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Photothermal formation and targeted positioning of bubbles by a fiber taper
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10.1063/1.4742132
/content/aip/journal/apl/101/5/10.1063/1.4742132
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/5/10.1063/1.4742132

Figures

Image of FIG. 1.
FIG. 1.

(a) Simulated energy density distribution around the fiber tip in water. (b) Distribution of optical energy density along X direction at Y = 10 μm. (c) Distribution of optical energy density along Y direction at X = 14 μm.

Image of FIG. 2.
FIG. 2.

(a) Experimental setup for bubbles formation. The image on computer screen was captured by the CCD, which shows a bubble clung to the fiber tip. (b)Microscopic image of the tapered fiber, and inset indicates that the end of the fiber tip is 2.7 μm in diameter.

Image of FIG. 3.
FIG. 3.

(a) Diameter as a function of growing time (t) of bubbles at different launched optical powers. (b) Experimental and fitted result which show that diameter as a function of growing time (t) of bubble at a launched optical power of 100 mW. The top left inset schematically shows the relative position (cross section view) of the bubble and the fiber tip. The right inset shows the optical images of the bubble at different growing time. Error bars represent standard deviation of measured diameter.

Image of FIG. 4.
FIG. 4.

The growth and decrease process of a bubble. Insets (a)-(e) show optical images of the bubble at t = 35 (point a), 40 (point b), 400 (point c), 800 (point d), and 900 s (point e), respectively. Error bars represent standard deviation of measured diameter.

Image of FIG. 5.
FIG. 5.

Formation of same sized bubbles. (a) Schematic description of the formation of the same sized bubbles. The inset shows a series of bubbles with the same size cling to the bare fiber. (b)Optical image of same sized bubbles formed in the experiment (enhanced online). [URL: http://dx.doi.org/10.1063/1.4742132.1]10.1063/1.4742132.1

Image of FIG. 6.
FIG. 6.

Bubbles with different diameter (D) formed by the method demonstrated in Fig. 5(a). (a) D = 290 μm. (b) D = 250 μm. (c) D = 200 μm. (d) D = 164 μm. (e)D = 96 μm. (f) D = 64 μm.

Image of FIG. 7.
FIG. 7.

Targeted positioning process of bubbles. Red dots A-F indicate the targeted positions for bubble positioning. (a) Bubble 1 is formed at the fiber tip. (b) Bubble 1 is gradually growing up and being moved to targeted location A. (c) Bubble 1 arrives at targeted location A. (d) Bubble 2 is formed, growing up and being moved to targeted location B. (e) Bubble 2 arrives at targeted location B. (f) Bubbles 1-6 were positioned to targeted locations A-F, respectively (enhanced online). [URL: http://dx.doi.org/10.1063/1.4742132.2]10.1063/1.4742132.2

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/content/aip/journal/apl/101/5/10.1063/1.4742132
2012-07-31
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photothermal formation and targeted positioning of bubbles by a fiber taper
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/5/10.1063/1.4742132
10.1063/1.4742132
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