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Optical Studies on VO2 Thin Films

Published online by Cambridge University Press:  14 May 2015

Lei Wang ,
Melissa Beebe ,
Scott E. Madaras ,
John M. Klopf ,
Elizabeth Radue ,
Zhaozhu Li ,
Russell A. Wincheski ,
Jiwei Lu ,
Stuart A. Wolf  and
Irina Novikova
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Lei Wang
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
Melissa Beebe
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
Scott E. Madaras
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
John M. Klopf
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
Elizabeth Radue
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
Zhaozhu Li
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
Russell A. Wincheski
Affiliation:
NASA Langley Research Center, Hampton, VA 23681, U.S.A.
Jiwei Lu
Affiliation:
Department of Material Sciences and Engineering, University of Virginia, Charlottesville, VA 22904, U.S.A.
Stuart A. Wolf
Affiliation:
Department of Material Sciences and Engineering, University of Virginia, Charlottesville, VA 22904, U.S.A. Department of Physics, University of Virginia, Charlottesville, VA 22904, U.S.A.
Irina Novikova
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
Rosa A. Lukaszew
Affiliation:
Department of Physics, College of William and Mary, Williamsburg, VA 23187, U.S.A.
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Abstract

We have been interested in the plasmonic properties of alternative conducting materials to metals, such as conducting oxides, and we have recently expanded our studies to include highly correlated oxides, such as vanadium dioxide (VO2) thin films. VO2 exhibits a metal-insulator transition (MIT) just above ambient temperature at ∼ 340K. Interestingly, this transition can be induced thermally, optically or applying electric fields. Across the MIT, the optical properties are completely modified over a broad frequency range. We will present our recent optical investigations on the photon induced transition studies on such films, as well as the surface plasmon resonance (SPR) modulation in nanopatterned Au gratings by the thermally induced MIT in VO2 thin films, addressing possibilities of ultrafast SPR modulation with VO2.

Keywords

thin filmmetal-insulator transitionoptical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1803: Symposium QQ – Plasma-Based Materials Science and Engineering , 2015 , mrss15-2136535
Copyright
Copyright © Materials Research Society 2015 

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