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Impact of the Electronic Band Structure in High-Harmonic Generation Spectra of Solids

Nicolas Tancogne-Dejean, Oliver D. Mücke, Franz X. Kärtner, and Angel Rubio
Phys. Rev. Lett. 118, 087403 – Published 24 February 2017
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Abstract

An accurate analytic model describing the microscopic mechanism of high-harmonic generation (HHG) in solids is derived. Extensive first-principles simulations within a time-dependent density-functional framework corroborate the conclusions of the model. Our results reveal that (i) the emitted HHG spectra are highly anisotropic and laser-polarization dependent even for cubic crystals; (ii) the harmonic emission is enhanced by the inhomogeneity of the electron-nuclei potential; the yield is increased for heavier atoms; and (iii) the cutoff photon energy is driver-wavelength independent. Moreover, we show that it is possible to predict the laser polarization for optimal HHG in bulk crystals solely from the knowledge of their electronic band structure. Our results pave the way to better control and optimize HHG in solids by engineering their band structure.

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  • Received 29 September 2016

DOI:https://doi.org/10.1103/PhysRevLett.118.087403

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Nicolas Tancogne-Dejean1,2,*, Oliver D. Mücke3,4, Franz X. Kärtner3,4,5,6, and Angel Rubio1,2,3,5,†

  • 1Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
  • 2European Theoretical Spectroscopy Facility (ETSF), Luruper Chaussee 149, 22761 Hamburg, Germany
  • 3Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
  • 4The Hamburg Center for Ultrafast Imaging, Luruper Chaussee 149, 22761 Hamburg, Germany
  • 5Physics Department, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
  • 6Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA

  • *nicolas.tancogne-dejean@mpsd.mpg.de
  • angel.rubio@mpsd.mpg.de

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Issue

Vol. 118, Iss. 8 — 24 February 2017

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