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Conferences > ACPC > 2017 > S4D > S4D.2

Transmission and reflection from a free carrier front in a silicon slow light waveguide

Mahmoud A. Gaafar, Dirk Jalas, Liam O’Faolain, Juntao Li, Thomas F. Krauss, Alexander Yu. Petrov, and Manfred Eich

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Abstract

Optical transition with changes of frequency and wave vector can be induced by optically generated free carrier fronts that move along a slow light photonic crystal waveguide and interact with a co-propagating signal wave. With the flexibility in dispersion designs of these waveguides, a variety of indirect photonic transitions can be envisaged. The signal wave transmitted through the front experience an inter-band transition, while the wave reflected from the front – an intra-band transition. Theory and experimental results are presented.

© 2017 Optical Society of America

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