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Proceedings Paper

High-speed fabrication of patterned colloidal photonic structures in centrifugal microfluidic chips
Author(s): Seung-Kon Lee; Tae Jung Park; Soyoung Kim; Gi-Ra Yi; Sang Yup Lee; Seung-Man Yang
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Paper Abstract

In this paper, we report a fast and facile method for fabricating colloidal photonic crystals inside microchannels of radially symmetric microfluidic chips. As the suspension of monodisperse silica or polystyrene latex spheres was driven to flow through the channels under the centrifugal force, the colloidal spheres were quickly assembled into face centered cubic arrangement which had photonic stop bands. The optical reflectance spectrum was modulated by the refractiveindex mismatch between the colloidal particles and the solvent filled in the interstices between the particles. Therefore, the present microfluidic chips with built-in colloidal photonic crystals can be used as in-situ optofluidic microsensors for high throughput screening, light filters and biosensors in integrated adaptive optical devices.

Paper Details

Date Published: 13 September 2006
PDF: 8 pages
Proc. SPIE 6329, Optofluidics, 63290G (13 September 2006); doi: 10.1117/12.685463
Show Author Affiliations
Seung-Kon Lee, Korea Advanced Institute of Science and Technology (South Korea)
Tae Jung Park, Korea Advanced Institute of Science and Technology (South Korea)
Soyoung Kim, Korea Advanced Institute of Science and Technology (South Korea)
Gi-Ra Yi, Korea Basic Science Institute (South Korea)
Sang Yup Lee, Korea Advanced Institute of Science and Technology (South Korea)
Seung-Man Yang, Korea Advanced Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 6329:
Optofluidics
Demetri Psaltis; Yeshaiahu Fainman, Editor(s)

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