Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
A method of coherent controlling the polarization of a medium has been proposed recently for the generation of extremely short pulses. The method is based on the excitation of atomic polarization oscillations and their subsequent stop using a pair of ultrashort pulses. The so-called stopped pulse of the polarization of a medium, which arises in the interval between its excitation and deexcitation, can be a source of an extremely short radiation pulse. In this work, the above-indicated possibility of generation of an isolated attosecond ultraviolet pulse in a three-level resonant medium whose parameters correspond to a hydrogen atom excited by a pair of unipolar X-ray pulses is considered theoretically. In this case, the generation mechanism is of the antenna-type, that is, it is caused by the collective spontaneous emission of pre-phased atoms in the absence of a noticeable decay of their free polarization.
Переведенное название | Генерация аттосекундного импульса на основе коллективного спонтанного излучения слоя трехуровневых атомов, возбуждаемых парой униполярных импульсов |
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Язык оригинала | английский |
Страницы (с-по) | 1857-1864 |
Число страниц | 8 |
Журнал | OPTICS AND SPECTROSCOPY |
Том | 128 |
Номер выпуска | 11 |
Дата раннего онлайн-доступа | 20 авг 2020 |
DOI | |
Состояние | Опубликовано - ноя 2020 |
ID: 61414920