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17 March 2023 Nonlocal and cascaded effects in nonlinear graphene nanoplasmonics
Theis Pilegaard Rasmussen, Álvaro Rodríguez Echarri, Javier García de Abajo, Joel Cox
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Proceedings Volume PC12405, Nonlinear Frequency Generation and Conversion: Materials and Devices XXII; PC124050P (2023) https://doi.org/10.1117/12.2648795
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
We theoretically explore the enhancement in nonlinear response that can be achieved by interfacing multiple graphene nanostructures in close proximity to trigger nonlocal effects associated with large gradients in the electromagnetic near-field. Our findings reveal the importance of both passive and active tuning in the design of atomically-thin nanostructures for nonlinear optical applications, and in particular emphasize the role played by nonlocal effects in generating an even-ordered nonlinear response that may contribute to other nonlinear optical processes through a cascaded interaction.
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Theis Pilegaard Rasmussen, Álvaro Rodríguez Echarri, Javier García de Abajo, and Joel Cox "Nonlocal and cascaded effects in nonlinear graphene nanoplasmonics", Proc. SPIE PC12405, Nonlinear Frequency Generation and Conversion: Materials and Devices XXII, PC124050P (17 March 2023); https://doi.org/10.1117/12.2648795
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KEYWORDS
Graphene
Nanoplasmonics
Plasmonics
Nanostructures
Near field
Near field optics
Nonlinear optics
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