Dynamic release of trapped light from an ultrahigh-Q nanocavity via adiabatic frequency tuning.
Adiabatic frequency shifting is demonstrated by tuning an ultrahigh-Q photonic crystal nanocavity dynamically. By resolving the output temporally and spectrally, we showed that the frequency of the light in the cavity follows the cavity resonance shift and remains in a single mode throughout the process. This confirmed unambiguously that the frequency shift results from the adiabatic tuning. We have employed this process to achieve the dynamic release of a trapped light from an ultrahigh-Q cavity and thus generate a short pulse. This approach provides a simple way of tuning Q dynamically.
Tanabe
Takasumi
T
NTT Basic Research Laboratories, NTT Corporation, 3-1, Morinosato Wakamiya Atsugi-shi, Kanagawa 243-0198 Japan. takasumi@nttbrl.jp
Notomi
Masaya
M
Taniyama
Hideaki
H
Kuramochi
Eiichi
E