We present the microbubble generation using tapered optical fibers. We studied the relation of microbubble generation with experimental parameters. We report the relation of these, with size, speed of growing and lifetime of the microbubbles.
This research shows an experimental study and analysis on microbubbles formation, through the use of chemically modified optical fiber tips. Microbubbles are formed in highly absorbent liquid using a continuous wave laser at 980 nm, with conventional powers. This report is considered, as the first study and dynamic analysis for microbubble formation in solution with these particular types of tips. Fiber tips are modified by the chemical wear method, using hydrofluoric acid, while, microbubbles are generated with the help of the deposition or adhesion of nanostructures on the modified tips. We have used carbon nanotubes dissolved in ethanol as nanostructures. We present an analysis of the results considering: the growth curves of the microbubbles, the largest radii, the lifetime and the growth rate. Finally, we discuss the important features of results, suggesting a possible way to control the size and number of microbubbles. Furthermore, the results of our research could be useful to improve the proposals of earlier applications or to propose new ones. The results shown can be useful for new applications or to improve proposals.
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