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Opt Lett. 2010 Apr 1;35(7):898-900. doi: 10.1364/OL.35.000898.

Optical microbubble resonator.

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  • 1OFS Laboratories, 19 Schoolhouse Road, Somerset, New Jersey 08873, USA.


We develop a method for fabricating very small silica microbubbles having a micrometer-order wall thickness and demonstrate the first optical microbubble resonator. Our method is based on blowing a microbubble using stable radiative CO(2) laser heating rather than unstable convective heating in a flame or furnace. Microbubbles are created along a microcapillary and are naturally opened to the input and output microfluidic or gas channels. The demonstrated microbubble resonator has 370 microm diameter, 2 microm wall thickness, and a Q factor exceeding 10(6).

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