Large-aperture adaptive optical system for correcting wavefront distortions of a petawatt Ti : sapphire laser beam

Autor:	V.V. Samarkin, A.G. Alexandrov, I.V. Galaktionov, A.V. Kudryashov, A.N. Nikitin, A.L. Rukosuev, V.V. Toporovsky, Yu.V. Sheldakova
Rok vydání:	2022
Předmět:	Statistical and Nonlinear Physics Electrical and Electronic Engineering Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials
Zdroj:	Quantum Electronics. 52:187-194
ISSN:	1468-4799 1063-7818
Popis:	This paper reports a large-aperture adaptive optical system with a bimorph deformable mirror and Shack – Hartmann wavefront sensor for aberration correction and beam focusing improvement in state-of-the-art petawatt Ti : sapphire lasers. We consider methods for providing feedback to the wavefront sensor and obtaining an objective wavefront that optimises beam focusing onto a target. The use of an adaptive system with a controlled 127-channel 320-mm-aperture mirror in a Ti : sapphire laser with an output power of 4.2 PW has made it possible to obtain a record high laser beam intensity: 1.1 × 1023 W cm−2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6448a5a4b3b828199e3cb88860139556 https://doi.org/10.1070/qel17989 Zobrazit plný text záznamu