GaAs photonic crystal cavity with ultra-high Q: microwatt nonlinearity at 1.55 $\mu$m

Sylvain Combrie', Alfredo De Rossi, Quynh Vy Tran +1

We have realized and measured a GaAs nanocavity in a slab photonic crystal based on the design by Kuramochi et al. [Appl. Phys.Lett., \textbf{88}, 041112, (2006)]. We measure a qua…