Dynamic increase and decrease of photonic crystal nanocavity Q factors for optical pulse control.
We introduce recent advances in dynamic control over the Q factor of a photonic crystal nanocavity system. By carefully timing a rapid increase of the Q factor from 3800 to 22,000, we succeed in capturing a 4ps signal pulse within the nanocavity with a photon lifetime of 18ps. By performing an additional transition of the Q factor within the photon lifetime, the held light is once again ejected from of the system on demand.
Upham
Jeremy
J
Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. jeremy@qoe.kuee.kyoto-u.ac.jp
Tanaka
Yoshinori
Y
Asano
Takashi
T
Noda
Susumu
S