TY - GEN

T1 - Refractive phase masks for lensless laser beam shaping

AU - Radnatarov, D. A.

AU - Kokhanovskiy, A. Yu

AU - Kozmina, P. V.

AU - Kobtsev, S. M.

N1 - The work of S.M. Kobtsev received support of the Ministry of Science and Higher Education of the Russian Federation (FSUS-2020-0036).

PY - 2024

Y1 - 2024

N2 - This work describes a method of laser beam transformation in lensless optical systems by phase SLM. This method relies on an iterative algorithm of wavefront reconstruction that uses a physical model of back propagation of a conjugated wave front and smooth morphing of the target beam profile, also avoiding Fourier transform in calculations and therefore lenses in the optical system. It allows designing refractive phase masks that produce a smooth wavefront. This method allows practically arbitrary beam transformation, including formation of beams with a smooth phase and intensity profiles, thus solving the problem of pixel-to-pixel matching when using SLM in a doublepass configuration that usually arises when using diffractive phase masks.

AB - This work describes a method of laser beam transformation in lensless optical systems by phase SLM. This method relies on an iterative algorithm of wavefront reconstruction that uses a physical model of back propagation of a conjugated wave front and smooth morphing of the target beam profile, also avoiding Fourier transform in calculations and therefore lenses in the optical system. It allows designing refractive phase masks that produce a smooth wavefront. This method allows practically arbitrary beam transformation, including formation of beams with a smooth phase and intensity profiles, thus solving the problem of pixel-to-pixel matching when using SLM in a doublepass configuration that usually arises when using diffractive phase masks.

KW - SLM

KW - beam shaping

KW - laser beam

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85203172154&origin=inward&txGid=0e9a62506e49a91dc0820256d5297f72

UR - https://www.mendeley.com/catalogue/3384bd35-a17a-3146-bd5c-139e60589451/

U2 - 10.1109/ICLO59702.2024.10624312

DO - 10.1109/ICLO59702.2024.10624312

M3 - Conference contribution

SN - 9798350390674

T3 - 2024 International Conference Laser Optics, ICLO 2024 - Proceedings

SP - 184

BT - 2024 International Conference Laser Optics, ICLO 2024 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2024 International Conference Laser Optics

Y2 - 1 July 2024 through 5 July 2024

ER -