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Propagation of elliptical Gaussian beams carrying mixed screw–edge dislocations through uniaxial crystals
Ist Teil von
Indian journal of physics, 2023-12, Vol.97 (14), p.4417-4425
Ort / Verlag
New Delhi: Springer India
Erscheinungsjahr
2023
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
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.