Polarization gating and circularly-polarized high harmonic generation using plasmonic enhancement in metal nanostructures
作者： A. Husakou , F. Kelkensberg , J. Herrmann , M. J. J. Vrakking
DOI: 10.1364/OE.19.025346
关键词: Electric field 、 Electron 、 Attosecond 、 Circular polarization 、 Polarization (waves) 、 Gating 、 Materials science 、 Optics 、 High harmonic generation 、 Plasmon
摘要: We investigate possibilities to utilize field enhancement by specifically designed metal nanostructures for the generation of single attosecond pulses using polarization gating technique. predict isolated 59-attosecond-long 15-fs pump with only a 0.6 TW/cm2 intensity. Our simulations also indicate possibility generate previously inaccessible high-harmonics circular an ensemble vertically and horizontally orientated bow-tie structures. In numerical simulation we used extended Lewenstein model, which includes spatial inhomogeneity in hot spots collisions electrons surface.
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