科研之友
微信
新浪微博
Facebook
分享链接
摘要
We demonstrate the switching of light in the near-infrared region (1.55 mu m) through the manipulation of magnetic nanoparticles in a magnetic fluid by using another light in the visible region (0.532 mu m). The formation of a photonic gap is found in the magnetic fluid when a laser light or a magnetic field is applied. A shift of the photonic gap to longer wavelengths is observed with increasing laser power or magnetic field strength.
