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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 20 — Oct. 15, 2012
  • pp: 4335–4337

Surface plasmon polaritons in VO2 thin films for tunable low-loss plasmonic applications

L. Wang, E. Radue, S. Kittiwatanakul, C. Clavero, J. Lu, S. A. Wolf, I. Novikova, and R. A. Lukaszew  »View Author Affiliations

Optics Letters, Vol. 37, Issue 20, pp. 4335-4337 (2012)

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We report on the first observation of optically excited surface plasmon polaritons (SPPs) in the conducting phase of vanadium dioxide ( VO 2 ) thin films. VO 2 is low-loss optical material that undergoes an insulator-metal transition (IMT) under suitable thermal, optical, or electrical stimulation, thus enabling tunable SPP excitation of the conducting phase. Here we applied IR light (1520 nm) to excite SPPs while thermally inducing the IMT by changing the VO 2 temperature, and observed a clear trend from nonabsorption in the insulator phase to high absorption in the conducting phase due to SPP excitation in the latter phase. Tunable SPPs in VO 2 enable a range of opportunities for low-loss optoplasmonic applications since the rate of the IMT excitation can also be tailored.

© 2012 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(310.0310) Thin films : Thin films
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optics at Surfaces

Original Manuscript: July 11, 2012
Revised Manuscript: September 3, 2012
Manuscript Accepted: September 12, 2012
Published: October 12, 2012

L. Wang, E. Radue, S. Kittiwatanakul, C. Clavero, J. Lu, S. A. Wolf, I. Novikova, and R. A. Lukaszew, "Surface plasmon polaritons in VO2 thin films for tunable low-loss plasmonic applications," Opt. Lett. 37, 4335-4337 (2012)

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