OPTICAL HELICES AND SPIRAL INTERFERENCE-FRINGES

被引：150

作者：

HARRIS, M

HILL, CA

VAUGHAN, JM

机构：

[1] DRA Malvern, Gt Malvern, Worcs WR14 3PS, St Andrews Road

来源：

OPTICS COMMUNICATIONS | 1994年 / 106卷 / 4-6期

关键词：

D O I：

10.1016/0030-4018(94)90314-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Very pure optical helices have been generated in an argon ion laser of low Fresnel number. The beam character, with continuous cophasal surface of helical form, is clearly demonstrated by spiral interference fringes produced in a novel interferometric arrangement. In addition to single-start helices the multistart fringe patterns establish both two-start and three-start helices (of pitch two and three wavelengths, respectively), and also the state of helicity (i.e. rotational hand) of the beams.

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收藏

页码：161 / 166

页数：6

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