From higher-order Kerr nonlinearities to quantitative modeling of 3rd and 5th harmonic generation in argon

Abstract

The recent measurement of negative higher-order Kerr effect (HOKE) terms in gases has given rise to a controversial debate, fed by its impact on short laser pulse propagation. By comparing the experimentally measured yield of the third and fifth harmonics, with both an analytical and a full comprehensive numerical propagation model, we confirm the absolute and relative values of the reported HOKE indices.

3 pages, 2 figures

References in corpus (5)

• Ultrashort filaments of light in weakly-ionized, optically-transparent media
• Higher-order Kerr terms allow ionization-free filamentation in gases
• Experimental Tests of the New Paradigm for Laser Filamentation in Gases
• Global fits of the Minimal Universal Extra Dimensions scenario
• Spectral dependence of purely-Kerr driven filamentation in air and argon

Cited by in corpus (8)

• Transition from plasma- to Kerr-driven laser filamentation
• Optical nonlinearity in Ar and N${}_2$ near the ionization threshold
• On the Saturation of the Nonlinear Refractive Index in Atomic Gases
• Effect of a plasma grating on pump-probe experiments near the ionization threshold in gases
• Third and fifth harmonics generation by tightly focused femtosecond pulses at 2.2 μm wavelength in air
• Comparative investigation of third and fifth harmonic generation in atomic and molecular gases driven by mid-infrared ultrafast laser pulses
• Periodic and localized waves in parabolic-law media with third- and fourth-order dispersions
• Ab-initio calculations of laser-atom interactions reveal harmonics feedback during macroscopic propagation