Magnetochromatics resulted from optical gratings of magnetic fluid films subjected to perpendicular magnetic fields

Herng Er Horng, Chin Yih Hong, S. L. Lee, C. H. Ho, S. Y. Yang, H. C. Yang

研究成果: 雜誌貢獻文章

38 引文 斯高帕斯(Scopus)


A two-dimensional ordered structure can be formed in a thin film of homogeneous magnetic fluids by applying a magnetic field perpendicular to the plane of the film. The characteristic spacing of the ordered structure can be controlled by several parameters, such as the field strength, the sweep rate, the thickness of the film, and the volume concentration of homogeneous magnetic fluids. The length of the characteristic spacing ranges from several micrometers to submicrometers. Depending on the size of the spacing, magnetic fluid films are capable of diffracting an incoming white light. The diffracted light then interferes resulting in a chromatic effect. This effect is well illustrated by the chromatic rings produced by passing a white light through the magnetic fluid films possessing an ordered structure. Because of the changeability of the characteristic spacing, the magnetochromatic effect of magnetic fluid films can be controlled by altering these control parameters.

頁(從 - 到)5904-5908
期刊Journal of Applied Physics
出版狀態已發佈 - 2000 十一月 15


ASJC Scopus subject areas

  • Physics and Astronomy(all)