Author/Authors :
Dmitry A. Mazurenko، نويسنده , , Andrey V. Akimov، نويسنده , , Alexander B. Pevtsov، نويسنده , , Dmitry A. Kurdyukov، نويسنده , , Valery G. Golubev، نويسنده , , Jaap I. Dijkhuis، نويسنده ,
Abstract :
Ultrafast (30 fs) all-optical switching of the reflectivity in an opal–Si three-dimensional photonic crystal is demonstrated in the visible and the near-infrared spectral range. Photoinduced changes turn out to be enhanced around the photonic stop bands and reach 46% at high excitation power. We show that the switching time is as short as 30 fs and is determined by the pump–pulse duration.
