Abstract
Inducing and controlling temperature gradients in illuminated subwavelength plasmonic structures is a challenging task. Here, we present a strategy to remotely induce and tune temperature gradients in a subwavelength metallic nanocone by adjusting the angle of incidence of linearly polarized continuous-wave illumination. We demonstrate, through rigorous three-dimensional numerical simulations, that properly tilting the incident illumination angle can increase or decrease the photoinduced temperature gradients within the nanostructure. We analyze the apex-base photoinduced temperature gradient for different illumination directions, resembling typical illumination schemes utilized in surface or tip-enhanced Raman spectroscopy.
© 2020 Optical Society of America
Full Article | PDF ArticleMore Like This
José Manuel Luque-González, Alaine Herrero-Bermello, Alejandro Ortega-Moñux, Marina Sánchez-Rodríguez, Aitor V. Velasco, Jens H. Schmid, Pavel Cheben, Íñigo Molina-Fernández, and Robert Halir
Opt. Lett. 45(13) 3398-3401 (2020)
Weiji Yang, Xuanyi Yu, Jialin Zhang, and Xiaoxu Deng
Opt. Lett. 45(8) 2295-2298 (2020)
Hao Sun and Lawrence R. Chen
Opt. Lett. 46(6) 1450-1453 (2021)