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Título
Ultrashort visible energetic pulses generated by nonlinear propagation of necklace beams in capillaries
Autor(es)
Materia
Energy transfer
Hollow core fibers
Optical parametric chirped pulse amplification
Photonic crystal fibers
Picosecond pulses
Ultrashort pulses
Fecha de publicación
2021
Citación.
Aurora Crego, Enrique Conejero Jarque, and Julio San Roman, "Ultrashort visible energetic pulses generated by nonlinear propagation of necklace beams in capillaries," Opt. Express 29, 929-937 (2021
Resumen
The generation of ultrashort visible energetic pulses is investigated numerically by the nonlinear propagation of infrared necklace beams in capillaries. We have developed a (3+1)D model that solves the nonlinear propagation equation, including the complete spatio-temporal dynamics and the azimuthal dependence of these structured beams. Due to their singular nonlinear propagation, the spectrum broadening inside the capillary extends to the visible region in a controlled way, despite the high nonlinearity, avoiding self-focusing. The results indicate that the features of these necklace beams enable the formation of visible pulses with pulse duration below 10 fs and energies of 50 μJ by soliton self-compression dynamics for different gas pressures inside the capillary.
URI
DOI
10.1364/OE.411338
Colecciones
- ALF. Artículos [297]