High-order harmonic analysis of anisotropic petahertz photocurrents in solids | Zendy

A. А. Lanin | Zendy; Е. А. Степанов | Zendy; A. V. Mitrofanov | Zendy; D. A. SidorovBiryukov | Zendy; A. B. Fedotov | Zendy; А. М. Желтиков | Zendy

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High-order harmonic analysis of anisotropic petahertz photocurrents in solids

Author(s) -

A. А. Lanin,

Е. А. Степанов,

A. V. Mitrofanov,

D. A. SidorovBiryukov,

A. B. Fedotov,

А. М. Желтиков

Publication year - 2019

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.44.001888

Subject(s) - harmonics , polarization (electrochemistry) , optics , high harmonic generation , brillouin zone , harmonic analysis , anisotropy , materials science , physics , dispersion (optics) , electron , laser , quantum mechanics , chemistry , mathematical analysis , mathematics , voltage

Polarization maps of high-order harmonics are shown to enable a full vectorial characterization of petahertz electron currents generated in a crystalline solid by an ultrashort laser driver. As a powerful resource of this methodology, analysis of energy-momentum dispersion landscapes, defined by the electron band structure, can help identify, as our analysis shows, special directions within the Brillouin zone that can provide a preferable basis for polarization-sensitive high-harmonic mapping of anisotropic petahertz photocurrents in solids.

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