17 بهمن 1401
سعيد ميرزانژاد

سعید میرزانژاد

مرتبه علمی: استاد
نشانی: مازندران-بابلسر-دانشگاه مازندران-دانشکده علوم پایه-گروه فیزیک اتمی و مولکولی-کد پستی 95447-47416
تحصیلات: دکترای تخصصی / فیزیک اتمی و مولکولی (برهمکنش لیزر-پلاسما)
تلفن: 09111126004
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Producing High Intense Attosecond Pulse Train by Interaction of Three-Color Pulse and Overdense Plasma
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
High Harmonic Generation, Attosecond Pulse, relativistic oscillating mirror, Three-Color pulses
مجله CHINESE PHYSICS LETTERS
شناسه DOI 10.1088/0256-307X/34/5/054202
پژوهشگران محمد صالحی (نفر اول) ، سعید میرزانژاد (نفر دوم)

چکیده

Amplifying the attosecond pulse by the chirp pulse amplification method is impossible. Furthermore, the intensity of attosecond pulse is low in the interaction of laser pulse and underdense plasma. This motivates us to propose using a multi-color pulse to produce the high intense attosecond pulse. In the present study, the relativistic interaction of a three-color linearly-polarized laser-pulse with highly overdense plasma is studied. We show that the combination of 𝜔1, 𝜔2 and 𝜔3 frequencies decreases the instance full width at half maximum reflected attosecond pulse train from the overdense plasma surface. Moreover, we show that the three-color pulse increases the intensity of generated harmonics, which is explained by the relativistic oscillating mirror model. The obtained results demonstrate that if the three-color laser pulse interacts with overdense plasma, it will enhance two orders of magnitude of intensity of ultra short attosecond pulses in comparison with monochromatic pulse.