Hologram Industry News

Reconnaissance International wiil be publishing� “Directory of Holography Suppliers” this winter.

The guide will be the first of its kind for the rapidly changing industry, and is intended as the ultimate holography resource. Hologram manufacturers can be included in the listings free of charge if they submit their details before 15th September 2007.
The directory, which will be distributed free of charge at the annual Holo-pack•Holo-print conference in Hong Kong, will feature detailed listings of hologram manufacturers and suppliers with different categories to help divide up the vast array of holographic products, systems and technologies that make up the holography industry.
Source:http://www.emediawire.com/releases/2007/7/emw536965.htm

Holographic storage delivers high capacity by recording data throughout the volume of the recording material, and not just on the surface. With each flash of the laser, a data page of approximately 1 million bits is recorded. Each data page is located at a unique address within the material and several hundred pages of data, each with their own unique address, are recorded in the same location of the medium. Each of these collections of data pages is then referred to as a “book.” This new recording technique enables more holograms to be stored in the same volume of material by overlapping not only pages, but also books of data. This dramatically increases the storage density.
source:http://www.embedded-computing.com/news/db/?7030

1947: Denis Gabor invents theory of holography
1960: Invention of laser helps hologram development
1962: Leith and Upatnieks make first laser hologram of toy train and bird
1977: Royal Academy stages Light Fantastic show
2003: Stephen Benton, inventor of credit card holograms, dies

A recent edition of Nature journal reveals how collaboration between scientists in the U.S. and the U.K. has led to a major breakthrough in the understanding of antiferromagnets. Scientists at the Center for Nanoscale Materials at Argonne National Laboratory, the University of Chicago and the London Center for nanotechnology have exploited a technique called “X-ray photon correlation spectroscopy,” to see the internal workings of antiferromagnets, such as the metal chromium, for the very first time.
Gabriel Aeppli, director of the London Centre for Nanotechnology, said, “We haven’t been able to make the same strides forward with antiferromagnets because, until relatively recently, we couldn’t look inside them to see how they were ordered. ”
The internal order of antiferromagnets is on the same scale as the wavelength of X-rays — below 10 nanometres — and these have now been used to produce a `speckle’ pattern which is actually a hologram, or more loosely speaking, a unique fingerprint of a particular magnetic domain configuration.
The new experiments thus help to open the prospect of exploiting antiferromagnets in emerging technologies such as quantum computing.
Source: http://www.hindu.com/seta/2007/05/17/stories/2007051700051500.htm