Explosive, oscillatory, and Leidenfrost boiling at the nanoscale
Abstract
We investigate the different boiling r\'egimes around a single continuously laser-heated 80 nm gold nanoparticle and draw parallels to the classical picture of boiling. Initially, nanoscale boiling takes the form of transient, inertia-driven, unsustainable boiling events characteristic of a nanoscale boiling crisis. At higher heating power, nanoscale boiling is continuous, with a vapor film being sustained during heating for at least up to 20 s. Only at high heating powers does a substantial stable vapour nanobubble form. At intermediate heating powers, unstable boiling sometimes takes the form of remarkably stable nanobubble oscillations with frequencies between 40 MHz and 60 MHz; frequencies that are consistent with the relevant size scales according to the Rayleigh-Plesset model of bubble oscillation, though how applicable that model is to plasmonic vapor nanobubbles is not clear.
Cite
@article{arxiv.1902.09331,
title = {Explosive, oscillatory, and Leidenfrost boiling at the nanoscale},
author = {Thomas Jollans and Michel Orrit},
journal= {arXiv preprint arXiv:1902.09331},
year = {2019}
}