Cavity enhancement of the magneto-optic Kerr effect for optical studies of magnetic nanostructures
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- N. Qureshi
- School of Engineering, University of California , 1156 High Street, Santa Cruz, California 95064
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- H. Schmidt
- School of Engineering, University of California , 1156 High Street, Santa Cruz, California 95064
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- A. R. Hawkins
- ECE Department, Brigham Young University , 459 Clyde Building, Provo, Utah 84602
書誌事項
- 公開日
- 2004-07-19
- DOI
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- 10.1063/1.1774276
- 公開者
- AIP Publishing
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説明
<jats:p>We present a study of cavity enhancement of the magneto-optic Kerr effect using dielectric multilayers in order to facilitate optical studies of individual single-domain nanomagnets. We develop a transfer matrix theory to analyze Kerr rotation from an arbitrary number of possibly lossy dielectric layers. The combination of one lossless and one thin metallic layer is found to be most favorable for studying individual nanomagnets, providing the best tradeoff between signal enhancement and spatial resolution. Accounting for the microscopic surface structure, we find good agreement between theory and experiment. Using this technique, we demonstrate Kerr enhancements by a factor of more than 16.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 85 (3), 431-433, 2004-07-19
AIP Publishing
