Studies on Plasmon-assisted magneto-optical effects and device application

我们研究了表面等离子体共振辅助增强磁光效应的复合结构。在改变尺寸和数密度的重复形成方法形成的磁性石榴石与Au纳米颗粒的复合膜中，在激发表面等离子体共振波长处，法拉第旋转角比天然石榴石膜增大了20倍。在含有银-金合金纳米颗粒的复合膜中，在短波长侧获得了增强的法拉第旋转角。为了获得纳米尺度的结构和光学信息，研制了一种扫描近场光学显微镜。

We investigated composite structures for enhancement of magneto-optical effects assisted with surface plasmon resonance. In composite films of magnetic garnet with Au nanaoparticles formed by a repetitive formation method that changes size and number density, Faraday rotation angle was enhanced 20 times larger than that of the native garnet film at wavelength of exciting surface plasmon resonance. In composite films with Ag-Au alloy nanoparticles, enhanced Faraday rotations were obtained at the short wavelength side. A scanning near-field optical microscope was developed to obtain structural and optical information in nano-scale.