Инд. авторы:	Rubenchik A.M., Vaseva I.A., Fedoruk M.P., Turitsyn S.K.
Заглавие:	Laser space debris cleaning: Elimination of detrimental self-focusing effects
Библ. ссылка:	Rubenchik A.M., Vaseva I.A., Fedoruk M.P., Turitsyn S.K. Laser space debris cleaning: Elimination of detrimental self-focusing effects // Optical Engineering. - 2019. - Vol.58. - Iss. 1. - Art.011003. - ISSN 0091-3286. - EISSN 1560-2303.
Внешние системы:	DOI: 10.1117/1.OE.58.1.011003; SCOPUS: 2-s2.0-85054089072; WoS: 000463893000007;
Реферат:	eng: A ground-based laser system for space debris cleaning requires pulse power well above the critical power for self-focusing in the atmosphere. Self-focusing results in beam quality degradation and is detrimental for the system operation. We demonstrate that, for the relevant laser parameters, when the thickness of the atmosphere is much less than the focusing length (that is, of the orbit scale), the beam transit through the atmosphere produces the phase distortion only. The model thus developed is in very good agreement with numerical modeling. This implies that, by using phase mask or adaptive optics, it may be possible to eliminate almost completely the impact of self-focusing effects in the atmosphere on the laser beam propagation. © 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).
Ключевые слова:	System operation; Self-focusing; Self focusing effect; Quality degradation; Phase distortions; Orbital debris; Laser parameters; Ground-based lasers; Space debris; Laser beams; Laser beam effects; Laser ablation; Focusing; Cleaning; Adaptive optics; laser self-focusing; laser orbital debris cleaning; laser ablation; Light propagation;
Издано:	2019
Физ. характеристика:	011003