Quasi-Bessel beam generation by a diffractive axicon with an exponential phase function
- Authors
- Moon, J.B.; Lee, H.R.; Han, G.W.; Kim,Jiwon
- Issue Date
- Oct-2024
- Publisher
- Elsevier Ltd
- Keywords
- Axicon; Beam propagation; Bessel beam; Uniform axial intensity profile
- Citation
- Optics and Laser Technology, v.177, pp 1 - 6
- Pages
- 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- Optics and Laser Technology
- Volume
- 177
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/118896
- DOI
- 10.1016/j.optlastec.2024.111059
- ISSN
- 0030-3992
1879-2545
- Abstract
- A simple phase function for a diffractive axicon to allow generation of a quasi-Bessel beam with a uniform axial intensity profile is reported. By adding the new exponential phase function for the diffractive axicon, we theoretically show that a quasi-Bessel beam with a uniform axial intensity profile can be generated without amplitude oscillation or energy loss. We apply this spatial phase function to a spatial light modulator, illuminated by a fundamental Gaussian laser beam, and produce a quasi-Bessel beam with a long, uniform axial intensity profile, which is in very good agreement with theoretical calculation. Dependence of the phase parameters on the axial intensity profile and their optimization are discussed. © 2024 Elsevier Ltd
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF PHOTONICS AND NANOELECTRONICS > 1. Journal Articles
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