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Needle beams: a review
Advances in Physics: X ( IF 6 ) Pub Date : 2020-03-10 , DOI: 10.1080/23746149.2020.1736950
Ruediger Grunwald 1 , Martin Bock 1
Affiliation  

ABSTRACT

Needle beams are highly attractive for applications which take advantage from a spatial and temporal localization of photons. High intensities, high resolution and extended depth of focus lead to fundamental advances in the optical system performance. Ultrashort, fringe-free, self-reconstructing nondiffracting pulses with undistorted temporal transfer are obtained by generating truncated Bessel beams under self-apodization conditions. Nondiffracting Talbot self-imaging of needle beam arrays enables to transfer near field information to the Fraunhofer zone. With addressable arrays of needle beams, reconfigurable time-wavefront sensors are built up. Moreover, spatial light modulators and flexible axicons are used to realize structured, highly localized wavepackets, accelerating beams and nondiffracting images.



中文翻译:

针梁:审查

摘要

针束对于利用光子的空间和时间局部化优势的应用非常有吸引力。高强度,高分辨率和扩展的聚焦深度导致光学系统性能的根本提高。通过在自变迹条件下生成截断的贝塞尔光束,可以获得具有无时间偏移的超短,无条纹,自重构的非衍射脉冲。针束阵列的非衍射Talbot自成像功能可以将近场信息传输到Fraunhofer区。通过可寻址的针束阵列,可重构的时间波前传感器得以构建。此外,空间光调制器和柔性轴锥用于实现结构化,高度局部化的波包,加速光束和非衍射图像。

更新日期:2020-04-20
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