Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 21: Poster I

Q 21.90: Poster

Dienstag, 9. März 2010, 16:00–19:00, Lichthof

Slow Light Enhanced Four Wave Mixing Processes — •Sebastian Jakobs, Bernd Schmid, Alexander Petrov, and Manfred Eich — Institute for Optical end Electronic Materials, Hamburg University of Technology

In this presentation slow light enhanced four wave mixing processes in a silicon based photonic crystal wave guide (PCW) are discussed. Slow light in the frequency range of interest is achieved through variation of hole radii and through variation of the position of holes in the second and third row. The focus will be on slow light enhancement of degenerate four wave mixing (DFWM) and third harmonic generation (THG) in the case of a pure silicon PCW as well as in the case of a PCW infiltrated with functionalised nonlinear organic polymers.

DFWM is proposed as an amplification method and the conversion efficiency is increased by means of the group index dependence of the nonlinear gain g. At the same time phase matching is achieved by adjusting the dispersion relation appropriately.

A concept for slow light enhanced THG is presented and analysed, in which the fundamental and the third harmonic waves are guided in the structure and phase matched.