| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7931198 | Optics Communications | 2014 | 4 Pages |
Abstract
A tunable optical unidirectional device or optical isolator composed of a metal subwavelength grating covered with magneto-optical rotation medium is proposed. The results of a simulation show that the difference of transmissivity in opposite directions varies from 0 to 83% with an external magnetic field at room temperature. The largest field needed to control transmissivity is only 1.1Â T, so the working conditions can be easily achieved. A theoretical method to calculate transmissivity is presented and the unique transmission characteristics of this new device are explained satisfactorily.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Ming-Yang Wang, Yun-Song Zhou, Huai-Yu Wang,