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Relevant bibliographies by topics / Simple Astigmatic Gaussian Beam

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Academic literature on the topic 'Simple Astigmatic Gaussian Beam'

Author: Grafiati

Published: 11 March 2023

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Journal articles on the topic "Simple Astigmatic Gaussian Beam"

1

Volyar, Alexander, Eugeny Abramochkin, Yana Akimova, and Mikhail Bretsko. "Astigmatic-Invariant Structured Singular Beams." Photonics 9, no. 11 (2022): 842. http://dx.doi.org/10.3390/photonics9110842.

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We investigate the transformation of structured Laguerre–Gaussian (sLG) beams after passing through a cylindrical lens. The resulting beam, ab astigmatic structured Laguerre–Gaussian (asLG) beam, depends on quantum numbers (n,ℓ) and three parameters. Two of them are control parameters of the initial sLG beam, the amplitude ϵ and phase θ. The third one is the ratio of the Rayleigh length z0 and the focal length f of the cylindrical lens. It was theoretically revealed and experimentally confirmed that the asLG beam keeps the intensity shape of the initial sLG beam when the parameters satisfy sim

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2

Plachenov, A. B., V. N. Kudashov, and A. M. Radin. "Simple formula for a Gaussian beam with general astigmatism in a homogeneous medium." Optics and Spectroscopy 106, no. 6 (2009): 910–12. http://dx.doi.org/10.1134/s0030400x09060204.

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3

Repasky, K. S., J. K. Brasseur, J. G. Wessel, and J. L. Carlsten. "Correcting an astigmatic, non-Gaussian beam." Applied Optics 36, no. 7 (1997): 1536. http://dx.doi.org/10.1364/ao.36.001536.

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4

Vinogradov, D. V. "Mirror conversion of gaussian beams with simple astigmatism." International Journal of Infrared and Millimeter Waves 16, no. 11 (1995): 1945–63. http://dx.doi.org/10.1007/bf02072550.

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5

Tuvi, Ram, and Timor Melamed. "Astigmatic Gaussian Beam Scattering by a PEC Wedge." IEEE Transactions on Antennas and Propagation 67, no. 11 (2019): 7014–21. http://dx.doi.org/10.1109/tap.2019.2925928.

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6

Bilger, Hans R., and Taufiq Habib. "Knife-edge scanning of an astigmatic Gaussian beam." Applied Optics 24, no. 5 (1985): 686. http://dx.doi.org/10.1364/ao.24.000686.

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7

Huang, Yong-Liang, and Chi-Kuang Sun. "Z-scan measurement with an astigmatic Gaussian beam." Journal of the Optical Society of America B 17, no. 1 (2000): 43. http://dx.doi.org/10.1364/josab.17.000043.

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8

Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "ORBITAL ANGULAR MOMENTUM OF AN ASTIGMATIC HERMITE-GAUSSIAN BEAM." Computer Optics 42, no. 1 (2018): 13–21. http://dx.doi.org/10.18287/2412-6179-2018-42-1-13-21.

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An explicit formula for the normalized orbital angular momentum (OAM) of an elliptical Hermite-Gaussian (HG) beam of orders (0, n) focused by a cylindrical lens is obtained. In modulus, this OAM can be both greater and smaller than n. If the cylindrical lens focuses not an elliptical, but a conventional HG beam, the latter will also have an OAM that can be both larger and smaller in modulus than that of an elliptical HG beam. For n = 0, this beam converts to an astigmatic Gaussian beam, but, as before, it will still have OAM. With the help of two interferograms, a phase of the astigmatic Gauss

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9

Zhu, Kaicheng, Chang Gao, Jiahui Li, Dengjuan Ren, and Jie Zhu. "Propagations of Sin-Gaussian Beam with Astigmatism through Oceanic Turbulence." E3S Web of Conferences 299 (2021): 03013. http://dx.doi.org/10.1051/e3sconf/202129903013.

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The propagation behaviours of a sin-Gaussian beam (SiGB) with astigmatism in oceanic water is analysed. The analytical expressions for the average intensity of such a beam are derived by using the extended Huygens-Fresnel integral. Its average intensity and on-axial intensity distributions in oceanic water are numerically examined. Then, we mainly focus on the effect of the beam parameters and the medium structure constant on the propagation behaviours for the astigmatic SiGBs in oceanic water, revealing that the evolutions of the intensity distributions can be effectively modulated by adjusti

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10

Kotlyar, V. V., A. A. Kovalev, and A. P. Porfirev. "Measurement of the orbital angular momentum of an astigmatic Hermite–Gaussian beam." Computer Optics 43, no. 3 (2019): 356–67. http://dx.doi.org/10.18287/2412-6179-2019-43-3-356-367.

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Here we study three different types of astigmatic Gaussian beams, whose complex amplitude in the Fresnel diffraction zone is described by the complex argument Hermite polynomial of the order (n, 0). The first type is a circularly symmetric Gaussian optical vortex with and a topological charge n after passing through a cylindrical lens. On propagation, the optical vortex "splits" into n first-order optical vortices. Its orbital angular momentum per photon is equal to n. The second type is an elliptical Gaussian optical vortex with a topological charge n after passing through a cylindrical lens.

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