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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 11 — Jun. 1, 2014
  • pp: 3098–3101

Observation of two-photon fluorescence for Rhodamine 6G in microbubble resonators

Gregory A. Cohoon, Khanh Kieu, and Robert A. Norwood  »View Author Affiliations


Optics Letters, Vol. 39, Issue 11, pp. 3098-3101 (2014)
http://dx.doi.org/10.1364/OL.39.003098


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Abstract

We report an observation of multi-photon excitation of organic chromophores in microbubble whispering gallery mode resonators. High- Q microbubble resonators were formed by heating a pressurized fused silica capillary to form a hollow bubble that was then filled with liquid. In this work, the microbubble was filled with a solution of Rhodamine 6G dye. The resonator and dye were excited by evanescently coupling continuous wave (CW) light from a 980 nm laser diode using a tapered optical fiber. The two-photon fluorescence of the dye can be seen with pump powers as low as 700 μW.

© 2014 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(190.4180) Nonlinear optics : Multiphoton processes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Nonlinear Optics

History
Original Manuscript: March 17, 2014
Revised Manuscript: April 19, 2014
Manuscript Accepted: April 20, 2014
Published: May 19, 2014

Virtual Issues
Vol. 9, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Gregory A. Cohoon, Khanh Kieu, and Robert A. Norwood, "Observation of two-photon fluorescence for Rhodamine 6G in microbubble resonators," Opt. Lett. 39, 3098-3101 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-11-3098

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