The advantage of the gold nanorods and of quantum dots, another nanomaterial Gu is exploring for rewritable five-dimensional storage, is that they respond to much narrower bands of light.

• 纳米反应时会在塑料上随机分散开，他们也受传播光线角度的影响。当传播光线呈杠杆的牙长轴角度时，杠杆吸收到最大值的光线。这一杠杆区域的数据将无法格式化或者重写，同时亦是最稳定的数据保存区。