Abstract
We demonstrate thermally controlled plasmon resonance modulation of single gold nanoparticles on vanadium dioxide thin films by performing dark-field spectroscopy measurements at different temperatures. The plasmon resonance of the nanoparticles exhibits a significant blueshift in the visible range when the vanadium dioxide film undergoes its insulator-to-metal phase transition around . More importantly, the resonance shift shows a clear hysteresis, mirroring the behavior of the vanadium dioxide film. At a fixed wavelength, the scattering intensity of Au particles also shows a hysteretic behavior decorated with an overshoot before (after) the insulator–metal (metal–insulator) phase transition of the vanadium dioxide film, suggesting that the nanoparticle is probing local variations in the phase transition.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
Liu Hongwei, Lu Junpeng, Zheng Minrui, Tang Sing Hai, Sow Chorng Haur, Zhang Xinhai, and Ke Lin
Opt. Express 22(25) 30748-30755 (2014)
Jin Tae Kim
Opt. Lett. 39(13) 3997-4000 (2014)
Marc Currie, Virginia D. Wheeler, Brian Downey, Neeraj Nepal, Syed B. Qadri, James A. Wollmershauser, Jason Avila, and Luke Nyakiti
Opt. Mater. Express 9(9) 3717-3728 (2019)