Optical memory disks in optical information processing.

Phase Change Memory: Rewritable Optical Disks and Electronic non-volatile memories

Phase change memory of atomic order (Crystalline)-disorder(Amorphous) phase change phenomena was found by S. R. Ovshinsky(Energy Conversion Devices, Inc.) called “Ovonic Memory. GeSbTe and AgInSbTe material systems are used in commercial optical disks, and GeSbTe is commonly used in semiconductor memories. Million overwrite phase change technology enabled rewritable DVD (Digital versatile disk)...

All-optical phase-change memory in a single gallium nanoparticle.

We report on the first demonstration of a quaternary-logical resonatorless optical memory element with information encoded in the structural phase of a single 80 nm gallium nanoparticle. The size of the memory element is comparable with bits in next-generation hard disks, and radically smaller than previously suggested memories exploiting optical resonators. Furthermore, the energy required for...

Image correlators using optical memory disks.

Image correlators are described and experimentally demonstrated that are implemented using optical memory disks to store a large library of reference images.

Determination of experimental Tumor Volume of a mouse using optical imaging system in different processing stages

Designing voltage tunable single and multi-channel optical filter with 1DDPC nano-structure

An electro-optic tunable single and multi-channel optical filter based on one-dimensional defective photonic crystal (1DDPC) structure is proposed. A couple of externally tunable defects in arrangement of (AB)5D1(BA)D2(BA)5, where A and B are dielectric materials, D1 and D2 are the tunable defects are used. The defects are composed of the ferroelectric LiNbO3 crystals and two pairs of thin Ag l...