Plasmonic nonlinearities for terahertz applications

Martin Mittendorff

doi:10.1117/12.3024394

18 June 2024 Plasmonic nonlinearities for terahertz applications

Martin Mittendorff

Proceedings Volume PC12994, Terahertz Photonics III; PC1299401 (2024) https://doi.org/10.1117/12.3024394
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Plasmonic structures like ribbons or disks can strongly enhance the light-matter interaction of two-dimensional electron gases at resonance. This can be exploited to fabricate devices with improved performance. In addition, also the optical nonlinear properties of the material is enhanced. Here we present a series of pump-probe measurements on various samples, mostly based on graphene, to disentangle the different effects. Besides the optical nonlienarities, circular plasmons can be excited with circularly polarized radiation, resulting in a uni-polar magnetic field in the vicinity of the plasmonic element, due to the inverse Faraday effect. This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) Project No. 278162697-SFB 1242.

Conference Presentation

Citation Download Citation

Martin Mittendorff "Plasmonic nonlinearities for terahertz applications", Proc. SPIE PC12994, Terahertz Photonics III, PC1299401 (18 June 2024); https://doi.org/10.1117/12.3024394

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