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Nonlinear control of tunneling through an epsilon-near-zero channel

Powell, David; Alu, Andrea; Edwards, Brian; Vakil, Ashkan; Kivshar, Yuri; Engheta, Nader

Description

The epsilon-near-zero (ENZ) tunneling phenomenon allows full transmission of waves through a narrow channel even in the presence of a strong geometric mismatch. Here we experimentally demonstrate nonlinear control of the ENZ tunneling by an external field, as well as self-modulation of the transmission resonance due to the incident wave. Using a waveguide section near cut-off frequency as the ENZ system, we introduce a diode with tunable and nonlinear capacitance to demonstrate both these...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/39797
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.79.245135

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