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Abstract：
A subwavelength metal grating is designed to generate axially symmetric polarized beams (ASPBs) in the visible region, and a simulation based on the rigid coupled wave algorithm (RCWA) is performed to optimize the grating. The ring-shaped grating is manufactured by electron beam lithography (EBL), nanometer-imprint and plasma etching technologies. An azimuthally polarized beam is obtained with the grating under the 632.8 nm He-Ne laser radiation, which can be transferred to a radially polarized beam or other ASPBs with wave plates. Based on the broad band feature of the grating, this method is practical and reliable in realizing ASPBs. (C) 2013 The Japan Society of Applied Physics
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APPLIED PHYSICS EXPRESS
ISSN： 1882-0778
Year： 2013
Issue： 3
Volume： 6
2 . 5 6 7
JCR@2013
2 . 3 0 0
JCR@2023
ESI Discipline： PHYSICS;
JCR Journal Grade：1
CAS Journal Grade：2
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 1
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