coherent light and holography

Prior to more discussion of holotechnology applied science usages, we should consider the basics of how holograms are stored in, and restored from, optical media. In order to record and retrieve a meaningful holotechnology picture, the crossing light rays must be "wave-synchronous." Wave-synchronous beams are those within which the rays of light have the same wave frequency and phase timing. Absent phase synchronization, one just gets the 3D equivalent of the "white noise" seen on a TV that is set between stations. Lasers have coherent rays of light and are usually applied in holographic science. Usually a single laser ray is divided through a semi- reflective reflective panel into the signal beam and reference beam to ensure synchronization of the rays. Also, Holographic Movies and New Holographic Technologies has information on holotech.

In addition to data transfer speed, holographic information memory and processing systems also may be able to provide much more data storage capacity than present day 2D systems. With two- dimensional media, only the surface is used to store data. While blue laser technology is opening the door for some improvements in data density, the requirements of some expected usages may exceed the limits of two-dimensional magnetic and optical data storage density. The site on Virtual Trade delves into some of these issues as well.

Linked page Holographic Cubes also has information regarding this holotech topic.