Impact of the Electronic Band Structure in High-Harmonic Generation Spectra of Solids
Name
PhysRevLett.118.087403.pdf
Size
724.06 KB
Format
Adobe PDF
Checksum (MD5)
5cb0f8f3e688c1f51eee14237f7cced8
Author(s)
Tancogne-Dejean, Nicolas
Mücke, Oliver D.
Rubio, Angel
Kaertner, Franz X
Date Issued
February 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Tancogne-Dejean, Nicolas et al. “Impact of the Electronic Band Structure in High-Harmonic Generation Spectra of Solids.” Physical Review Letters 118.8 (2017): n. pag. © 2017 American Physical Society
Version
Final published version
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.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.118.087403
