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首页> 外文期刊>Japanese journal of applied physics >Effect of Annular Aperture on Solid Immersion Lens-Based Near-Field Recording
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Effect of Annular Aperture on Solid Immersion Lens-Based Near-Field Recording

机译：环形孔径对基于固体浸没透镜的近场记录的影响

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摘要

We analyzed the effect of an annular aperture on solid immersion lens (SIL)-based near-field recording (NFR) to verify the feasibility of applying an aperture to SIL-based NFR. SIL-based NFR with an annular aperture, which blocks the propagating waves, shows good characteristics such as a beam profile on the recording layer and beam propagation inside a medium. By introducing the annular aperture, the focused beam spot size and its sensitivity to the gap between SIL and the surface of the medium can be decreased, and the axial confined beam distribution can be obtained inside the medium. We also show that the general gap control method can be applied to SIL-based NFR with an annular aperture through the calculated exit pupil intensity distribution of the reflected electric field.
机译：我们分析了环形孔对基于固体浸没透镜（SIL）的近场记录（NFR）的影响，以验证对基于SIL的NFR应用孔的可行性。基于SIL的NFR具有环形孔，可阻挡传播的波，具有良好的特性，例如记录层上的光束分布以及介质内部的光束传播。通过引入环形孔，可以减小聚焦束斑的大小及其对SIL与介质表面之间的间隙的敏感度，并且可以在介质内部获得轴向约束束分布。我们还表明，通过计算出的反射电场出射光瞳强度分布，一般的间隙控制方法可以应用于具有环形孔径的基于SIL的NFR。

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