Sci-Fi by Claudia Sonea

Breaking news about a new generation of 3-D technology that provides realistic, updatable holograms in nearly real time, unveiled by scientists in the United States on Wednesday. This could mean much for the movie industry (3-D holographic movies that makes the viewers to feel like their inside), for the military commanders (a three-dimensional picture of a battlefield), medicine (complex micro-surgery inside a patient) and for a several other domains. The new technology is described in the British journal Nature, by Nasser Peyghambarian of the University of Arizona and colleagues who reported they recorded images on a palm-sized screen measuring just 10X10 centimeters. It creates holograms (been used previously in advertising, art and entertainment as static displays) by shining 3 lasers: one on an object, whose image falls on a photosensitive screen, while the second falls on the screen, creating condensed contours of the object, which are imbedded in the film and the third laser, called the reading beam, directed onto the screen will resurrect interference pattern. As in a Sci-Fi movie the 3 lasers creates an image in three dimensions that appears in mid-air behind the screen. Nevertheless that one day a 3-D motion picture will become a reality. Peyghambarian's team were able to update the image in about three minutes and hold it there for up to three hours based on the films called photorefractive polymers which contain molecules of dye that respond to light and rotate and line up in response to an applied electrical field. The 3D effect is viewable within a given angle by a person in front of the screen; a slight move could lead to the loss of the effect. Joseph Perry of the Georgia Institute of Technology in Atlanta, stated for Nature, that the technology is promising, but there is need of higher-powered lasers and more sensitive photorefractive polymers ushered in larger and faster 3-D displays. Don't get your hopes up yet, there is more probably for competition from flat-panel 3D screens and other rivals to take the lead and bring something innovative, before this technology takes shape. However, hopes die last! Enjoy.

related story: http://news.yahoo.com/s/afp/20080206/hl_afp/sciencetechnologyhealthentertainment_080206184040;_ylt=AnJ0jKjumuDoIL4xqNWeLnGs0NUE

by Claudia Sonea for PocketNews (http://pocketnews.tv)

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Edited by Katarina Rastocna