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http://hdl.handle.net/10397/5024
Title: | Microfluidic droplet grating for reconfigurable optical diffraction | Authors: | Yu, JQ Yang, Y Liu, AQ Chin, LK Zhang, X |
Issue Date: | 1-Jun-2010 | Source: | Optics letters, 1 June 2010, v. 35, no. 11, p. 1890-1892 | Abstract: | This Letter presents a reconfigurable optical diffraction grating using multiphase droplets on a microfluidic chip. The uniform and evenly spaced circular droplets are generated by continuously dispersing two immiscible liquids into a T junction to produce plugs, which are then transformed into a circular shape at a sudden expansion of the microchannel. In experiments, the droplet grating shows a detection limit of ~6.3×10⁻⁵ when used as an optofluidic refractometer and produces different colors as a color filter. Such a grating has the advantages of high stability and wide tunability in droplet size, grating period, and refractive index, making it promising for biochemical and biomaterial applications. | Keywords: | Microfluidics Refractive index Refractometers |
Publisher: | Optical Society of America | Journal: | Optics letters | ISSN: | 0146-9592 | EISSN: | 1539-4794 | DOI: | 10.1364/OL.35.001890 | Rights: | © 2010 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-11-1890. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Appears in Collections: | Journal/Magazine Article |
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Yu_Microfluidic_droplet_grating.pdf | 373.82 kB | Adobe PDF | View/Open |
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