Friday, May 18, 2007

Dennis Gabor: Father of Holography

Dennis Gabor (Gábor Dénes) ,FRS, (June 5, 1900, Budapest – February 9, 1979, London) was a Hungarian physicist and inventor, most notable for inventing holography, for which he later received the Nobel Prize in Physics.

Holography is a lens-less type of photography in which a wave field of light scattered by an object is recorded as an interference pattern on a plate. In holography the total of all the information has to be used; not only the amplitude, as in usual optical imaging, but also the phase. In this manner a complete holo-spatial picture is obtained.

An electromagnetic energy hologram is defined as the whole (or entire) 3-D message contained in a beam of light, compared with the partial message obtained in an ordinary two-dimensional (2-D) photograph.

When Gabor first invented holography he did not produce actual holograms which had to wait until the invention (in 1962) of the laser (light amplification by stimulated emission of radiation) as no coherent light source existed at the time.

"The best way to predict the future is to create it", Dennis Gabor

Other practical uses include:

Holographic data storage: a technique that can store information at high density inside crystals or photopolymers. As current storage techniques such as Blu-ray reach the denser limit of possible data density (due to the diffraction-limited size of the writing beams), holographic storage has the potential to become the next generation of popular storage media.

Holograms can be made using sound waves and other waves in the electro-magnetic spectrum. Holograms made with X-rays or ultraviolet light can record images of particles smaller than visible light, such as atoms or molecules. Microwave holography detects images deep in space by recording the radio waves they emit. Acoustical holography uses sound waves to "see through" solid objects.

Higher order holographic image events that involve dynamic movement or energetic activities which produce changes in material or nonmaterial space through time are reconstructed from energetic holograms having at least four dimensions (4-D).

NASA, Bell Labs and SONY are some of the companies at the cutting edge of holographic implementation. Its uses and applications are too numerous to enlist...

"The three-dimensional reality interested artists from the age of Velasquez; presently analytical cubism of Picasso has tried to take possession of Velasquez's 3-D reality. Now, due to the genius of Gabor, holography has made possible art renaissance, and the doors of a new area of creativity have opened ahead of me", Salavdor Dali.

Informational universe theoreticians have hypothesized that a sufficiently advanced civilization could record the entirety of its history and experience, both qualitative and quantitative in a single holographic plate no bigger than a grain of sand. Of course it has also been sustained by mystics of all the ages that this is exactly what the universe does at all times and that one can access the recordings of time past and time future just by looking into a molecule of pure air (akasia oracle).


Gabors discovery elegantly transcends the field of applied science, in the way of old-school harmonics it reflects beautifully a cosmic pattern of organizing information. His work has been continued by the likes of David Bohm and Karl Pribram, who have added a quantum dimension where mind and space are seen as a holonomimicaly transforming entity in which subatomic particles and memory (as bits or memes) are at all times a reflection of the totality, in themselves containing and interconnecting the totality of all information and consciousness as basic energy unfolding from the unfathomable ocean of implicate unity.

Gabor should certainly feel good (aetherial sunny smile) for networking the tools that give imagination its conceptual grounds and avail the formation of an image unparalleled in the history of mankind. The realization of the heartfelt intuition that inspired William Blake when he said:

To see a world in a grain of sand
and a heaven in a wild flower,
to hold infinity in the palm of your hand
and eternity in an hour.

1 comment:

Anonymous said...

thankyou for this post.