||On-demand transfer of trapped photons on a chip
Konoike, Ryotaro ,
Nakagawa, Haruyuki ,
Nakadai, Masahiro ,
Asano, Takashi ,
Tanaka, YoshinoriNoda, Susumu
2016-05-20 , American Association for the Advancement of Science
チップ上の微小点に保存した光の瞬時転送. 京都大学プレスリリース. 2016-05-26.
Photonic crystal nanocavities, which have modal volumes of the order of a cubic wavelength in the material, are of great interest as flexible platforms for manipulating photons. Recent developments in ultra-high quality factor nanocavities with long photon lifetimes have encouraged us to develop an ultra-compact and flexible photon manipulation technology where photons are trapped in networks of such nanocavities. The most fundamental requirement is the on-demand transfer of photons to and from the trapped states of arbitrary nanocavities. We experimentally demonstrate photon transfer between two nearly resonant nanocavities at arbitrary positions on a chip, triggered by the irradiation of a third nonresonant nanocavity using an optical control pulse. We obtain a high transfer efficiency of ～90% with a photon lifetime of ～200 ps.