Magnetically-modulated refractive index of magnetic fluid films

S. Y. Yang, Y. F. Chen, H. E. Horng*, Chin Yih Hong, W. S. Tse, H. C. Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

127 Citations (Scopus)


A setup to probe the refractive index of the magnetic fluid films under external magnetic fields is developed. The results show that the refractive index of the magnetic fluid depends linearly on the concentration of the dilute magnetic fluid under zero field. It is shown that for a given magnetic fluid film, the refractive index increases with the increasing field strength over a critical value, and then becomes saturated as the field reaches around 200 Oe.

Original languageEnglish
Pages (from-to)4931-4933
Number of pages3
JournalApplied Physics Letters
Issue number26
Publication statusPublished - 2002 Dec 23

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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