It is no coincidence that we interact with the world primarily through visual means—light has many ideal properties for communication of information. These same properties make light ideal for data storage. The wavelength of visible light is small (on the order of 0.5 microns or about 1/7000 the height of a letter written in 10-point font), which indicates it can be used to read or write a larg...

We propose a method of optical data storage that exploits the small dimensions of metallic nano-particles and/or nano-structures to achieve high storage densities. The resonant behavior of these particles (both individually and in small clusters) in the presence of ultraviolet, visible, and near-infrared light may be used to retrieve pre-recorded information by far-field spectroscopic optical d...

Holographic data storage (HDS) has emerged as a promising technology for high-capacity storage. In this study, we propose novel approach to enhance the density in HDS through multiplexing perfect optical vortex (POV) hologram. By utilizing orthogonality property of POV, different POV-recording holograms can be multiplexed store multiple pages within single Compared with conventional vortex, bet...

background: early and non-invasive determination of blood glucose level is of great importance. we aimed to present a new technique to accurately infer the blood glucose concentration in peripheral blood flow using non-invasive optical monitoring system. methods: the data for the research were obtained from 900 individuals. of them, 750 people had diabetes mellitus (dm). the system was designed...

An optical CDMA (code division multiple access) system for the optical data storage using bacteriorhodopsin (BR) is reported as an application of the BR materials. The desired signal of multiple input can be recorded and reconstructed by use of orthogonal codes. An experimental setup is proposed and demonstrated.

Background: Early and non-invasive determination of blood glucose level is of great importance. We aimed to present a new technique to accurately infer the blood glucose concentration in peripheral blood flow using non-invasive optical monitoring system. Methods: The data for the research were obtained from 900 individuals. Of them, 750 people had diabetes mellitus (DM). The system was ...

Various multilayer optical data storage methods have been proposed in which bits are written in an initially homogeneous material. To varying degrees, all of these methods will be constrained by phase aberrations that decrease the Strehl ratio as the number of layers and index perturbation of each bit are increased. Although the exact problem is theoretically and numerically intractable, statis...