Tunable diffraction of magnetic fluid films and its potential application in coarse wavelength-division multiplexing |
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| Authors: | Huang Yen-Wen Hu Ssu-Tse Yang Shieh-Yueh Horng Herng-Er Hung Jung-Chun Hong Chin-Yih Yang Hong-Chang Chao Cha-Hsin Lin Ching-Fuh |
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| Institution: | Institute of Electro-Optical Science and Technology, National Taiwan Normal University, Taipei 116, Taiwan. |
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| Abstract: | 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. |
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