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Proceedings Paper

Controlled coupling of a single emitter to a single mode of a microsphere: Where do we stand?
Author(s): Stephan Goetzinger; L. de S. Menezes; A. Mazzei; O. Benson; Dmitri V. Talapin; Nicolaj Gaponik; Horst Weller; Andrey L. Rogach; Vahid Sandoghdar
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Paper Abstract

We measured the coupling of the florescence from semiconductor nano-crystals and sub-micron sized dye-doped beads to high-Q whispering gallery modes (WGM) of a microsphere resonator. With Q-factors as high as 109 the florescence could be extracted in a controlled way via a prism coupler. We observed nearly 100 % modulation in the spectrum which reflects the coupling to the WGMs. With the help of a beam scanning confocal microscope we were able to address a single 500 nm sized dye-doped bead on the sphere’s surface and to collect and analyze its florescence in a well defined manner via the prism coupler.

Paper Details

Date Published: 25 June 2003
PDF: 8 pages
Proc. SPIE 4969, Laser Resonators and Beam Control VI, (25 June 2003); doi: 10.1117/12.483651
Show Author Affiliations
Stephan Goetzinger, Humboldt Univ. (Germany)
L. de S. Menezes, Humboldt-Univ. zu Berlin (Germany)
A. Mazzei, Humboldt-Univ. zu Berlin (Germany)
O. Benson, Humboldt-Univ. zu Berlin (Germany)
Dmitri V. Talapin, Univ. Hamburg (Germany)
Nicolaj Gaponik, Univ. Hamburg (Germany)
Horst Weller, Univ. Hamburg (Germany)
Andrey L. Rogach, Ludwig-Maximilians-Univ. Muenchen (Germany)
Vahid Sandoghdar, Swiss Federal Institute of Technology (Switzerland)

Published in SPIE Proceedings Vol. 4969:
Laser Resonators and Beam Control VI
Alexis V. Kudryashov; Alan H. Paxton, Editor(s)

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