Paper
29 September 2004 Far-field Gaussian beam shaping under the diffraction limits
Shuyun Teng, Liren Liu, Zhu Luan
Author Affiliations +
Abstract
In this paper, recurring to the main idea of G-S algorithm, an inverse transmission optimization algorithm is proposed to establish the phase structure of the compensation phase plate, which can realize the shaping of Gaussian beam in far diffraction field. This method not only overcomes the disadvantage of G-S algorithm in convergence which is applied to shape Gaussian beam under the diffraction limits, but the obtained phase plate is more convenient for the practical fabrication. According to the inverse transmission optimization algorithm, we transform successfully Gaussian laser beam into the flat-top, the doughnut-like beam and the two-rings beam within the diffractive limits region. The corresponding numerical results are provided.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shuyun Teng, Liren Liu, and Zhu Luan "Far-field Gaussian beam shaping under the diffraction limits", Proc. SPIE 5525, Laser Beam Shaping V, (29 September 2004); https://doi.org/10.1117/12.557899
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Cited by 1 scholarly publication.
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KEYWORDS
Diffraction

Gaussian beams

Optimization (mathematics)

Detection and tracking algorithms

Beam shaping

Fusion energy

Laser beam propagation

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