Temperature-induced dephasing in high-order harmonic generation from solids

Abstract

High harmonic generation (HHG) in solid and gaseous targets has been proven to be a powerful avenue for the generation of attosecond pulses, whereas the influence of electron-phonon scattering on HHG is a critical outstanding problem. Here we first introduce a temperature dependent lattice vibration model by characterizing the spacing fluctuation. Our results reveal that (i) structural disorder induced by lattice vibration does not lead to generation of even-order harmonics; (ii) dephasing of HHG occurs as the lattice temperature is growing; (iii) an open-trajectory picture predicts the maximal photon energy in the temperature-dependent HHG spectra. Moreover, a formula assessing dephasing time with lattice temperature is proposed to identify the timescale of electron-phonon scattering. This work paves a way to study non-Born-Oppenheimer effect in solids driven by strong field.

References in corpus (4)

• Nonlinear electromagnetic response of graphene: Frequency multiplication and the self-consistent-field effects
• Origin of anomalous anharmonic lattice dynamics of lead telluride
• Probing dephasing time of crystals via spectral properties of high-harmonic generation
• Orientation-dependent transition rule in high-order harmonic generation from solids

Cited by in corpus (5)

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• Tracking doublon-holon dynamics in high-harmonic generation from Mott insulators
• Modeling high-order harmonic generation in quantum dots using a real-space tight-binding approach