Guo F, Schlesinger T E, Stancil D D
Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
Appl Opt. 2000 Jan 10;39(2):324-32. doi: 10.1364/ao.39.000324.
The use of a solid immersion lens (SIL) is an important technique for increasing areal density in optical recording. Here an approximate method is presented for analyzing the optical fields in a SIL above a half-space and a SIL above a multilayer recording medium. Both propagating and evanescent components are included in the distribution of fields below the SIL. An approximate closed-form expression is given for the decay of the intensity away from the SIL surface above a half-space. In the case of a SIL above a recording medium the model describes the strong oscillations that are observed in the reflected Kerr rotation and ellipticity as the medium spacing is varied. These oscillations are attributed to standing waves in the propagating field component.
使用固体浸没透镜（SIL）是提高光学记录面密度的一项重要技术。本文提出一种近似方法，用于分析半空间上方的SIL以及多层记录介质上方的SIL中的光场。SIL下方场分布中同时包含传播分量和倏逝分量。给出了半空间上方远离SIL表面处强度衰减的近似封闭形式表达式。对于记录介质上方的SIL，该模型描述了随着介质间距变化，在反射克尔旋转和椭圆率中观察到的强烈振荡。这些振荡归因于传播场分量中的驻波。
