Generation of Closely Located Light Spots Using Specular Airy Laser Beams

Хонина, С. Н.; Porfirev, A.; Fomchenkov, Sergey A.; Larkin, A.; Savelyev-Trofimov, A.

doi:10.18287/2412-6179-2017-41-5-661-668

Cited by 4 publications

(2 citation statements)

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“…Beams with autofocusing properties are useful for optical manipulation [7,8], multiphoton polymerization [9], nonlinear effects [10], polarization conversion [11], and sharp focusing [12]. Since there is such a demand in various applications, researchers have focused on the study of other beams with autofocusing properties, for example, Pearcey beams [13,14], aberration beams [15], as well as symmetric [16][17][18] and generalized [19,20] Airy beams.…”

Section: Introductionmentioning

confidence: 99%

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Mirror and Circular Symmetry of Autofocusing Beams

Хонина

2021

Symmetry

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This article demonstrates the crucial importance of the symmetrization method for the formation of autofocusing beams. It is possible to impart autofocusing properties to rather arbitrary distributions, for example, truncated and inverted classical modes (such as Hermite–Gaussian, Laguerre–Gaussian, and Bessel modes) or shift the fundamental Gaussian beam by inserting mirror or circular symmetry. The most convenient for controlling autofocusing characteristics is the truncated sinus function with a power-law argument dependence. In this case, superlinear chirp beams (with power q > 2) exhibit sudden and more abrupt autofocusing than sublinear chirp beams (with power 1 < q < 2). Comparison of the different beams’ propagation is performed using fractional Fourier transform, which allows obtaining the field distribution in any paraxial region (both in the Fresnel and Fraunhofer diffraction regions). The obtained results expand the capabilities of structured beams in various applications in optics and photonics.

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Section: Introductionmentioning

confidence: 99%

“…The Airy beam (2) has a spatial asymmetry (Figure 1a). In [16,18], a comparison between Airy mirror beams and HG modes was made; therefore, we compared the propagation of the beam (2) and the beam representing half of the HG mode:…”

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confidence: 99%