Three-dimensional light bullets in arrays of waveguides.
نویسندگان
چکیده
We report the first experimental observation of three-dimensional light bullets, excited by femtosecond pulses in a system featuring quasi-instantaneous cubic nonlinearity and a periodic, transversally modulated refractive index. Stringent evidence of the excitation of light bullets is based on time-gated images and spectra which perfectly match our numerical simulations. Furthermore, we reveal a novel evolution mechanism forcing the light bullets to follow varying dispersion or diffraction conditions, until they leave their existence range and decay.
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عنوان ژورنال:
- Physical review letters
دوره 105 26 شماره
صفحات -
تاریخ انتشار 2010