Near-infrared spatial solitons in heavy metal oxide glasses.
We demonstrate two-dimensional spatial solitons excited by near-infrared picosecond pulses in Kerr-like heavy metal oxide glasses with a nonlinearity one order of magnitude larger than in fused silica. Solitons were obtained at 820 nm owing to the presence of multiphoton absorption, which prevented catastrophic collapse.
NooEL-Nonlinear Optics and OptoElectronics Lab, Consorzio Nazionale Interuniversitario per le Scienze Fisichedella Materia, Istituto Nazionale di Fisica Nucleare, and Department of Electronic Engineering-University Roma Tre, Rome, Italy.
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Pasquazi
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Stivala
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Assanto
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Gonzalo
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Solis
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Afonso