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Plasmonic nanoscale modulators and tunable metasurfaces

Atwater, Harry A. (2015) Plasmonic nanoscale modulators and tunable metasurfaces. In: 2015 Summer Topicals Meeting Series (SUM). IEEE , Piscataway, NJ, pp. 215-216. ISBN 978-1-4799-7467-2.

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We experimentally demonstrate an ultracompact PlasMOStor, a plasmon slot waveguide field-effect modulator based on a transparent conducting oxide active region, as illustrated in Fig. 1. By electrically modulating the conducting oxide material deposited into the gaps of highly confined plasmonic slot waveguides, we demonstrate field-effect dynamics giving rise to modulation with high dynamic range (2.71 dB/μm) and low waveguide loss (~0.45 dB/μm). The large modulation strength is due to the large change in complex dielectric function when the signal wavelength approaches the surface plasmon resonance in the voltage-tuned conducting oxide accumulation layer. The results provide insight about the design of ultracompact, nanoscale modulators for future integrated nanophotonic circuits.

Item Type:Book Section
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Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2015 IEEE.
Record Number:CaltechAUTHORS:20150915-083003710
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Official Citation:Atwater, Harry A., "Plasmonic nanoscale modulators and tunable metasurfaces," in Summer Topicals Meeting Series (SUM), 2015 , vol., no., pp.215-216, 13-15 July 2015 doi: 10.1109/PHOSST.2015.7248274 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60240
Deposited By: Tony Diaz
Deposited On:15 Sep 2015 19:13
Last Modified:10 Nov 2021 22:31

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