Radially polarized ring and arc beams of a neodymium laser with an intra-cavity axicon

被引：81
作者：
Bisson, JF
Li, J
Ueda, K
Senatsky, Y
机构：
[1] Univ Electrocommun, Inst Laser Sci, Chofu, Tokyo 1828585, Japan
[2] Russian Acad Sci, PN Lebedev Phys Inst, Moscow, Russia
来源：
OPTICS EXPRESS | 2006年 / 14卷 / 08期
关键词：
D O I：
10.1364/OE.14.003304
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Placing a Brewster-angle axicon inside a laser resonator makes it possible to produce a radially-polarized (RP) oscillation pattern distributed on a thin ring or a portion of a ring. Laser-diode end-pumped, Nd:Y3Al5O12 and Nd:YVO4 lasers were studied. Spatially coherent RP beams distributed on circular arcs were obtained with a polarization contrast ratio up to 80:1. Incoherent RP outputs on a full ring were also produced with a polarization contrast ratio of about 5: 1. Applications of these beams to increase absorption efficiency in laser-matter interaction are discussed. (c) 2006 Optical Society of America.
引用
收藏
页码：3304 / 3311
页数：8
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