Liquid/Liquid Optical Waveguides Using Sheath Flow as a New Tool for Liquid/Liquid Interfacial Measurements
Applied Spectroscopy, Vol. 57, Issue 8, pp. 1039-1041 (2003)
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Abstract
A liquid/liquid optical waveguide was constructed using a sheath flow. Since the refractive index of an organic solvent is generally higher than that of water (nD = 1.33), light introduced into the inner organic flow should proceed with total multi-reflection within the inner flow, so that the inner part of the sheath flow acts as the core of an optical waveguide. This sheath flow liquid/liquid optical waveguide was stable and showed no substantial background scattering. Moreover, it is applicable to both miscible and immiscible liquid/liquid interfaces. Thus, it may become a new tool for studying liquid/liquid interfaces as well as for sensitive optical measurements.
Citation
Hiromi Takiguchi, Tamao Odake, Manabu Ozaki, Tomonari Umemura, and Kin-Ichi Tsunoda, "Liquid/Liquid Optical Waveguides Using Sheath Flow as a New Tool for Liquid/Liquid Interfacial Measurements," Appl. Spectrosc. 57, 1039-1041 (2003)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-57-8-1039
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