Talk:5D DVD

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So what's the tech behind this one?[edit]

It claims to be superior, although similar to Holographic versatile disks with claims of up to double the capacity. How does it achieve this? Nearfield optics? Anyone know?--Spectatorbot13 (talk) 15:53, 26 June 2009 (UTC)

Read the sources. As I understand it, it reads data from several different layers, and through different polarizations, using three different colours of lasers (instead of current DVDs and Blu-Rays that only use one colour) and thus create multiple different densely-packed layers each readable only by one, or a combination of, the different lasers. In short, with miniaturized data points and all, it's like packing several DVD layers into much less physical space. --BlueSquadronRaven 22:24, 26 June 2009 (UTC)

Graphene-based holographic optical disc created[edit]

The team from Swinborne university, mentioned in the wiki page, has produced a protoyte holographic disc. This new information should probably be included in the wiki page.


Scientists create the first graphene-based holographic optical disc

By Sebastian Anthony on October 3, 2013 at 12:06 pm

http://www.extremetech.com/extreme/167931-scientists-create-the-first-graphene-based-holographic-optical-disc


Published Report

Giant refractive-index modulation by two-photon reduction of fluorescent graphene oxides for multimode optical recording

Xiangping Li, Qiming Zhang, Xi Chen & Min Gu

http://www.nature.com/srep/2013/131002/srep02819/full/srep02819.html — Preceding unsigned comment added by 118.210.46.123 (talk) 18:16, 2 January 2014 (UTC)