The compound diffraction beam will be propagated toward different directions when the invisible laser beam is vertically projected on the rotary holographic disk.

使用不可见激光束垂直投射到旋转全息圆盘上，产生复数衍射光束向不同方向传播。

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And holographic storage but utilize the entire disk space, and all is not limited to the surface.

而全息存储却利用了整个磁盘的所有空间，而不仅仅局限在表面。

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That's the trick performed by holographic disk drives, which record a series of 1-million-bit chunks of data as holographic "pages" inside a light-sensitive plastic medium.

FORBES: Deep Storage