Five-dimensional (5D) recording and decoding is demonstrated by using femtosecond direct laser writing in a silver-containing commercial glass. In particular, laser intensities and ellipse orientations generated by anamorphic focusing are employed to produce 5D data storage unit (3D for XYZ, 1D for the orientation of the elliptically-shaped data storage unit and 1D for its fluorescence intensity). In the recording process, two different images of a 4-bit bitmap format were simultaneously embedded in the medium by multiplexing the elliptical orientation of the laser focus and its intensity so as to access oriented elliptical patterns with independent fluorescence intensity. In the decoding process, two merged original images were successfully reconstructed by comparing each data storage unit with a fabricated calibration matrix of 16 × 16 levels for elliptic orientations and fluorescence intensities. We believe this technique can be applied to semi-permanent high-density data storage device.

中文翻译：

---

基于椭圆取向和荧光强度的五维光学数​​据存储在银敏化商用玻璃中

通过在含银的商用玻璃中使用飞秒直接激光写入来演示五维（5D）记录和解码。特别地，通过变形聚焦产生的激光强度和椭圆取向被用于产生5D数据存储单元（用于XYZ的3D，用于椭圆形数据存储单元的取向的1D和用于其荧光强度的1D）。在记录过程中，通过多路复用激光焦点的椭圆方向及其强度，将两个4位位图格式的不同图像同时嵌入介质中，以访问具有独立荧光强度的椭圆图案。在解码过程中，通过将每个数据存储单元与制作的椭圆取向和荧光强度的16×16级校准矩阵进行比较，成功地重建了两个合并的原始图像。我们相信该技术可以应用于半永久性高密度数据存储设备。