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Q: Fachverband Quantenoptik und Photonik
Q 51: Poster: Quantum Optics and Photonics IV
Q 51.47: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
Collective molecular emission into a nanofiber — •Masoud Mirzaei1,2, Tobias Utikal1,2, Stephan Götzinger1,2, and Vahid Sandoghdar1,2 — 1Max Planck Institute for the Science of Light, Erlangen, Germany — 2Friedrich Alexander University of Erlangen-Nürnberg, Erlangen, Germany
Tapered optical fibers with a subwavelength diameter exhibit a highly confined mode with a pronounced evanescent field. These properties result in efficient coupling between emitters along the fiber and the guided mode and make it highly desirable for sensitive absorption and fluorescence spectroscopy. In this work, we report mirror-less, low-threshold laser-like action from an organic gain medium surrounding the nanofiber. We discuss variations in temporal and spectral widths as a function of the excitation pulse energy as well as a threshold in the emission signal in the context of self-absorption and re-emission.