Holographic DVDs

Holographic DVDs can hold orders of magnitude more data than standard DVDs -- offering the potential of storing a hundred standard resolution movies on a single disk or fewer higher resolution movies for HDTV. Right now, CDs and DVDs remain the primary formats for mobile information storage media for movies, music, and data. These conventional information storage media store information as discrete dots on the top of the encoding medium and the medium must be spun around to recover the information. The price of saving data is dropping, but the demand for long-term information storage has increased even more promptly. Holographic data storage opens possibilities for storing information at much higher densities than DVDs and CDs by storing information three- dimensionally throughout the thickness of the storage media. To read more, basics of holographic data storage may be of interest.

In the case of holographic data storage, complete pages of information can be recorded as interference configurations. Several of these holographic configurations may be overlaid in the same photosensitive media by altering the angle or wave phase of the laser used to burn them in the recordable media. In order to access a page of data that was recorded as a hologram in a holodisk, one must focus a laser into the disk with the identical angle and wave phase as the original reference ray used to form the page. To restore different pages of data, the laser is focused on the disk at varying angles. Nonetheless, unlike CDs and DVDs, this need not imply that the laser must move. The angle of the laser ray in the holotechnology drive (Holodrive) may be bounced off of a mirror than can be easily moved. This reduces the extent of mechanical motion and inertia in holodrives vs. traditional disk drives. Further, in contrast to CDs and DVDs, holodisks do not have to spin in order for the drive to read them. For further developments, you may wish to visit polymers and holographic data storage .

In addition to access speed, holotechnology information storage and analytic structures also may be able to provide significantly more information storage density than present day two-dimensional systems. With two- dimensional media, only the top is employed to save data. Although blue laser technology is opening the door for selected enhancements in data density, the requirements of some upcoming uses may exceed the limits of two-dimensional magnetic and optical information storage density. entertainment applications of holographic technology also provides coverage about this.

It is only a matter of time before consumers demand true three- dimensional videos for television, desktop, and mobile applications. In this area, holotechnology science will play an important role. Digital Micro-reflective panel Arrays (DMAs) are created from thousands of reflective panels. The angles of these panels can move many thousand times every second. These alterments change the directions of thousands of rays of light bouncing off of these panels. When these rays of light are coherent laser light, then the thousands of reflective panels can manipulate thousands of laser rays to make animated, three-dimensional images from the interference configurations. At this time, these images are focused into a see-through substance. However, in coming years it may be possible to make moving, 3D pictures in mid-air. Applying this science to television with holographic projection would enable you to see athletics, performances, or other broadcast programming from multiple, 3D perspectives. Learn more on toward lower cost holographic data storage .