A direct access storage device that is written and read by light. The most common types are CD, DVD and Blu-ray. As removable media, optical discs superseded the earlier magnetic disk cartridges ...

Scientists develop a metasurface that encrypts data using wavelength, wavevector direction, polarization, and diffraction order, enabling secure optical storage and holographic displays.

He soon became fascinated about how through optical techniques—shining a ... activated by X-rays or gamma rays, here the storage device is activated by a simple ultraviolet laser.

The traditional approach to this problem was to spatially modulate a laser beam with an image of ~one million bits, record a hologram of this image, then use Bragg selectivity to record subsequent ...

Examples include: Modern computer systems, such as mobile phones and MP3 players, all make use of solid state storage devices. These have no moving parts, which means they can: Be smaller ...

However, reports in the Japanese media suggest the industrial giant will “gradually cease production of optical disc storage media,” including Blu-Ray products. Regardless, for now ...

optical storage devices, and laser displays. Quantum well photodetectors exploit the absorption of light in the quantum well region to generate photocurrent. The confinement of charge carriers in ...