Liu Liu, He Sailing
Opt Express. 2004 Oct 4;12(20):4835-40. doi: 10.1364/opex.12.004835.
A new near-field optical storage system utilizing a left-handed material (LHM) is introduced by attaching an LHM slab to the lower surface of a conventional solid immersion lens (SIL). The performance of the present storage system is compared with a conventional SIL system through numerical simulation. The LHM slab in the present storage system can image very well the focused spot at the lower surface of the SIL to the surface of a disc. It allows a large air-gap for the mechanical convenience while keeping a large signal contrast and a high storage density. The tolerance of the air-gap is also improved.
通过将左手材料（LHM）平板附着在传统固体浸没透镜（SIL）的下表面，引入了一种新型近场光学存储系统。通过数值模拟，将当前存储系统的性能与传统SIL系统进行了比较。当前存储系统中的LHM平板能够将SIL下表面的聚焦光斑很好地成像到光盘表面。它在保持大信号对比度和高存储密度的同时，为机械便利性留出了较大的气隙。气隙的容差也得到了改善。
