We demonstrate scalable terahertz (THz) generation by focusing terawatt, two-color laser
pulses in air with a cylindrical lens. This focusing geometry creates a two-dimensional air …

We present an experimental study on pressure-dependent terahertz generation from two-
color femtosecond laser filamentation in various gases. Contrary to short-focusing geometry …

We report the generation of intense broadband THz fields (> 16 MV/cm) at a 1-kHz repetition
rate via two-color femtosecond laser filamentation in air. We find that the output THz energy …

We report the synchronized measurements of terahertz wave generation and high-harmonic
generation from aligned nitrogen molecules in dual-color laser fields. Both yields are found …

We study the generation of terahertz radiation from atoms and molecules driven by an
ultrashort fundamental laser and its second-harmonic field by solving the time-dependent …

Accurate characterization of molecular alignment distribution is critical for correctly
understanding results in strong-field experiments involving molecules. In this study, we …

In this work, we characterize the transmission properties of the focusing-laser-induced
filament by using terahertz (THz) time domain spectroscopy. Significant resonance …

Electrons driven from atom or molecule by intense dual-color laser fields can coherently
radiate high harmonics from extreme ultraviolet to soft X-ray, as well as an intense terahertz …

The tunneling ionization (TI) is the most dominated ionization process in the production of
terahertz radiation by two femtosecond lasers, although its validity above the ionization …

摘要光丝内部的超高钳制光**可诱导大气中的原子, 分子等发生隧道电离或多光子电离,
并辐射指纹荧光谱. 得益于其在复杂大气环境中能够远距离传输的特点, 飞秒激光成丝在大气 …