Sung-Yong Park, Ting-Hsiang Wu, Yue Chen, P. Chiou
{"title":"A laser driven optofluidic device for high-speed and precise volume-controlled droplet generation on demand","authors":"Sung-Yong Park, Ting-Hsiang Wu, Yue Chen, P. Chiou","doi":"10.1109/OMEMS.2010.5672193","DOIUrl":null,"url":null,"abstract":"We report on an ultra-fast, pulse laser-driven droplet generation (PLDG) mechanism that enables on-demand droplet generation up to 10,000 droplets/sec, and continuous tuning of injected droplet volume ranging from 1pL to 150pL with precise volume control (0.26% volume variation) in a microfluidic device. On-demand droplet generation in PLDG is realized by focusing intense laser pulses into water to induce rapid bubble expansion and perturbing an oil-water interface for droplet formation. Device reliability testing of continuous excitation for 3.6 million laser pulsing cycles is also achieved without any damages.","PeriodicalId":421895,"journal":{"name":"2010 International Conference on Optical MEMS and Nanophotonics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 International Conference on Optical MEMS and Nanophotonics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEMS.2010.5672193","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We report on an ultra-fast, pulse laser-driven droplet generation (PLDG) mechanism that enables on-demand droplet generation up to 10,000 droplets/sec, and continuous tuning of injected droplet volume ranging from 1pL to 150pL with precise volume control (0.26% volume variation) in a microfluidic device. On-demand droplet generation in PLDG is realized by focusing intense laser pulses into water to induce rapid bubble expansion and perturbing an oil-water interface for droplet formation. Device reliability testing of continuous excitation for 3.6 million laser pulsing cycles is also achieved without any damages.
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