2014
DOI: 10.1364/josab.31.002657
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Nondiffracting and nonattenuating vortex light beams in media with nonlinear absorption of orbital angular momentum

Abstract: We show that a high-order Bessel beam propagating in a medium with nonlinear absorption is not completely absorbed, but survives in the form of a new propagation invariant vortex beam in which the beam energy and orbital angular momentum are permanently transferred to matter and at the same time refueled by spiral inward currents of energy and angular momentum. Unlike vortex solitons and dissipative vortex solitons, these vortex beams are not supported by specific dispersive nonlinearities (self-focusing or se… Show more

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Cited by 22 publications
(68 citation statements)
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“…In absence of Kerr nonlinearity (α = 0), a in and a out turn out numerically to be real, while with dispersive nonlinearities as Kerr nonlinearity arg(a out ) = −arg(a in ). Similar asymptotic analysis has been made recently for vortex Bessel beams [20]. A particular NAB and its asymptotic form in Eq.…”
Section: Nonlinear Airy Beams With Finite Nonlinear Lossessupporting
confidence: 75%
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“…In absence of Kerr nonlinearity (α = 0), a in and a out turn out numerically to be real, while with dispersive nonlinearities as Kerr nonlinearity arg(a out ) = −arg(a in ). Similar asymptotic analysis has been made recently for vortex Bessel beams [20]. A particular NAB and its asymptotic form in Eq.…”
Section: Nonlinear Airy Beams With Finite Nonlinear Lossessupporting
confidence: 75%
“…These nonlinear Airy beams (NABs) cannot have arbitrary intensities, but their peak intensity is always lower than a maximum value determined by the optical properties of medium. The mechanism of stationarity of NABs is similar to that described earlier for nonlinear Bessel beams in the same regime [19,20]. Asymptotically, a NAB behaves as a linear Airy beam except that the amplitudes, say |a in | and |a out |, of its inward and outward Hänkel components are not equal.…”
Section: Introductionsupporting
confidence: 54%
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“…En esta tesis se compendia el trabajo desarrollado para la elaboración de tres artículos publicados recientemente (Porras y Ruiz-Jiménez 2014;Ruiz-Jiménez, Nóbrega, y Porras 2015;Porras, Ruiz-Jiménez, y Losada 2015), en los que se analizan en profundidad las características de la propagación de haces de Airy y de Bessel lineales introducidos en medios Kerr que presentan absorción no lineal. En el capítulo 1 se presenta la ecuación diferencial no lineal en derivadas parciales que rige la dinámica, la ecuación de Schrödinger no lineal.…”
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