Radially polarized optical vortex converter created by femtosecond laser nanostructuring of glass
Radially polarized optical vortex converter created by femtosecond laser nanostructuring of glass
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DOI：
10.1063/1.3590716
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发表时间：
2011-05-16
影响因子：
4
通讯作者：
Gertus, Titas
中科院分区：
文献类型：
--
作者：
Beresna, Martynas;Gecevicius, Mindaugas;Gertus, Titas
我们演示了利用飞秒激光写入自组装纳米结构在硅玻璃上制造的空间变极化转换器产生具有径向或方位偏振的光学涡流。通过控制写入参数，特别是写入光束的偏振方位角，实现了对诱导形式双折射的控制。该变换器通过控制入射圆偏振的手性，实现了从径向偏振到方位偏振的切换。(C) 2011年美国物理研究所。(doi: 10.1063/1.3590716)
We demonstrate the generation of optical vortices with radial or azimuthal polarization using a space variant polarization converter, fabricated by femtosecond laser writing of self-assembled nanostructures in silica glass. Manipulation of the induced form birefringence is achieved by controlling writing parameters, in particular, the polarization azimuth of the writing beam. The fabricated converter allows switching from radial to azimuthal polarization by controlling the handedness of incident circular polarization. (C) 2011 American Institute of Physics. [doi:10.1063/1.3590716]