Enhanced two-photon biosensing with double-clad photonic crystal fibers
Journal article published in 2003 by
M. T. Myaing,
J. Y. Ye,
T. B. Norris,
T. Thomas,
J. R. Baker Jr,
W. J. Wadsworth,
G. Bouwmans,
J. C. Knight,
P. St. J. Russell 
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Abstract
A double-clad photonic crystal fiber was used to improve detection efficiency over a standard single-mode fiber in a two-photon fluorescence detection scheme in which the dye was excited and the fluorescence was detected back through the same fiber.