially polarized beam enables a smaller spot than the linear and circular polarizations, respectively.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-07-25
著者
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Lan Tzu-Hsiang
Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 300-10, Taiwan
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Tien Chung-Hao
Department of Photonics and Display Institute, National Chiao Tung Univeristy, Hsinchu, Taiwan, 30010, R.O.C.
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Tien Chung-Hao
Department of Photonics and Display Institute, National Chiao Tung University, Hsinchu 300-10, Taiwan
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