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Unity-Order Index Change in Transparent Conducting Oxides at Visible Frequencies

Feigenbaum, Eyal and Diest, Kenneth and Atwater, Harry A. (2010) Unity-Order Index Change in Transparent Conducting Oxides at Visible Frequencies. Nano Letters, 10 (6). pp. 2111-2116. ISSN 1530-6984. doi:10.1021/nl1006307.

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We report a method for obtaining unity-order refractive index changes in the accumulation layer of a metal-oxide-semiconductor heterostructure with conducting oxide as the active material. Under applied field, carrier concentrations at the dielectric/conducting oxide interface increase from 1 × 10^(21)/cm^3 to 2.8 × 10^(22)/cm^3, resulting in a local refractive index change of 1.39 at 800 nm. When this structure is modeled as a plasmonic waveguide, the change corresponds to a modal index change of 0.08 for the plasmonic mode.

Item Type:Article
Related URLs:
URLURL TypeDescription
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2010 American Chemical Society. Received for review: 02/22/2010. Published on Web: 05/18/2010. We thank S. Burgos, A. Leenheer, D. O’Carroll, G. Kimball, and G. Miller for engaging discussions and technical assistance. We acknowledge support by the Office of Basic Energy Sciences under Contract Number DOE DE-FG02-07ER46405 and under the Air Force Office of Scientific Research under Grant FA9550- 09-1-0673. E.F. acknowledges fellowship support from the Rothschild Foundation.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-07ER46405
Air Force Office of Scientific Research (AFOSR)FA9550-09-1-0673
Rothschild FoundationUNSPECIFIED
Subject Keywords:Active plasmonics; index modulation; transparent conducting oxides; indium tin oxide; electro-optical devices; waveguides
Issue or Number:6
Record Number:CaltechAUTHORS:20100624-113409012
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Official Citation:Unity-Order Index Change in Transparent Conducting Oxides at Visible Frequencies Eyal Feigenbaum, Kenneth Diest, Harry A. Atwater Nano Letters 2010 10 (6), 2111-2116
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18797
Deposited By: Tony Diaz
Deposited On:03 Aug 2010 21:21
Last Modified:08 Nov 2021 23:47

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