holographic data retrieval

Shining a reference beam on hologram-engraved photosensitive media with identical angle and wavelength used to engrave the source holographic image initiates refraction within the media and recreates the holotechnology picture or encoded information. The hologram shows three dimensionally because of the motion parallax. For data extraction, the patterns of white and blackness from the retrieved image are transformed back into electronic information with a detector array. Data retrieval is extremely rapid, often recreating an entire (million-bit) page at a time. The site on Headwall Photonics may also interest you.

Holographic data storage and analytic structures may be able to provide information processing that is with far greater speed than that of today's two- dimensional systems. Two-dimensional data storage systems such as DVDs and CDs record and retrieve information in a serial manner -- one bit at once. Holographic information systems save and access information in parallel, a whole (megabit) page of data at a time. Various pages can be accessed in an instant by using different beam angles and wave phases. Beam angle and wave phase can be modified much quicker than the mechanical movement required to access different fields in two-dimensional media. Holotech memory is particularly promising for exploring through massive amounts of data to identify patterns or relationships among data. The site on Virtual Football delves into more regarding this and related topics.

Similar holotech topics at Holographic Projectors .