Propagation of elliptical Gaussian beams carrying mixed screw–edge dislocations through uniaxial crystals

The propagation expressions of elliptical Gaussian beams carrying mixed screw–edge dislocations through a uniaxial crystal orthogonal to the optical axis are derived. The effects of the source beam and crystal on the intensity and phase of such beams during propagation are discussed in detail. The o...

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Bibliographic Details
Published in:Indian journal of physics 2023-12, Vol.97 (14), p.4417-4425
Main Authors: Gao, Liang, Xue, Jiayin, Zhang, Yiqun, Song, Songyan, Dong, Keyan, Ren, Bin
Format: Article
Language:English
Subjects:
Astrophysics and Astroparticles
Crystal dislocations
Crystal optics
Edge dislocations
Gaussian beams (optics)
Original Paper
Physics
Physics and Astronomy
Refractivity
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Summary:The propagation expressions of elliptical Gaussian beams carrying mixed screw–edge dislocations through a uniaxial crystal orthogonal to the optical axis are derived. The effects of the source beam and crystal on the intensity and phase of such beams during propagation are discussed in detail. The obtained results show that the intensity profiles of elliptical and circular Gaussian beams carrying mixed screw–edge dislocations in uniaxial crystals are controlled by the beam parameter ratio of the waist width, edge dislocations, off-axis distance and ratio of the refractive indices of uniaxial crystals.
ISSN:0973-1458
0974-9845
DOI:10.1007/s12648-023-02771-3