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Proceedings Paper

Engineering the glass waveguide surface for uniform light refraction inside an optofluidic photoreactor (Conference Presentation)

Paper Abstract

We report a surface-engineered glass waveguide based optofluidic reactor system. Photocatalyst is coated on waveguide surfaces and is activated under light irradiation. In traditional design, light gradually spreads and diminishes along the waveguide, leading to non-uniform distribution of light energy. Here we present a method for modifying glass waveguide surfaces through gradient etching, to extend light transmission length and make light refraction more uniform. The effect of waveguide dimensions and etching patterns on the light refraction intensity profiles along transmission was examined. These waveguides with specially designed surfaces were applied in an optofluidic reactor for photocatalytically converting CO2 into fuels.

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11293, MOEMS and Miniaturized Systems XIX, 112930E (10 March 2020); doi: 10.1117/12.2546554
Show Author Affiliations
Xiangkun Cao, Cornell Univ. (United States)
Tao Hong, Cornell Univ. (United States)
Tingwei Liu, Cornell Univ. (United States)
David Erickson, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 11293:
MOEMS and Miniaturized Systems XIX
Wibool Piyawattanametha; Yong-Hwa Park; Hans Zappe, Editor(s)

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