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Holography Offers Eye-Safe IR Networking

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Brent D. Johnson

The wireless home and office are upon us, with computers and peripheral components connected by streams of microwaves. However, interference problems and the potential for hackers to intercept these transmissions -- which can penetrate beyond the intended sphere of operation -- have some individuals exploring alternatives. Researchers at the University of Ottawa's School of Information Technology and Engineering have devised a holographic diffuser that would disperse infrared laser radiation over a large area to enable eye-safe transmissions at powers of up to 37.1 mW for wireless...Read full article

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    Published: June 2003
    Glossary
    holography
    Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and diffraction of light. Unlike conventional photography, which records only the intensity of light, holography records both the intensity and phase information of light waves scattered from an object. This allows the faithful reproduction of the object's three-dimensional structure, including its depth, shape, and texture. The process of holography typically involves the...
    Accent on ApplicationsApplicationsCommunicationseye-safe transmissionsholographic diffuserholographyinfrared laser radiationLasers

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