09:30 〜 11:30
▲ [8a-PB2-7] Observation of Optical Bistability in Oppositely Directed Coupler
キーワード：Optical bistability, directional coupler, optical switch
We demonstrate theoretically that directional coupler with one channel positive index and the other with negative index can show a novel optical bistability. This property arises due to effective feedback mechanism as a result of opposite directionality of the phase velocity and energy flow in the negative index materials.