Cavity optofluidics: a μdroplet’s whispering-gallery mode makes a μvortex

Daniel Bar-David; Shai Maayani; Leopoldo L. Martin; Tal Carmon

doi:10.1364/OE.26.019115

Cavity optofluidics: a μdroplet’s whispering-gallery mode makes a μvortex

Daniel Bar-David^*, Shai Maayani, Leopoldo L. Martin, Tal Carmon

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We experimentally demonstrate light-flow interaction, in which the angular momentum of circulating light excites micro-vortices. In contrast with the solid-phase of matter, where one has to overcome static friction in order to start motion, liquids have no “static drag.” Relevant to almost all optofluidic micro-systems hence, μWatt optical power is sufficient to start flows, even in liquids 50 times more viscous than water. We map the flows to be three-dimensional (3D) by using a technique based on fluorescent nano-emitters; to reveal, as expected, flow speeds proportional to power divided by viscosity.

Original language	English
Pages (from-to)	19115-19122
Number of pages	8
Journal	Optics Express
Volume	26
Issue number	15
DOIs	https://doi.org/10.1364/OE.26.019115
State	Published - 23 Jul 2018
Externally published	Yes

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10.1364/OE.26.019115

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title = "Cavity optofluidics: a μdroplet{\textquoteright}s whispering-gallery mode makes a μvortex",

abstract = "We experimentally demonstrate light-flow interaction, in which the angular momentum of circulating light excites micro-vortices. In contrast with the solid-phase of matter, where one has to overcome static friction in order to start motion, liquids have no “static drag.” Relevant to almost all optofluidic micro-systems hence, μWatt optical power is sufficient to start flows, even in liquids 50 times more viscous than water. We map the flows to be three-dimensional (3D) by using a technique based on fluorescent nano-emitters; to reveal, as expected, flow speeds proportional to power divided by viscosity.",

author = "Daniel Bar-David and Shai Maayani and Martin, {Leopoldo L.} and Tal Carmon",

note = "Publisher Copyright: {\textcopyright} 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.",

year = "2018",

month = jul,

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doi = "10.1364/OE.26.019115",

language = "אנגלית",

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T1 - Cavity optofluidics

T2 - a μdroplet’s whispering-gallery mode makes a μvortex

AU - Bar-David, Daniel

AU - Maayani, Shai

AU - Martin, Leopoldo L.

AU - Carmon, Tal

PY - 2018/7/23

Y1 - 2018/7/23

N2 - We experimentally demonstrate light-flow interaction, in which the angular momentum of circulating light excites micro-vortices. In contrast with the solid-phase of matter, where one has to overcome static friction in order to start motion, liquids have no “static drag.” Relevant to almost all optofluidic micro-systems hence, μWatt optical power is sufficient to start flows, even in liquids 50 times more viscous than water. We map the flows to be three-dimensional (3D) by using a technique based on fluorescent nano-emitters; to reveal, as expected, flow speeds proportional to power divided by viscosity.

AB - We experimentally demonstrate light-flow interaction, in which the angular momentum of circulating light excites micro-vortices. In contrast with the solid-phase of matter, where one has to overcome static friction in order to start motion, liquids have no “static drag.” Relevant to almost all optofluidic micro-systems hence, μWatt optical power is sufficient to start flows, even in liquids 50 times more viscous than water. We map the flows to be three-dimensional (3D) by using a technique based on fluorescent nano-emitters; to reveal, as expected, flow speeds proportional to power divided by viscosity.

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M3 - מאמר

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SP - 19115

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JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 15

ER -

Cavity optofluidics: a μdroplet’s whispering-gallery mode makes a μvortex

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