Abstract

Isolated attosecond pulses are useful to perform pump–probe experiments at a high temporal resolution, and provide a new tool for ultrafast metrology. However, it is still a challenging task to generate such pulses of high intensity, even for a few-cycle laser. Through particle-in-cell simulations, we show that it is possible to directly generate a giant isolated attosecond pulse in the transmission direction from relativistic laser-driven plasmas. Compared to attosecond pulse generation in the reflection direction, no further spectral filtering is needed. The underlying radiation mechanism is coherent synchrotron emission, and the transmitted isolated attosecond pulse can reach relativistic intensity. This provides a promising alternative to generate intense isolated attosecond pulses for ultrafast studies.

© 2021 Optical Society of America

Isolated attosecond pulse in the water window from many-cycle laser-driven plasma mirrors without pulse engineering

Zi-Yu Chen
Opt. Lett. 43(9) 2114-2117 (2018)

Optimal generation and isolation of attosecond pulses in an overdriven ionized medium

Xiangyu Tang, Kan Wang, Baochang Li, Yanbo Chen, C. D. Lin, and Cheng Jin
Opt. Lett. 46(20) 5137-5140 (2021)

Intense attosecond pulses from laser-irradiated near-critical-density plasmas

Yuxue Zhang, Bin Qiao, Xinrong Xu, Hengxin Chang, Haiyang Lu, Cangtao Zhou, Hua Zhang, Shaoping Zhu, Matthew Zepf, and Xiantu He
Opt. Express 25(23) 29058-29067 (2017)

Chirp-controlled high-harmonic and attosecond-pulse generation via coherent-wake plasma emission driven by mid-infrared laser pulses

A. V. Mitrofanov, D. A. Sidorov-Biryukov, P. B. Glek, M. V. Rozhko, E. A. Stepanov, A. D. Shutov, S. V. Ryabchuk, A. A. Voronin, A. B. Fedotov, and A. M. Zheltikov
Opt. Lett. 45(3) 750-753 (2020)

Intense isolated few-cycle attosecond XUV pulses from overdense plasmas driven by tailored laser pulses

Zi-Yu Chen, Xiao-Ya Li, Li-Ming Chen, Yu-Tong Li, and Wen-Jun Zhu
Opt. Express 22(12) 14803-14811 (2014)