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01-10-2017, 12:14 PM

Hi am Aman Manhas i would like to get details on data storage on fingernail ppt ..My friend Suraj said data storage on fingernail ppt will be available here

jaseela123d · 19-10-2017, 12:13 PM

Recently, there have been rapid developments in the field of information technology, resulting in the need to generate, store and transport a large amount of information, while ensuring data security, an important issue in the era digital of the present time. To meet future demands in information technology, femtosecond laser pulse processing offers a powerful tool to develop new high-capacity devices because it allows the fabrication of three-dimensional (3D) structures within a wide range of transparent materials.

Nail storage is a method of writing data to a human fingernail using a pulsed laser. Fluorescence of the nail, when exposed to ultraviolet (UV) light, increases at the points where the data are written. The data can be read from the nail using a microscope while the nail is irradiated with UV energy.

Recent experiments with the storage of nails, made by Yoshio Hayasaki of the University of Tokushima (Japan), have involved small regions of a single nail, which measures approximately two millimeters (mm) square. A pulsed laser, at a wavelength of 800 nanometers (nm), is used to write the data into the nail. Each data bit measures approximately 0.003 millimeters (mm) in diameter. The individual data bits are separated by 0.005 mm, in three layers at depths of 0.04, 0.06 and 0.08 mm inside the nail.

The storage of the nails has a limited life because the human nails grow. The average human nail is completely replaced by the body every six months, assuming that the nail is shortened at regular intervals. Nail storage has been suggested as a biometric means of identification, and also to store critical medical information for use in emergencies.

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