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Tunable optical switch using magnetic fluids

delete2004-12-06
delete138
delete
OA
AI
H
H. E. Horng
C
C.-S. Chen
F
Fang, KL
S
Siyu Yang
J
Jen-Jie Chieh
H
H. C. Yang
DOI：10.1063/1.1833564delete
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Abstract

Abstract

En 中文
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. (C) 2004 American Institute of Physics.
Keywords:
REFRACTIVE-INDEX
TRANSMISSION
ORIGIN

Journal

Applied Physics Letters cover
Applied Physics Letters
IF:
3.6
Papers:
10.4W
Citations:
17.8W

Organization

No organization information available