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Title: Orientation dependence of temporal and spectral properties of high-order harmonics in solids [Orientation dependence of high-harmonic temporal and spectral properties in solids]

Journal Article · · Physical Review A
 [1];  [2];  [2];  [2];  [1];  [1];  [1]
  1. Louisiana State Univ., Baton Rouge, LA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)

We investigate the connection between crystal symmetry and temporal and spectral properties of high-order harmonics in solids. We calculate the orientation-dependent harmonic spectrum driven by an intense, linearly polarized infrared laser field, using a momentum-space description of the generation process in terms of strong-field-driven electron dynamics on the band structure. We show that the orientation dependence of both the spectral yield and the subcycle time profile of the harmonic radiation can be understood in terms of the coupling strengths and relative curvatures of the valence band and the low-lying conduction bands. In particular, we show that in some systems this gives rise to a rapid shift of a quarter optical cycle in the timing of harmonics in the secondary plateau as the crystal is rotated relative to the laser polarization. Here, we address recent experimental results in MgO and show that the observed change in orientation dependence for the highest harmonics can be interpreted in the momentum space picture in terms of the contributions of several different conduction bands.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
PHY-1403236; PHY-1713671; AC02-76SF00515
OSTI ID:
1416562
Alternate ID(s):
OSTI ID: 1413821
Journal Information:
Physical Review A, Vol. 96, Issue 6; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (10)

Interferometry of dipole phase in high harmonics from solids journal December 2018
Attosecond spectral singularities in solid-state high-harmonic generation journal January 2020
High-order harmonic generation from 2D periodic potentials in circularly and bichromatic circularly polarized laser fields journal October 2018
High order harmonic generation in solids: a review on recent numerical methods journal January 2019
Probing periodic potential of crystals via strong-field re-scattering journal May 2018
Field-free orientation of LiH molecule induced by two-color femtosecond and terahertz laser pulses journal April 2019
Contribution of Floquet-Bloch states to high-order harmonic generation in solids journal July 2019
Orientation dependence of high-order harmonic generation in nanowire journal March 2019
Two-dimensional imaging of energy bands from crystal orientation dependent higher-order harmonic spectra in h − BN journal August 2018
Attosecond spectral singularities in solid-state high-harmonic generation conference January 2020

Figures / Tables (5)