Tunable optical switch using magnetic fluids

H. E. Horng*, C. S. Chen, K. L. Fang, S. Y. Yang, J. J. Chieh, Chin Yih Hong, H. C. Yang


研究成果: 雜誌貢獻期刊論文同行評審

136 引文 斯高帕斯(Scopus)


With a tunable refractive index, magnetic fluid can be applied to the development of adjustable optical devices. In this work, a magnetic-fluid-based optical switch is designed and characterized. The optical switch is formed by sealing magnetic fluid between two glass prisms. When a light is incident to one side of one of the prisms, a reflected light from the magnetic fluid film comes out from the same prism, whereas a transmitted light through the film emits from the other prism. It was found that the intensity ratio of the reflected light to the transmitted light can be manipulated by varying the external magnetic field strength. This implies that the light intensity can be switched between two paths. The switching efficiency also depends on the incident angle of a light into the prism. We then theoretically derive the incident-angle dependent switching efficiency to clarify relevant physical mechanisms.

頁(從 - 到)5592-5594
期刊Applied Physics Letters
出版狀態已發佈 - 2004 12月 6

ASJC Scopus subject areas

  • 物理與天文學(雜項)


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