Resonance Quantum Optics of Photonic Crystals

Ashat M. Basharov

Myung‐Ki Kim, In-Kag Hwang, Yong-hee Lee

We demonstrate extremely low-power all-optical bistability by using photonic crystal linear resonators based on InGaAsP quantum-wells. Since the photonic crystal cavity has a high quality-factor and a small mode-volume, the photon density in the cavity is extremely high, which makes it possible to reduce the bistable power. The measured minimum bistable threshold power was 37 muW by using a fiber coupling technique, and the estimated nonlinear refractive index (n2) was -6.84times10-14m2/W at a wavelength of 1610.8 nm which is near the resonant wavelength of quantum-well. The low-power optical bistable operations in a single photonic crystal cavity open the possibility of integrated optical devices such as an all-optical memory and switch, based on photonic crystals

Philip J. Harding

We investigate light propagation in periodic nanoscale structures known as photonic crystals. The goal is to gain insight into how the propagation of light can be modified and exploited for uses in telecommunication, regenerative energy, quantum information processing and optical computing. To this end, we dope photonic crystals with optically resonant systems: systems which strongly modify light propagation.

Kazuaki Sakoda

Jin-Fang Pan, Sunil Sandhu, Yijie Huo +5 more

We show that an all-optical analogue to the Dicke superradiance effect can be observed in on-chip photonic crystal resonator systems where two resonators are separated by a distance much longer than the wavelength of the optical resonators' resonance. In addition, we provide the experimental observation of structural tuning of the superradiance effect in micron-sized optical resonators in a silicon photonic crystal slab.