14:15 〜 14:30
▲ [11p-N307-3] Considering memory functionality for planer wave-guide structures with photo-magnetic materials
キーワード：Magneto-optical memory cell
A waveguide-type Mach-Zehnder interferometer (WG-MZI) incorporating a magnetic layer on each of two WG branches is proposed in view of an all-optical memory cell. The key concept is switching relative magnetization configuration between parallel and anti-parallel with photonic or electronic excitations, which alters the interference condition of the WG-MZI and thus vairies the intensity of output light from the WG-MZI. In the present work, photo-excitated prescession of magnetization (PEPM) is assumed as a trigger for magnetization switching. Magnitude of a change in the effective refractive index in the WG region optically coupled with magnetization as well as the output light intensity, is studied theoretically by model calculation based on magneto-optical (MO) phase delay, through which target and practical values of are examined.