High Power Laser and Particle Beams, Volume. 34, Issue 3, 031014(2022)
Attosecond light pulses in simulations using various laser plasmas
The generation of single isolated attosecond light pulses from the interaction of relativistic few-cycle lasers with solid density plasma surfaces is investigated using one dimensional particle-in-cell simulations. The primary subject of the study is the effects of the multi-parameter combinations which uniquely define the laser plasma interactions, on the laser to relativistic high-order harmonic energy conversion efficiencies, and also on the single attosecond light pulse isolation degrees. Here these multi-parameters include laser intensities, incidence angles, plasma scale lengths, etc. The impact of laser-plasma interaction parameters on attosecond light pulse generations is generally complicated. However, there exist an optimal plasma scale length and an optimal incidence angle to efficiently generate high-order harmonics and intense attosecond light pulses. When other parameters are fixed, a moderately intense relativistic laser is more advantageous to realize isolated attosecond light pulses with a broad controlling parameters range. And a larger incidence angle favors a higher isolation degree as well as a broader range of controlling parameters towards the generation of intense isolated attosecond light pulses.
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Guangjin Ma, Chunlai Li, Jin He. Attosecond light pulses in simulations using various laser plasmas[J]. High Power Laser and Particle Beams, 2022, 34(3): 031014
Category: Laser Propagation and Control
Received: Jul. 19, 2021
Accepted: --
Published Online: Mar. 28, 2022
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