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Proceedings Paper

Multiphoton excitation of organic chromophores in microbubble resonators
Author(s): Gregory A. Cohoon; Khanh Kieu; Robert A. Norwood
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Paper Abstract

We report the observation of multiphoton excitation of organic chromophores in microbubble whispering gallery mode resonators. High-Q microbubble resonators are a formed by heating a pressurized fused silica capillary to form a hollow bubble which can be filled with liquid. In this case, the microbubble is filled with a solution of Rhodamine 6G dye. The resonator and dye are excited by evanescently coupling CW light from a 980nm laser diode using a tapered optical fiber. The two-photon fluorescence of the dye can be seen with pump powers as low as 1 mW.

Paper Details

Date Published: 4 March 2014
PDF: 6 pages
Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89600L (4 March 2014); doi: 10.1117/12.2038053
Show Author Affiliations
Gregory A. Cohoon, The Univ. of Arizona (United States)
Khanh Kieu, The Univ. of Arizona (United States)
Robert A. Norwood, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 8960:
Laser Resonators, Microresonators, and Beam Control XVI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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