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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 11 — Jun. 1, 2011
  • pp: 2113–2115

Single-input spherical microbubble resonator

Amy Watkins, Jonathan Ward, Yuqiang Wu, and Síle Nic Chormaic  »View Author Affiliations


Optics Letters, Vol. 36, Issue 11, pp. 2113-2115 (2011)
http://dx.doi.org/10.1364/OL.36.002113


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Abstract

A single-input whispering gallery optical microbubble resonator is presented. Spherical microbubbles with diam eters less than 100 μm , micrometer-sized wall thicknesses, and a single opening or input were fabricated by heating the tapered tip of a pressurized glass capillary using a CO 2 laser. Optical whispering gallery modes with Q factors of 10 5 were obtained. The bubbles were filled with water and mode shifts of 20 GHz were observed. Fano-type resonances were detected when the coupling optical fiber diameter was less than 1 μm , causing the microresonator to switch from being a band-stop filter to a bandpass filter. Larger bubbles with submicrometer wall thickness were also fabricated.

© 2011 Optical Society of America

OCIS Codes
(130.6010) Integrated optics : Sensors
(140.4780) Lasers and laser optics : Optical resonators
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Optical Devices

History
Original Manuscript: March 8, 2011
Revised Manuscript: April 22, 2011
Manuscript Accepted: April 26, 2011
Published: May 31, 2011

Citation
Amy Watkins, Jonathan Ward, Yuqiang Wu, and Síle Nic Chormaic, "Single-input spherical microbubble resonator," Opt. Lett. 36, 2113-2115 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-11-2113

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