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Spatiotemporal evolution of femtosecond laser pulses guided in air-clad fused-silica nanoweb

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Podlipensky,  A.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  P. St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Kreuzer, C., Podlipensky, A., & Russell, P. S. J. (2010). Spatiotemporal evolution of femtosecond laser pulses guided in air-clad fused-silica nanoweb. OPTICS LETTERS, 35(16), 2816-2818.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6AC9-2
Abstract
We investigate nonlinear propagation and self-focusing of femtosecond Ti:sapphire laser pulses in an 800-nm-thick silica nanoweb fiber. Different dispersion regimes are accessible by launching TE- or TM-polarized light. Excitation in the anomalous dispersion regime (TM) results in pulse splitting and spectral broadening, which lead to supercontinuum generation, whereas, for normal dispersion (TE, excited close to a zero dispersion wavelength), self-phase modulation causes spectral broadening, which leads at higher power to beam collapse and the creation of a damage track. (C) 2010 Optical Society of America