Mechano-optical effects in multiwall carbon nanotubes ethanol based nanofluids

J. A. García-Merino, C. Mercado-Zúñiga, C. R. Torres-Sanmiguel, C. Torres-Torres

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    Abstract

    © 2018 Optical Society of America. A highly sensitive technique for analyzing surface tension and dynamic viscosity of nanofluids was reported. Multiwall carbon nanotubes suspended in ethanol were evaluated. The assistance of a Fabry-Perot interferometer integrated by a small sample volume fluid allowed us to explore the stability and mechanical properties exhibited by the nanostructures. The surface tension and dynamic viscosity of the colloid was examined by using interferometric optical signals reflected from a remnant drop pending at the end of an optical fiber. Nanosecond pulses provided by a Nd:YAG laser source with 9.5 MW/mm2 at 532 nm wavelength were used to induce mechano-optical effects in the liquid drop. The mechanical parameters were approximated, taking into account single optical pulses interacting with an inelastic mass-spring-damper system.
    Original languageAmerican English
    Pages (from-to)2033-2038
    Number of pages1829
    JournalOptics Express
    DOIs
    StatePublished - 22 Jan 2018

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