Ultraviolet laser-induced submicron spatially resolved superhydrophilicity on single crystal lithium niobate surfaces

Journal Article · Tue May 15 00:00:00 EDT 2007 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2734539· OSTI ID:20982904

Muir, A C; Mailis, S; Eason, R W ^[1]

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1. Optoelectronics Research Centre, University of Southampton, Hants SO17 1BJ (United Kingdom)

Lithium niobate crystal surfaces become superhydrophilic after ultraviolet laser irradiation. The crystal surface hydrophilicity, which was assessed by the contact angle of a sessile drop of de-ionized water, was found to undergo a transition from mildly hydrophobic (contact angle {theta}{sub E}{approx_equal}50 degree sign ) to a superhydrophilic state ({theta}{sub E}<5 degree sign ). Patterning of the hydrophilicity at the micron and submicron ranges has been achieved by spatially modulating the illuminating laser beam.

• OSTI ID: 20982904
• Journal Information: Journal of Applied Physics, Vol. 101, Issue 10; Other Information: DOI: 10.1063/1.2734539; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LASER RADIATION
LITHIUM COMPOUNDS
MONOCRYSTALS
NIOBATES
ULTRAVIOLET RADIATION
WATER