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Nanoscale plasmonic memristor with optical readout functionality
Authors
,
B Desiatov
+6 more
A Emboras
I Goykhman
U Levy
N Mazurski
J Shappir
L Stern
Publication date
11 December 2013
Publisher
Abstract
We experimentally demonstrate for the first time a nanoscale resistive random access memory (RRAM) electronic device integrated with a plasmonic waveguide providing the functionality of optical readout. The device fabrication is based on silicon on insulator CMOS compatible approach of local oxidation of silicon, which enables the realization of RRAM and low optical loss channel photonic waveguide at the same fabrication step. This plasmonic device operates at telecom wavelength of 1.55 μm and can be used to optically read the logic state of a memory by measuring two distinct levels of optical transmission. The experimental characterization of the device shows optical bistable behavior between these levels of transmission in addition to well-defined hysteresis. We attribute the changes in the optical transmission to the creation of a nanoscale absorbing and scattering metallic filament in the amorphous silicon layer, where the plasmonic mode resides. © 2013 American Chemical Society
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Last time updated on 15/07/2020