Title

Control of Plasmonic Nanoantennas by Reversible Metal-insulator Transition

Authors

Yohannes Abate, Georgia State UniversityFollow
Robert E. Marvel, Vanderbilt UniversityFollow
Jed I. Ziegler, Vanderbilt UniversityFollow
Sampath Gamage, Georgia State UniversityFollow
Mohammad H. Javani, Georgia State UniversityFollow
Mark I. Stockman, Georgia State UniversityFollow
Richard F. Haglund, Vanderbilt UniversityFollow

Document Type

Article

Publication Date

9-2015

Abstract

We demonstrate dynamic reversible switching of VO2 insulator-to-metal transition (IMT) locally on the scale of 15 nm or less and control of nanoantennas, observed for the first time in the near-field. Using polarization-selective near-field imaging techniques, we simultaneously monitor the IMT in VO2 and the change of plasmons on gold infrared nanoantennas. Structured nanodomains of the metallic VO2 locally and reversibly transform infrared plasmonic dipole nanoantennas to monopole nanoantennas. Fundamentally, the IMT in VO2 can be triggered on femtosecond timescale to allow ultrafast nanoscale control of optical phenomena. These unique features open up promising novel applications in active nanophotonics.

Comments

Originally Published in:

Sci Rep, 5 13997. doi: http://dx.doi.org/10.1038/srep13997

Recommended Citation

Abate, Y. et al. Control of plasmonic nanoantennas by reversible metalinsulator transition. Sci. Rep. 5, 13997; doi:http://dx.doi.org/10.1038/srep13997 (2015).

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.