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Microfluidic droplet grating for reconfigurable optical diffraction

机译:微流控微滴光栅可重构光学衍射

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This Letter presents a reconfigurable optical diffraction grating using multiphase droplets on a microfluidic chip.nThe uniform and evenly spaced circular droplets are generated by continuously dispersing two immiscible liquidsninto a T junction to produce plugs, which are then transformed into a circular shape at a sudden expansion of thenmicrochannel. In experiments, the droplet grating shows a detection limit of ~6:3 × 10−5 when used as an optofluidicnrefractometer and produces different colors as a color filter. Such a grating has the advantages of high stability andnwide tunability in droplet size, grating period, and refractive index, making it promising for biochemical and bio-nmaterial applications. © 2010 Optical Society of America
机译:这封信提出了一种在微流控芯片上使用多相液滴的可重构光学衍射光栅.n通过将两种不混溶的液体连续分散在T结中产生塞子,然后将其突然扩展成圆形,从而产生均匀且间隔均匀的圆形液滴然后是微通道在实验中,当用作光度折光仪时,液滴光栅的检测极限为〜6:3×10-5,并产生不同颜色的彩色滤光片。这样的光栅在液滴尺寸,光栅周期和折射率方面具有高稳定性和广泛的可调谐性的优点,使其对于生化和生物材料应用前景广阔。 ©2010美国眼镜学会

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  • 来源
    《Optics Letters》 |2010年第11期|p.1890-1892|共3页
  • 作者单位

    School of Electrical and Electronic Engineering, Nanyang Technological University,Nanyang Avenue, Singapore 639798, Singapore2Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong, China;

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