Nanoparticle-based multi-dimensional optical data storage

The novelty of the research presented in this thesis is to propose and demonstrate a 2P induced multi-dimensional optical data storage in photopolymers sensitised by QDs/QRs for the first time, which has opened the new horizon for high density optical data storage. In particular, the incorporation of QRs can not only enable highly efficient 2P recording but also bring out the polarisation-encoded 4D optical data storage, which can dramatically expand the storage capacity of the current 3D storage system without the efforts to break the diffraction limitation of light. The theoretical density of multi-dimensional optical memory is towards Petebytes/disk. One can anticipate the great impact in this field of high density optical data storage if a compact optical system enabling multi-dimensional data recording and reading can be integrated in the near future.