Observation of faraday rotation and magnetic circular dichroism in an optical near-field probe coated with Fe

被引：0
|
作者：
Kawazoe, T [1 ]
Maruyama, S
Kobayashi, K
Ohtsu, M
机构：
[1] Japan Sci & Technol Agcy, Machida, Tokyo 1940004, Japan
[2] Tokyo Inst Technol, Tokyo 1528550, Japan
[3] Univ Tokyo, Tokyo 1138656, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2005年 / E88C卷 / 09期
关键词：
polarization; optical near-field; magneto-optical effect; optical properties of magnetic materials; plasmon;
D O I：
10.1093/ietele/e88-c.9.1850
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrate a novel fiber device exhibiting magnetic circular dichroism (MCD) and Faraday rotation in sharpened optical fibers coated with Fe. The degree of MCD was 0.68 in a magnetic field of 0.35 T and the Faraday rotation angle was as great as 110 degrees. Such great magneto-optical effect is due to optical near-field interactions in the sub-wavelength region, i.e., in the tip of the near-field fiber probe. These effects can be attributed to the large magnitude of the magneto optical coefficient of Fe.
引用
收藏
页码：1850 / 1852
页数：3
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