Tunable diffraction of magnetic fluid films and its potential application in coarse wavelength-division multiplexing.
When an external magnetic field is applied parallel to the film surface of a magnetic fluid film, a high-quality one-dimensional periodic chain structure is formed when the field strength reaches a certain level. With a periodic chain structure in the magnetic fluid film, an incident light is diffracted onto the magnetic thin film. The results show that the one-dimensional periodic chain structure in the magnetic fluid film can serve as an optical grating. Further investigations reveal the feasibility of developing tunable coarse wavelength-division multiplexing by utilizing a periodic chain structure.
Huang
Yen-Wen
YW
Institute of Electro-Optical Science and Technology, National Taiwan Normal University, Taipei 116, Taiwan.
Hu
Ssu-Tse
ST
Yang
Shieh-Yueh
SY
Horng
Herng-Er
HE
Hung
Jung-Chun
JC
Hong
Chin-Yih
CY
Yang
Hong-Chang
HC
Chao
Cha-Hsin
CH
Lin
Ching-Fuh
CF