holography


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hol·og·ra·phy

(hol-og'ră-fē),
The process of creating a hologram.

hol·og·ra·phy

(hol-og'ră-fē)
The process of creating a hologram.

holography

A technique for obtaining a stereoscopic image of an object without the use of lenses. It consists of recording on a photographic plate the pattern of interference between coherent light reflected from the object and light that comes directly from the same source (or is reflected from a mirror). The coherent light is usually provided by a laser. The photographic recording on the plate (called a hologram) when illuminated with coherent light yields an image that is identical in amplitude and phase distribution with the original wave from the object. It thus provides a three-dimensional image of the object in the sense that the observer's eyes must refocus to examine foreground and background and indeed 'look around' objects by simply moving the head laterally.
References in periodicals archive ?
Moreover, endoscopic holography should emerge as a powerful tool for non-contact high resolution and non-invasive measurements inside the human organs.
The term "holography" was first coined by Dennis Gabor, who discovered the process accidentally while performing research into improving electron microscopes in 1948; Gabor subsequently was honored with the Nobel Prize for this work.
The researchers turned to holography after exploring other options, including laser deflectors and digital displays used in many portable projectors to stimulate these cells.
Holography is a photographic process in which light is bent to create a three-dimensional picture.
The holography conference was chaired by Hans Bjelkhagen, Glyndwr University, UK, and V Michael Bove Jr, MIT Media Lab, USA, and attracted about 50 participants.
JHS, to be launched in January, is targeted to scientists and engineers working in the fields of holography, speckle, lasers, optical science and engineering.
In photoelectron holography, a burst of finely tuned X-rays illuminates a small patch on a crystal surface.
[ClickPress, Wed Apr 10 2019] Looking at the current market trends as well as the promising demand status of the " Medical Holography Market ", it can be projected that the future years will bring out positive outcomes.
This is the only global conference for the commercial holography industry--and it has tracked every new development in holography since 1990.
23 SCIENCE that they have passed important milestones in X-ray holography, the main microscopy technique for producting three-dimensional images.