Effect of multiple conduction bands on high-harmonic emission from dielectrics

2015/01/14 by Peter G. Hawkins, Misha Ivanov, Misha Yu. Ivanov +1 · 3 citations
Chemistry · Engineering · Physics and Astronomy · #Laser-Matter Interactions and Applications #Laser-induced spectroscopy and plasma #Mass Spectrometry Techniques and Applications

paper · doi:10.1103/physreva.91.013405

openalex publication_date 2015/01/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We find that, for sufficiently strong mid-IR fields, transitions between different conduction bands play an important role in the generation of high-order harmonics in a dielectric. The transitions make a significant contribution to the harmonic signal, and they can create a single effective band for the motion of an electron wave packet. We show how high harmonic spectra produced during the interaction of ultrashort laser pulses with periodic solids provide a spectroscopic tool for understanding the effective band structure that controls electron dynamics in these media.

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• High-harmonic generation from Bloch electrons in solids
• Circular dichroism in higher-order harmonic generation: Heralding topological phases and transitions in Chern insulators
• Microscopic electron dynamics in nonlinear optical response of solids

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