Formation of a spatial profile of a beam in a laser amplifier by a system comprising a hard aperture and a spatial filter

Alekseev, V. N.; Zhilin, A. N.; Starikov, A D; Chernov, V. N.

doi:10.1070/qe1980v010n09abeh010738

Cited by 5 publications

(1 citation statement)

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“…Упоминание о возможности применения ЗД встречалось и за 2 года до 1978 г. -в тезисах конференции [2] и 2 года позже [3]. Это направление аподизации получило широкое развитие и дальнейшее изучение [4,5].…”

Section: Introductionunclassified

Laser beam shaping in an apodizer with a rectangular serrated aperture

Sizova¹

2023

Computer Optics

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Profile transformation of a uniform monochromatic beam with a flat wavefront after the propagation through an apodizer comprising a square serrated aperture and a spatial filter is theoretically considered at the apodizer exit and behind it. Main differences from the case of the circular apodizer geometry are shown. Roles of the square serrated aperture angles, the phase in Fresnel diffraction, the shape of the aperture serrations and serration height-to-period ratio are analyzed.

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Section: Introductionunclassified

Laser beam shaping in an apodizer with a rectangular serrated aperture

Sizova¹

2023

Computer Optics

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Formation of the spatial structure of radiation in solid-state laser systems by apodizing and hard apertures

Kryzhanovskii¹,

Sedov²,

Serebryakov³

et al. 1983

Sov. J. Quantum Electron.

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We study equations of a non-gauge vector field in a spherically symmetric static metric. The constant vector field with a scale arrangement of components, the temporal component about the Planck mass m Pl and the radial component about M suppressed with respect to the Planck mass, serves as a source of metric reproducing flat rotation curves in dark halos of spiral galaxies, so that the velocity of rotation v 0 is determined by the hierarchy of scales: √ 2v 2 0 = M/m Pl , and M ∼ 10 12 GeV. A natural estimate of Milgrom's acceleration about the Hubble rate is obtained. PACS numbers: 04.40.−b, 95.35.+d, 04.40.Nr, 98.62.Gq 1 An example of an alternative description due to a modification of gravity is given in [15].

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