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We present a novel beam shaping method to generate nondiffracting beams with a specific transverse shape. By tailoring the angular spectrum of a Helmholtz-Gauss beam using an iterative Fourier transform algorithm, we produce beams with a specific intensity pattern and the extended propagation distance characteristic of nondiffracting beams
Lopez-Mariscal, C.
and Helmerson, K.
(2010),
Shaping Arbitrary Nondiffracting Beams, Optics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902954
(Accessed June 9, 2023)