Generation of a Bessel Beam from Annularly Arranged Multi-Beams

Kazuo Imasaki,Chiyoe Yamanaka,Shinji Motokoshi,Kazuhisa Hashimoto,Taku Saiki,Masahiro Nakatsuka,Hisanori Fujita

The Review of Laser Engineering（2008）

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摘要

A laser beam passes through 12 or 24 circular apertures arranged annularly, and the transmitted beams overlapped with each other in phase to generate a Bessel beam. The resultant beam propagates and maintains characteristic narrow energy distribution that agrees with the results of numerical calculation.

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关键词

bessel beam,multi-beams

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