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Experimental techniques for imaging and measuring transient vapor nanobubbles.


ABSTRACT: Imaging and measuring transient vapor bubbles at nanoscale pose certain experimental challenges due to their reduced dimensions and lifetimes, especially in a single event experiment. Here, we analyze three techniques that employ optical scattering and acoustic detection in identifying and quantifying individual photothermally induced vapor nanobubbles (NBs) at a wide range of excitation energies. In optically transparent media, the best quantitative detection can be achieved by measuring the duration of the optical scattering time-response, while in an opaque media, the amplitude of the acoustic time-response well describes NBs in the absence of stress waves.

SUBMITTER: Lukianova-Hleb EY 

PROVIDER: S-EPMC3543368 | biostudies-other | 2012 Dec

REPOSITORIES: biostudies-other

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