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Topic: '5D' storage could fit 500TB on a CD-sized glass disc (Read 779 times) previous topic - next topic
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'5D' storage could fit 500TB on a CD-sized glass disc

Using high-speed lasers, researchers have created "5D" data storage technology that could allow 500 TB of data to be written to a CD-sized glass disc, according to the Optica society. The technique uses higher writing speeds that might finally make it feasible to use the technology for archival and other purposes.

With 5D optical storage, each file is uses three layers of nanoscale dots. The dots' size, orientation and position within the three standard dimensions, make up the five "dimensions." The dots change the polarization of light travelling through the disc which is read using a microscope and polarizer.

We've seen 5D optical storage before, but there were a number of problems — particularly the slow writing speeds that made the technology impractical. It has huge upsides for (extremely) long-term storage, though. It's been estimated that the storage medium could withstand temperatures up to 1,000 degrees C and last 13.8 billion years at room temperature without degrading.

https://www.engadget.com/5-d-storage-could-fit-500-tb-on-cd-sized-disc-095039455.html
https://www.osa.org/en-us/about/newsroom/news_releases/2021/high-speed_laser_writing_method_could_pack_500_ter/

The CD isn't dead yet. 💿
No religion, please.

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #1
Call me when it's available and affordable...

Quote
and last 13.8 billion years at room temperature without degrading.
Not 13.5, not 14, but 13.8...   Can't they just say "indefinitely"?   

Good luck keeping at room temperature and protecting it from manmade or natural disasters or the death of the sun and if there's anyone around they won't give a darn about your "data".   :D  

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #2
Not 13.5, not 14, but 13.8...
Probably because it is matches some 5*10N number of days?

<joke>
Museum intern: ... and this T-rex jawbone is around 68000014 years old.
Visitor: huh, where did you get the fourteen?
Intern: I will never forget the professor who told me "sixty-eight million" when I was here as a kid
</joke>
High Voltage socket-nose-avatar

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #3
They're trying to create a 'foundation' of data.   :))
No religion, please.

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #4
it just so happens that the universe is 13.8 billion years old right now. make of that what you will.

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #5
it just so happens that the universe is 13.8 billion years old right now. make of that what you will.
*facepalm* right ...
High Voltage socket-nose-avatar

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #6
Given that all life on Earth will be extinct in around 4 billion years, and the planet will be absorbed into the Sun in around 7 billion years, all seems somewhat irrelevent!!

Re: '5D' storage could fit 500TB on a CD-sized glass disc

Reply #7
Finally, Elvis can now live on forever … ;~)
Quis custodiet ipsos custodes?  ;~)