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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Cover-Layer with High Refractive Index for Near-Field Recording Media
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Cover-Layer with High Refractive Index for Near-Field Recording Media

机译：用于近场记录介质的高折射率覆盖层

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摘要

TiO_2 nanoparticles are added into UV-curable resin to increase the refractive index of the cover-layer laminated for cover-layer incident near-field recording media. A high refractive index is required for the cover-layer operating with an optical head with a high numerical aperture. The eye pattern from a cover-layer coated 20 GB read-only memory disc in which the refractive index of the cover-layer is 1.75 is achieved, but the gap servo is unstable owing to the rough surface of the cover-layer. Even though the light loss due to the nanoparticles is negligible, a rough microstructure is developed by adding the nanoparticles into an organic binder material. To achieve a smooth surface for a stable gap servo, the solubility of the nanoparticles should be enhanced by the optimization of the surface of the nanoparticles.
机译：将TiO_2纳米颗粒添加到UV固化树脂中，以增加层压的覆盖层的折射率，该覆盖层用于覆盖层入射近场记录介质。对于具有高数值孔径的光学头进行操作的覆盖层需要高折射率。从覆盖层涂覆的20GB只读存储盘获得眼图，其中覆盖层的折射率为1.75，但是由于覆盖层的粗糙表面，间隙伺服不稳定。即使由于纳米颗粒引起的光损失可以忽略不计，也可以通过将纳米颗粒添加到有机粘合剂材料中来形成粗糙的微观结构。为了获得用于稳定间隙伺服的光滑表面，应当通过优化纳米颗粒的表面来提高纳米颗粒的溶解度。

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