We report the observation of enhanced fluorescence from molecules deposited on the surface of an optical waveguide structure. We attribute the enhancement to the near-field interaction between the Rhodamine B molecules and the waveguide’s modal fields. The process does not require the use of prism or grating couplers and can give rise to an enhancement factor in excess of 2 orders of magnitude.
© 1985 Optical Society of America
Original Manuscript: March 8, 1985
Manuscript Accepted: May 14, 1985
Published: August 1, 1985
W. R. Holland and D. G. Hall, "Waveguide mode enhancement of molecular fluorescence," Opt. Lett. 10, 414-416 (1985)