Discs currently have three spatial dimensions.By using gold nanorods Gu and colleagues were able to add two additional dimensions, one based on the colour spectrum, and the other on polarisation.
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- 因为纳米颗粒是通过他们的形状来反射光线,所以在光盘的同一位置,根据一系列的颜色的波长的不同,来存贮不同的信息就成为可能。