Monitoring the evaporation dynamics of a water droplet inside a microcapillary with nanometre-scale precision

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There is a growing interest to the multi-disciplinary field of droplet microfluidics having applications in physics, chemistry, biology, surface science, colloidal liquid dynamics etc. [1, 2]. Usually, optical sensing methods characterize the droplets with the spatial resolution determined by the wavelength of light, i.e., comparable with 1 micron. Alternatively, the approach suggested in Ref. [3] allows to determine the refractive index variation of submicron-thick liquid layers adjacent to the surface of microcapillaries. Microfluidic sensing in Ref. [3] was performed by measurement of the resonant whispering gallery mode (WGM) spectrum. Specifically, WGMs were launched into the microcapillary using the normally attached micron-diameter waist of a biconical fibre taper connected to the light source and optical spectrum analyser (OSA) as illustrated in Fig. 1(a). Evanescent coupling of WGMs to the interior of the microcapillary allowed to detect the refractive index variation of liquid by monitoring the shifts of the WGM resonances.

Original languageEnglish
Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PublisherIEEE
ISBN (Electronic)9781728104690
DOIs
Publication statusPublished - 17 Oct 2019
Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
Duration: 23 Jun 201927 Jun 2019

Conference

Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
CountryGermany
CityMunich
Period23/06/1927/06/19

Fingerprint

Whispering gallery modes
Evaporation
whispering gallery modes
evaporation
Microfluidics
Water
Monitoring
Refractive index
Liquids
liquids
refractivity
water
tapering
biology
Light sources
optical spectrum
light sources
Physics
spatial resolution
chemistry

Cite this

Tokmakov, K. V., & Sumetsky, M. (2019). Monitoring the evaporation dynamics of a water droplet inside a microcapillary with nanometre-scale precision. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 [8873292] IEEE. https://doi.org/10.1109/CLEOE-EQEC.2019.8873292
Tokmakov, K. V. ; Sumetsky, M. / Monitoring the evaporation dynamics of a water droplet inside a microcapillary with nanometre-scale precision. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE, 2019.
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Tokmakov, KV & Sumetsky, M 2019, Monitoring the evaporation dynamics of a water droplet inside a microcapillary with nanometre-scale precision. in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019., 8873292, IEEE, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Munich, Germany, 23/06/19. https://doi.org/10.1109/CLEOE-EQEC.2019.8873292

Monitoring the evaporation dynamics of a water droplet inside a microcapillary with nanometre-scale precision. / Tokmakov, K. V.; Sumetsky, M.

2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE, 2019. 8873292.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Tokmakov KV, Sumetsky M. Monitoring the evaporation dynamics of a water droplet inside a microcapillary with nanometre-scale precision. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. IEEE. 2019. 8873292 https://doi.org/10.1109/CLEOE-EQEC.2019.8873292