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High performance imaging of relativistic soft X-ray harmonics by sub-micron resolution LiF film detectorsстатья
Дата последнего поиска статьи во внешних источниках: 15 декабря 2012 г.
- Авторы: Pikuz Tatiana, Faenov Anatoly, Pirozhkov Alexander, Astapov Artem, Klushin Georgy, Pikuz Sergey, Nagorskiy Nikolai, Magnitskiy Sergei, Esirkepov Timur, Koga James, Nakamura Tatsufumi, Bulanov Sergei, Fukuda Yuji, Hayashi Yukio, Kotaki Hideyuki, Kato Yoshiaki, Kando Masaki
- Журнал: Physica Status Solidi (C) Current Topics in Solid State Physics
- Год издания: 2012
- DOI: 10.1002/pssc.201200390
- Аннотация: The spectrum variation and the coherent properties of the high-order harmonics (HOH) generated by an oscillating electron spikes formed at the joint of the boundaries of a cavity and a bow wave, which are created by a relativistically self-focusing laser in underdense gas jet plasma, are investigated. This new mechanism for HOH generation efficiently produces emission from ultraviolet up to the XUV “water window” spectral range. To characterize such source in the wide spectral range a diffraction imaging technique is applied. High spatial resolution EUV and soft X-ray LiF film detector have been used for precise measurements of diffraction patterns. The measurements under observation angle of 8° to the axis of laser beam propagation have been performed. The diffraction patterns were observed on the detector clearly, when the square mesh was placed at the distance of 500 mm from the output of plasma and at the distance of 27.2 mm in front of the detector. It is shown that observed experimental patterns are well consistent with modeled ones for theoretical HOH spectrum, provided by particle-in-cell simulations of a relativistic-irradiance laser pulse interaction with underdense plasma (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
- Добавил в систему: Нагорский Николай Михайлович