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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 3 — Jan. 31, 2011
  • pp: 2204–2215

Continuously tunable microdroplet-laser in a microfluidic channel

Sindy K. Y. Tang, Ratmir Derda, Qimin Quan, Marko Lončar, and George M. Whitesides  »View Author Affiliations


Optics Express, Vol. 19, Issue 3, pp. 2204-2215 (2011)
http://dx.doi.org/10.1364/OE.19.002204


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Abstract

This paper describes the generation and optical characterization of a series of dye-doped droplet-based optical microcavities with continuously decreasing radius in a microfluidic channel. A flow-focusing nozzle generated the droplets (~21 μm in radius) using benzyl alcohol as the disperse phase and water as the continuous phase. As these drops moved down the channel, they dissolved, and their size decreased. The emission characteristics from the drops could be matched to the whispering gallery modes from spherical micro-cavities. The wavelength of emission from the drops changed from 700 to 620 nm as the radius of the drops decreased from 21 μm to 7 μm. This range of tunability in wavelengths was larger than that reported in previous work on droplet-based cavities.

© 2011 OSA

OCIS Codes
(140.2050) Lasers and laser optics : Dye lasers
(140.3948) Lasers and laser optics : Microcavity devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 20, 2010
Revised Manuscript: November 28, 2010
Manuscript Accepted: December 6, 2010
Published: January 21, 2011

Virtual Issues
Vol. 6, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Sindy K. Y. Tang, Ratmir Derda, Qimin Quan, Marko Lončar, and George M. Whitesides, "Continuously tunable microdroplet-laser in a microfluidic channel," Opt. Express 19, 2204-2215 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-3-2204


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