| Formation of Small Bottle Light Beams |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 60477041, the Natural Science Project of the Education Bureau of Fujian Province under Grant No JA06048, and the Natural Science Project of Sanming University under Grant No B0603/G. |
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| 摘 要： | A method for obtaining small bottle light beams, e.g. 0.92λ×0.4λ, in a high numerical-aperture lens system is proposed and numerically demonstrated. This can be achieved by changing the radius of each zone of the binary element and polarization rotation angle of the cylindrically polarized vectorial vortex beam. It is found that the transversal and axial sizes of this bottle beam are equal to about 0.92λ and 0.4λ, respectively. In addition, the connection between angular momentum and topological Pancharatnam charge is also shown.
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| 关 键 词： | 光束 二进制元素 偏振 涡流 |
| 收稿时间： | 2007-09-10 |
Formation of Small Bottle Light Beams |
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| Authors: | RAO Lian-Zhou PU Ji-Xiong |
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| Affiliation: | Department of Physics and Electromechanical Engineering, Sanming University, Sanming 365004Department of Electronic Science and Technology, Huaqiao University, Quanzhou 362021 |
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| Abstract: | |
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| Keywords: | 42 25 Fx 42 25 Ja |
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