Hannover 2010 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster II

Q 55.79: Poster

Thursday, March 11, 2010, 16:00–19:00, Lichthof

Study of nonlinear effects produced by organic molecules adsorbed on subwavelength diameter optical fibres — •Konstantin Karapetyan, Cristian Dan, Ulrich Wiedemann, Dimitri Pritzkau, Wolfgang Alt, and Dieter Meschede — Institut für Angewandte Physik, Wegelerstr. 8, 53115 Bonn

Optical fibres with a diameter smaller than the wavelength of light offer interesting perspective for strong light-matter interaction without using a cavity. Light propagating in such fibres has a strong evanescent component, which can be coupled to molecules close to or adsorbed on the surface of the fibre. Thus, linear (e.g. absorption, fluorescence) and nonlinear (e.g. two photon absorption/fluorescence, second and third harmonic generation) effects can be used to characterize and control the molecules. In this work we study the effects produced on the propagation of light in subwavelength diameter fibres by organic molecules deposited on the surface.