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Article Dans Une Revue Physical Review A Année : 2021

Ultrabroadband beam splitting in a dissipative system of three waveguides

Résumé

We show that a system of three parallel waveguides, among which the central one is dissipative, leads to an ultrabroadband power splitting associated with an overall 50% power loss. The present approach is reminiscent of non-Hermitian systems in quantum mechanics and does not require a perfect effective index matching between the external and the central waveguides. The present concept does not need any slow adiabatic evolution of the waveguide parameters and may therefore be realized over very short device lengths, especially in the case where the central waveguide is of the plasmonic type.
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Dates et versions

hal-03182451 , version 1 (26-03-2021)

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Rim Alrifai, Virginie Coda, Jonathan Peltier, Andon A Rangelov, Germano Montemezzani. Ultrabroadband beam splitting in a dissipative system of three waveguides. Physical Review A, 2021, 103 (2), ⟨10.1103/PhysRevA.103.023527⟩. ⟨hal-03182451⟩
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