Temporal reflection and refraction in the presence of a zero-nonlinearity wavelength
We put forth a theoretical model allowing for the analysis of short-pulse interactions at time boundaries in waveguides with arbitrary frequency-dependent nonlinear profiles, in particular those exhibiting a zero-nonlinearity wavelength. Moreover, this is performed within a photon-conserving framewo...
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| Veröffentlicht in: | Optics letters 2023-01, Vol.48 (2), p.339-342 |
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| container_title | Optics letters |
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| creator | Sparapani, A C Bonetti, J Linale, N Hernandez, S M Fierens, P I Grosz, D F |
| description | We put forth a theoretical model allowing for the analysis of short-pulse interactions at time boundaries in waveguides with arbitrary frequency-dependent nonlinear profiles, in particular those exhibiting a zero-nonlinearity wavelength. Moreover, this is performed within a photon-conserving framework, thus circumventing use of the nonlinear Schrödinger equation in such scenarios, as it may lead to unphysical outcomes. Results indicate that the waveguide zero-nonlinearity wavelength has a great influence on said interactions, specifically by defining spectral bands where either signal total reflection or signal transmission can occur. We believe these findings to be of relevance in the area of all-optical switching schemes based on the interaction of short pulses in nonlinear media. |
| doi_str_mv | 10.1364/OL.475597 |
| format | Article |
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| ispartof | Optics letters, 2023-01, Vol.48 (2), p.339-342 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2765779317 |
| source | Optica Publishing Group Journals |
| subjects | Nonlinearity Optical switching Schrodinger equation Short pulses Signal reflection Signal transmission Spectral bands Waveguides |
| title | Temporal reflection and refraction in the presence of a zero-nonlinearity wavelength |
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