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Proceedings Paper

Light-induced Au surface modification
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Paper Abstract

We show that the surface properties of Au thin films on a glass prism, typical of the Krestchsmann setup for SPR generation, can be modified or tuned with optical exposure. The wetting properties of the film were investigated by measuring contact angles of water drops at room temperature T = 23 °C. These contact angle change with optical irradiation from below the film. This change corresponds to a maximum contact angle reduction of Δθc ~ 30° when a surface plasmon resonance (SPR) is excited. The variation in contact angle during drop evaporation is evaluated under different irradiation conditions.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103237O (23 April 2017); doi: 10.1117/12.2265315
Show Author Affiliations
Chunyang Han, The Univ. of Sydney (Australia)
Xi'an Jiaotong Univ. (China)
John Canning, The Univ. of Sydney (Australia)
Kevin Cook, The Univ. of Sydney (Australia)
Md. Arafat Hossain, The Univ. of Sydney (Australia)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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