156 citations · 269 across the 9 of their papers we have counts for
9 papers
On-chip high energy photon radiation source based on microwave-dielectric undulator
Fuming Jiang, Xinyu Xie, Chengpu Liu +1
A new on-chip light source configuration has been proposed, which utilizes the interaction between microwave and a dielectric nanopillar array to generate a periodic electromagneti…
A modified FDTD algorithm for processing ultra-wide-band response
Huicheng Guo, Henglei Du, Chengpu Liu
Finite-difference time-domain (FDTD) is an effective algorithm for resolving Maxwell equations directly in time domain. Although FDTD has obtained sufficient development, there sti…
High-quality femtosecond laser surface micro/nano-structuring assisted by a thin frost layer
Wenhai Gao, Kai Zheng, Yang Liao +9
Femtosecond laser ablation has been demonstrated to be a versatile tool to produce micro/nanoscale features with high precision and accuracy. However, the use of high laser fluence…
Chirp control of directional current in monolayer graphene by intense few-cycle laser
Erheng Wu, Qiang Zhan, Zhanshan Wang +2
The residual current density in monolayer graphene driven by an intense few-cycle chirped laser pulse is investigated via numerical solution of the time-dependent Schrödinger equat…
Generation of nonlinear vortex precursors
Yue-Yue Chen, Xun-Li Feng, Chengpu Liu
We numerically study the propagation of a few-cycle pulse carrying orbital angular momentum (OAM) through a dense atomic system. Nonlinear precursors consisting of high-order vorte…
The origin of the Redshift Spikes in the reflection spectrum of a Few-cycle Pulse in a Dense Medium
Yue-Yue Chen, Xun-Li Feng, Zhi-Zhan Xu +1
We give a detailed description about the reflected spectrum of a few-cycle pulse propagating through a resonant dense medium. An unexpected low-frequency spike appeared in the red…
Coulomb focusing at above-threshold ionization in elliptically polarized mid-infrared strong laser fields
Chengpu Liu, Karen Z. Hatsagortsyan
The role of Coulomb focusing in above-threshold ionization in an elliptically polarized mid-infrared strong laser field is investigated within a semiclassical model incorporating t…
Wavelength and intensity dependence of multiple forward scattering at above-threshold ionization in mid-infrared strong laser fields
Chengpu Liu, Karen Z. Hatsagortsyan
The nonperturbative role of multiple forward scattering for Coulomb focusing in mid-infrared laser fields and its dependence on a laser intensity and wavelength are investigated fo…
Origin of Unexpected Low Energy Structure in Photoelectron Spectra Induced by Mid-Infrared Strong Laser Fields
Chengpu Liu, Karen Z. Hatsagortsyan
Using a semiclassical model which incorporates tunneling and Coulomb field effects, the origin of the unexpected low-energy structure (LES) in above-threshold ionization spectrum o…