Spatio-Temporal and Spectral Transformation of Femtosecond Pulsed Beams with Phase Dislocation Propagating Under Conditions of Self-action in Transparent Solid-State DielectricsстатьяГлава в книге
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Дата последнего поиска статьи во внешних источниках: 3 июля 2019 г.
Аннотация:Self-action of a femtosecond optical vortex in fused silica at a
wavelength of 1900 nm is analyzed by means of numerical simulations. The
formation of a multi-focus ring structure is demonstrated. We show that selffocusing
in a ring of relatively large radius occurs without plasma generation.
The frequency spectrum of the pulse is broadening mainly into the Stokes
band.