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Direct generation of relativistic isolated attosecond pulses in transmission from laser-driven plasmas

Authors :
Jiang, Yan
Chen, Zi-Yu
Liu, Zhanjun
Cao, Lihua
Zheng, Chunyang
Xie, Rui
Chao, Yue
He, Xiantu
Source :
Optics Letters; March 2021, Vol. 46 Issue: 6 p1285-1288, 4p
Publication Year :
2021

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.

Details

Language :
English
ISSN :
01469592 and 15394794
Volume :
46
Issue :
6
Database :
Supplemental Index
Journal :
Optics Letters
Publication Type :
Periodical
Accession number :
ejs55490907