Explosive, oscillatory, and Leidenfrost boiling at the nanoscale

Jollans, Thomas; Orrit, Michel

doi:10.1103/physreve.99.063110

Cited by 20 publications

(18 citation statements)

References 31 publications

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“…One can expect many other studies in this eld as the behaviour of SBs (temperature onset, uid convection, dynamics, life time and so on) strongly depends on the surrounding uid. Experiments in alcohols and alkanes have already been reported very recently 125,126 .…”

Section: Soft Matter and Fluidsmentioning

confidence: 99%

Applications and challenges of thermoplasmonics

2020

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Over the past two decades, there has been a growing interest in the use of plasmonic nanoparticles as sources of heat remotely controlled by light, giving rise to the field of thermoplasmonics. The ability to release heat on the nanoscale has already impacted a broad range of research activities, from biomedicine to imaging and catalysis. Thermoplasmonics is now entering an important phase: some applications have engaged in an industrial stage, while others, originally full of promise, experience some difficulty in reaching their potential. Meanwhile, innovative fundamental areas of research are being developed. In this Review, we scrutinize the current research landscape in thermoplasmonics, with a specific focus on its applications and main challenges in many different fields of science, including nanomedicine, cell biology, photothermal and hot-electron chemistry, solar light harvesting, soft matter and nanofluidics.

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Section: Soft Matter and Fluidsmentioning

confidence: 99%

Applications and challenges of thermoplasmonics

2020

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“…3a, Supplementary Movie 3). The bubble grows in about 0.5 ms and collapses as rapidly, which could be a signature of either cavitation 17,18 or explosive boiling 19,20 ; in that case, our bubble would be analogous to a plasmonic bubble 21 . One could expect these violent bubble dynamics to be the cause of the observed photomechanical effect.…”

Section: Resultsmentioning

confidence: 93%

Ultrafast photomechanical transduction through thermophoretic implosion

et al. 2020

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Since the historical experiments of Crookes, the direct manipulation of matter by light has been both a challenge and a source of scientific debate. Here we show that laser illumination allows to displace a vial of nanoparticle solution over centimetre-scale distances. Cantilever-based force measurements show that the movement is due to millisecond-long force spikes, which are synchronised with a sound emission. We observe that the nanoparticles undergo negative thermophoresis, and ultrafast imaging reveals that the force spikes are followed by the explosive growth of a bubble in the solution. We propose a mechanism accounting for the propulsion based on a thermophoretic instability of the nanoparticle cloud, analogous to the Jeans’s instability that occurs in gravitational systems. Our experiments demonstrate a new type of laser propulsion and a remarkably violent actuation of soft matter, reminiscent of the strategy used by certain plants to propel their spores.

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“…Both phenomena are of an explosive nature as a result of the instability nature of the phase transition, in sharp contrast with the usual nucleation scenario [12,13]. Yet, these situations open new questions in liquid state physics at small scales [6,[14][15][16][17], where phase changes are governed by nanoscale effects including Kapitza resistance and ballistic vapor transport [18]. In particular, the nanobubble threshold has been shown to be sensitive to, among others, the nanoparticle size [7,19,20], shape [21], surface coverage [22], laser pulse width [23], and presence of dissolved gas [15].…”

Section: Introductionmentioning

confidence: 99%