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Scientists develop numerical capability of laser-driven X-ray imaging（图）
Scientists numerical capability laser-driven X-ray imaging
2020/7/3
A team of scientists led by University of Nevada Reno physicist Hiroshi Sawada has demonstrated that numerical modeling accurately reproduces X-ray images using laser-produced X-rays.The ima...
Science fiction is full of fanciful devices that allow light to interact forcefully with matter, from light sabers to photon-drive rockets. In recent years, science has begun to catch up; some results...
Optical dipole force on ladder-like three-level atomic systems driven by chirped few-cycle-pulse laser fields
Optical dipole force ladder-like three-level atomic systems chirped few-cycle-pulse laser fields Optics
2012/5/17
We report a study on the optical dipole force in a ladder like three level atomic systems in the context of coherent population transfer with the chirped few-cycle-pulse laser fields. The phenomenon o...
Singularity-driven Second and Third Harmonic Generation in a ε-near-zero nanolayer
Singularity-driven Harmonic Generation ε-near-zero nanolayer
2011/8/4
Abstract: We show a new path to {\epsilon}~0 materials without resorting to metal-based metamaterial composites. A medium that can be modeled using Lorentz oscillators usually displays {\epsilon}=0 cr...
Emission characteristics of laser driven, dissipative coupled cavity systems
Emission characteristics laser driven dissipative coupled cavity systems
2010/11/22
We consider a laser driven and dissipative system of two coupled cavities with Jaynes-Cummings
nonlinearity. In particular, we investigate both incoherent and coherent laser driving, corresponding to...
Forcibly driven coherent soft phonons in GeTe with intense THz-rate pump fields
coherent soft phonons GeTe intense THz-rate pump fields
2010/11/23
We propose an experimental technique to generate large amplitude coherent phonons with irradiation of THz-rate pump pulses and to study the dynamics of phase transition in GeTe ferroelectrics.When a s...
Spectral dependence of purely-Kerr driven filamentation in air and argon
Spectral dependence purely-Kerr driven filamentation argon
2010/11/16
Based on numerical simulations, we show that higher-order nonlinear indices (up to $n_8$ and $n_{10}$, respectively) of air and argon have a dominant contribution to both focusing and defocusing in t...
Qubit Entanglement Dephasing Dynamics Driven by a Bath of Spins
Qubit Entanglement Dephasing Dynamics Driven Bath of Spins
2010/10/19
We study the entanglement dynamics for a two-spin system coupled to a spin environment of
different configurations by z-x type interaction. The models considered in this paper are solved both analyti...