Micro-Fresnel Zone Plate Optical Devices Using Densely Accumulated Ray Points

NASA Langley Research Center has developed a novel approach for a high-density optical data storage system to advance the typical capabilities of an optical data storage system. Operating at any laser wavelength from infrared (IR), visible, ultraviolet (UV), and X-ray regimes, the NASA technology utilizes special beam focusing techniques to achieve extremely short focal lengths and ultra-small spot sizes. The technology could be used with any laser wavelength and soft X-ray regime, and can be adapted to take advantage of any optical media. The high-density data storage capability is solely a function of the reduced laser/X-ray spot size.