Application of the Green function formalism to the interplay between avalanche and multiphoton ionization induced by optical pulses

Abstract

A fundamental brick of light-matter interaction at large optical intensities is the generation of a plasma. The optically-induced plasma in turn plays a fundamental role in determining the optical propagation. The plasma generation is a result of the interplay between multi-photon, tunnel and avalanche ionization. Here we use the basic rate equations to discuss an analytical model for the interaction between these physical effects. After defining a nonlinear impulse response for the system, we describe how the interplay depends on the features of the optical pulses. Our approach strongly simplifies the modelling of the propagation of ultrashort-pulses, paving the way to a much easier and faster interpretation of experimental observations, with potential impact on the broad fields of ultrafast light-matter interaction and laser micro-machining.

arXiv comment8 pages, 6 figures. Submitted to PRB

References in corpus (8)

• Array Programming with NumPy
• Floquet Engineering of Quantum Materials
• Double-slit time diffraction at optical frequencies
• Linearons: highly non-instantaneous solitons in liquid-core photonic crystal fibers
• Are there universal signatures of topological phases in high harmonic generation? Probably not
• Plasma formation and relaxation dynamics in fused silica driven by femtosecond short-wavelength infrared laser pulses
• Wavelength-dependence of laser excitation process on silicon surface
• Ionization dynamics and damage conditions for transparent materials irradiated with Mid-Infrared femtosecond pulses