期刊
OPTICS EXPRESS
卷 30, 期 14, 页码 24716-24729出版社
Optica Publishing Group
DOI: 10.1364/OE.458719
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- Jenny ja Antti Wihurin Rahasto [00210075]
- Academy of Finland [308394]
- Aalto Science Institute AScI
- Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN)
- Academy of Finland (AKA) [308394, 308394] Funding Source: Academy of Finland (AKA)
This paper presents a theoretical framework for generating light sheets and introduces a practical method. The transverse profile of the light sheets can be shaped by modifying the spectrum of the light. This research is significant for beam-engineering technology and its applications.
Light sheets are optical beam-like fields with one-dimensional intensity localization. Ideally, the field intensity should be independent of the longitudinal and one of the transverse coordinates, which is difficult to achieve even for truncated light sheets. In this work, we present a general theoretical framework for intensity-interferometric continuous wave (cw) light sheets formed by overlapping the interference fringe patterns of mutually uncorrelated frequency components of the field. We show that the key parameters of the light sheets can be calculated using simple analytical expressions. We propose a practical way to generate such light sheets with the help of prisms and demonstrate numerically the abilities of the method. Both bright and dark light sheets with an exceptionally small thickness and long divergence-free propagation distance are possible to generate. We also show that the transverse profile of the generated light sheets can be shaped by modifying the spectrum of the light. We believe our findings advance the beam-engineering technology and its applications. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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