Spatio-temporal characterization of attosecond pulses from plasma mirrorsHigh-harmonic generationLaser-produced plasmasReaching light intensities above 10Wcmand up to the Schwinger limit of order 10Wcmwould enable the testing of fundamental predictions of quantum electrodynamics. A promising—yet challenging—...
This enhances the intensity of the reflected beam by simultaneously compressing it in time down to the attosecond range, and focusing it to submicrometre focal spots. Here we show that such curved relativistic mirrors can be produced when an ultra-intense laser pulse ionizes a solid target and ...
The keystone is utilizing a nonlinear propagation of many interacting spatial modes (e.g., in the so-called multimode fibers, MMF) [38], [39]. Such a nonlinear spatial mode coupling could be caused by nonlinear refraction (or attractive boson interaction in BEC [4]) characterized by the ...
The mathematical expression of an optical wave field is generally a function of the three-dimensional (3D) space and the one-dimensional (1D) time. The spatial and temporal dimensions are generally considered separable for simplification. In fact, the coupling of space and time is ubiquitous and ...
Figure 6b shows that when the number of comb lines is selected to be <10, the power coupling (the difference between the blue curve and other curves) to the light beams with the undesired rotating '≠ 3 value is >−5 dB and the mode purity of the generated rotating- revolving LG3...
Asymmetry of light absorption upon propagation of focused femtosecond laser pulses with spatiotemporal coupling through glass materials In this work, we make an attempt to numerically investigate the influence of the pulse front tilt and the lighthouse effect on the absorption of laser energy inside ...
Due to the complicated nature of the HHG process, attosecond pulses usually cannot be separated into their temporal and spatial profiles, but instead have strong chromatic aberration and are spatio-temporally coupled [2-4].Cord L. ArnoldHampus Wikmark...
An investigation is made of the feasibility of separating a trainof attosecond short-wavelength pulses from a combined field ofhigh-order harmonics. Semiclassical and quantum-mechanical theoriesof the gen- eration of high-order harmonics are used to consider theproblem of minimum duration of a ...
YangtzeDahaiYangtzeChengYangtzeQinghuaYangtzeOptics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with MatterJ. Luo, Q. Cheng, D. Xu: Generation of intense isolated attosecond pulses with high spatiotemporal quality by...
To the best of our knowledge, this represents the shortest pulse durations reported for direct vortex shaping and detection with spatial light modulators. This access to space-time coupling effects with sub-femtosecond time resolution opens new prospects for tailored twisted light transients of ...