Interplay of plasma-induced and fast thermal nonlinearities in a GaAs-based photonic crystal nanocavity

Abstract

We investigate the nonlinear response of GaAs-based photonic crystal cavities at time scales which are much faster than the typical thermal relaxation rate in photonic devices. We demonstrate a strong interplay between thermal and carrier induced nonlinear effects. We have introduced a dynamical model entailing two thermal relaxation constants which is in very good agreement with experiments. These results will be very important for Photonic Crystal-based nonlinear devices intended to deal with practical high repetition rate optical signals.

10 pages, 8 figures, Phys Rev A (accepted)

References in corpus (5)

• Stopping Light All-Optically
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• GaAs photonic crystal cavity with ultra-high Q: microwatt nonlinearity at 1.55 $\mu$m
• Observation of femto-joule optical bistability involving Fano resonances in high-Q/Vm silicon photonic crystal nanocavities
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• Thermo-optical dynamics of a nonlinear GaInP photonic crystal nanocavity depend on the optical mode profile