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Journal articles
Nonlinear Self-Confined Plasmonic Beams: Experimental Proof
Abstract : Controlling low power light beam self-confinement with ultrafast response time opens up opportunities for the development of signal processing in microdevices. The combination of a highly nonlinear medium with the tight confinement of plasmonic waves offers a viable but challenging configuration to reach this goal. In the present work, a beam propagating in a plasmonic structure that undergoes a strongly enhanced self-focusing effect is reported for the first time. The structure consists of a chalcogenide-based four-layer planar geometry engineered to limit plasmon propagation losses while exhibiting efficient Kerr self-focusing at moderate power. As expected from theory, only TM-polarized waves exhibit such a behavior. Different experimental arrangements are tested at telecom wavelengths and compared with simulations obtained from a dedicated model. The observed efficient beam reshaping takes place over a distance as low as 100 μm, which unlocks new perspectives for the development of integrated photonic devices.
Cited literature [57 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02961176
Contributor : Laurent Jonchère <>
Submitted on : Monday, October 19, 2020 - 10:10:17 AM
Last modification on : Tuesday, October 27, 2020 - 2:34:30 PM
Contributor : Laurent Jonchère <>
Submitted on : Monday, October 19, 2020 - 10:10:17 AM
Last modification on : Tuesday, October 27, 2020 - 2:34:30 PM
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Kuriakose et al-2020-Nonlinear...
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