137 citations · 384 across the 14 of their papers we have counts for
14 papers
Bright 25-attosecond light pulses reach the one atomic unit of time
Jingsong Gao, Mahmudul Hasan, Hao Liang +8
Generating ever-shorter and brighter light pulses has long been a central pursuit in ultrafast science, as it benchmarks our ability to create and manipulate the coherence on the i…
Revisiting self-seeding mechanism by generating vector ultraviolet N lasing
Jingsong Gao, Yang Wang, Jiahao Dong +5
An intense femtosecond laser pulse can generate ultraviolet air lasing, offering a promising remote light source. A long-standing hypothesis is whether it is seeded by a self-gener…
Generation and control of extreme ultraviolet free-space optical skyrmions with high harmonic generation
Yiqi Fang, Yunquan Liu
Optical skyrmion serves as a crucial interface between optics and topology. Recently, it has attracted great interest in linear optics. Here, we theoretically introduce a framework…
Controlling Photon Transverse Orbital Angular Momentum in High Harmonic Generation
Yiqi Fang, Shengyue Lu, Yunquan Liu
High harmonic generation (HHG) with longitudinal optical orbital angular momentum has attracted much attention over the past decade. Here, we present the first study on the HHG wit…
Photoelectronic mapping of spin-orbit interaction of intense light fields
Yiqi Fang, Meng Han, Peipei Ge +6
The interaction between a quantum particle's spin angular momentum and its orbital angular momentum is ubiquitous in nature. In optics, the spin-orbit optical phenomenon is closely…
Amplification of light pulses with orbital angular momentum (OAM) in nitrogen ions lasing
Haicheng Mei, Jingsong Gao, Kailu Wang +6
Nitrogen ions pumped by intense femtosecond laser pulses give rise to optical amplification in the ultraviolet range. Here, we demonstrated that a seed light pulse carrying orbital…
Generating optical cat states via quantum interference of multi-path free-electron-photons interactions
Feng-Xiao Sun, Yiqi Fang, Qiongyi He +1
The novel quantum effects induced by the free-electron-photons interaction have attracted increasing interest due to their potential applications in ultrafast quantum information p…
Topologically Protected Strong-Interaction of Photonics with Free Electron
Jing Li, Yiqi Fang, Yunquan Liu
We propose a robust scheme of studying the strong interactions between free electrons and photons using topological photonics. Our study reveals that the topological corner state c…
Controlling Magnetic and Electric Nondipole Effects with Synthesized Two Perpendicularly Propagating Laser Fields
Yankun Dou, Yiqi Fang, Peipei Ge +1
Nondipole effects are ubiquitous and crucial in light-matter interaction. However, they are too weak to be directly observed. In strong-field physics, motion of electrons is mainly…
Structured air lasing of N2+
Jingsong Gao, Xiang Zhang, Yang Wang +8
Structured light has attracted great interest in scientific and technical fields. Here, we demonstrate the first generation of structured air lasing in N2+ driven by 800 nm femtose…
Perspective: Ultrafast Imaging of Molecular Dynamics Using Ultrafast Low-Frequency Lasers, X-ray Free Electron Laser and Electron Pulses
Ming Zhang, Zhenning Guo, Xiaoyu Mi +2
The requirement of high space-time resolution and brightness is a great challenge for imaging atomic motion and making molecular movies. Important breakthroughs in ultrabright tabl…
Spatiotemporal steering of photoelectron emission in multiphoton above-threshold ionization
Xiaochun Gong, Cheng Lin, Mingming Liu +11
We experimentally demonstrate spatiotemporal steering of photoelectron emission in multiphoton above-threshold single ionization of atoms exposed to a phase-controlled orthogonally…
Streaking temporal double slit interference by an orthogonal two-color laser field
Martin Richter, Maksim Kunitski, Markus Schöffler +5
We investigate electron momentum distributions from single ionization of Ar by two orthogonally polarized laser pulses of different color. The two-color scheme is used to experimen…
KxFe2-ySe2 single crystals: Floating-zone growth, Transport and Structural properties
Y. Liu, Z. C. Li, W. P. Liu +5
Single crystals of superconducting KxFe2-ySe2 have been grown with the optical floating-zone technique under application of 8 bar of argon pressure. We found that large and high qu…