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Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
Published on: April 25, 2019
Nondiffracting narrow light beam with small atmospheric turbulence-influenced propagation
1Communications Research Laboratory, Ministry of Posts and Telecommunications, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184, Japan. aruga@crl.go.jp
Abstract:
A narrow light beam that propagates in the atmosphere with less disturbance than conventional light beams is introduced. The operating method and features of the newly proposed long-range nondiffracting beam (LRNB) are briefly demonstrated. Some experimental results of the atmospheric propagation of this beam at a distance of 500 m are shown in comparison with a conventional collimated beam and a focused beam. The results and related analyses show that the LRNB is much less influenced by atmospheric turbulence than other beams and suggest that the LRNB can apply to many fields.
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