کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8176451 | 1526381 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prepulse and amplified spontaneous emission effects on the interaction of a petawatt class laser with thin solid targets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Prepulse and amplified spontaneous emission effects on the interaction of a petawatt class laser with thin solid targets Prepulse and amplified spontaneous emission effects on the interaction of a petawatt class laser with thin solid targets](/preview/png/8176451.png)
چکیده انگلیسی
When a finite contrast petawatt laser pulse irradiates a micron-thick foil, a prepulse (including amplified spontaneous emission) creates a preplasma, where an ultrashort relativistically strong portion of the laser pulse (the main pulse) acquires higher intensity due to relativistic self-focusing and undergoes fast depletion transferring energy to fast electrons. If the preplasma thickness is optimal, the main pulse can reach the target accelerating fast ions more efficiently than an ideal, infinite contrast, laser pulse. A simple analytical model of a target with preplasma formation is developed and the radiation pressure dominant acceleration of ions in this target is predicted. The preplasma formation by a nanosecond prepulse is analyzed with dissipative hydrodynamic simulations. The main pulse interaction with the preplasma is studied with multi-parametric particle-in-cell simulations. The optimal conditions for hundreds of MeV ion acceleration are found with accompanying effects important for diagnostics, including high-order harmonics generation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 745, 1 May 2014, Pages 150-163
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 745, 1 May 2014, Pages 150-163
نویسندگان
Timur Zh. Esirkepov, James K. Koga, Atsushi Sunahara, Toshimasa Morita, Masaharu Nishikino, Kei Kageyama, Hideo Nagatomo, Katsunobu Nishihara, Akito Sagisaka, Hideyuki Kotaki, Tatsufumi Nakamura, Yuji Fukuda, Hajime Okada, Alexander S. Pirozhkov,