DVD data layers, SEM

DVD data layers, SEM

T500/0224 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 22.6MB

Downloadable file size: 3.5MB

Price image Pricing

Please login to use the price calculator


This image is part of the feature Everyday Objects Seen Under The Sem Microscope

Credit: POWER AND SYRED/SCIENCE PHOTO LIBRARY

Caption: DVD layers. Coloured scanning electron micrograph (SEM) of the pitted layers that encode information on a DVD (digital versatile disc). The pits are read by a focused laser as the disc rotates. This is a double-layer DVD, which can hold up to 8.5 gigabytes (GB) of information. One layer (gold) is semi-transparent. A second layer (silver) is bonded to the gold layer by a clear adhesive layer (grey). After the laser has read the information on the gold layer (from the centre of the disc outwards), the laser refocuses itself on the silver layer and reads from that, from the outer edge inwards. Magnification: x700 at 6x7cm size.

Release details: Model release not required. Property release not required.

Keywords: adhesive, audio, coloured, digital versatile disc, disk, double, double-layer, dvd, film, gold, information storage, laser, layer, layers, many, media, medium, multiple, optical, pit, pits, sandwiched, scanning electron micrograph, sem, silver, sound, surface, surfaces, technology, video

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.