Hot spin-wave resonators and scatterers
Hot spin-wave resonators and scatterers
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DOI：
10.1063/1.4730927
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发表时间：
2012-07
影响因子：
3.2
通讯作者：
O. Kolokoltsev;N. Qureshi;E. Mejía-Uriarte;C. Ordóñez-Romero
中科院分区：
文献类型：
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作者：
O. Kolokoltsev;N. Qureshi;E. Mejía-Uriarte;C. Ordóñez-Romero
描述了一种用于实现钇铁石榴石中自旋波系统的有效光学控制的方法。利用聚焦激光束，通过控制薄膜的局部热退磁来诱导自旋波谐振器和反射器。我们报告形成的光致势阱静磁表面自旋波（MSSWs）导致形成的高Q MSSW谐振器，和高势垒，有效地反映静磁向后体波。
A method used to achieve efficient optical control of a spin wave system in yttrium iron garnet is described. Using a focused laser beam, spin wave resonators and reflectors are induced by controlled local thermal demagnetization of a thin film. We report on the formation of an optically induced potential well for magnetostatic surface spin waves (MSSWs) leading to the formation of a high-Q MSSW resonator, and a high potential barrier that efficiently reflects magnetostatic backward volume waves.