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 | Nanotech 2003 Vol. 1
Technical Proceedings of the 2003 Nanotechnology Conference and Trade Show, Volume 1
Chapter 9: Micro Fluidics |
| | A Miniature Laser Interferometer for Noninvasive Viscometry | | Authors: | F. Behroozi | | Affilation: | The University of Northern Iowa, US | | Pages: | 166 - 169 | | Keywords: | interferometer, laser, capillary waves, viscosity | | Abstract: | A miniature laser interferometer consisting entirely of an optical fiber held in close proximity to a fluid surface is described. The total path difference in this interferometer is less than a millimeter. The interferometer may be used to measure, for example, the amplitude of submicron capillary waves with a resolution of about 10 nm. In one application the interfermeter is used to measure, noninvasively, the amplitude decay of capillary waves as a function of the distance from the wave generator. The amplitude decay data yields the viscosity of the fluid with unprecedented precision. As a test case, the viscosity of pure water as a funtion of temperature, measured by this system, is presented. |  | View paper | | ISBN: | 0-9728422-0-9 |
| Pages: | 560 |
| Hardcopy: | $125.00 |
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