Фазовые портреты пространственных моментов коллимированного волнового пучка в управляемом и свободном режимах

Аннотация

Представлены результаты экспериментального исследования структуры фазовых траекторий энергетического центра коллимированного волнового пучка. Установлено существенное различие фазовых портретов и значений размерности пространства вложения для вертикальных и горизонтальных компонент первого пространственного момента. Рассмотрено качественное отличие фазовых портретов, реализуемых при ламинарных течениях, когерентной турбулентности. Выполнена предварительная оценка спектров времен возврата Пуанкаре. Реконструкция и анализ фазовых портретов для стационарных режимов и фазовых траекторий для нестационарных могут быть положены в основу метода визуального контроля динамических режимов пространственно-временных аберраций пучка и классификации состояний нестационарной и неравновесной атмосферы.

• коллимированный пучок
• турбулентная атмосфера
• фазовый портрет
• карты хаоса
• время возврата Пуанкаре
• коррекция наклона
• collimated beam
• turbulent atmosphere
• phase portrait
• chaos maps
• Poincare return time
• Tilt correction

Abstract (in English)

Phase portraits of spatial moments of a collimated wave beam in controlled and free modes

The results of an experimental study of the structure of phase trajectories of the energy center of a collimated wave beam are presented. A significant difference was found between phase portraits and values of the dimension of the embedded space for the vertical and horizontal components of the first spatial moment. A qualitative difference between phase portraits realized in laminar flows and coherent turbulence is considered. A preliminary estimation of the spectra of the Poincaré return times is performed. The reconstruction and analysis of phase portraits for stationary modes and phase trajectories for non-stationary can be the basis for the method of visual control of the dynamic modes of spatio-temporal beam aberrations and the classification of states of non-stationary and nonequilibrium atmospheres.

Для цитирования

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