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200,000 GB CD'S........SCIENCE FICTION?


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1 hour ago, RABid said:

Very interesting, but it looks like affordable laser technology for the player and recorder is a long way off.

 

Exactly, but it does seem that the principles are valid and that with time and effort, this could happen. Of course, then there are the questions about logevity and such, but I've had really good luck with optical media. YMMV.

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I once attended a 'white paper' presentation at my day job (an aerospace company), about using LCD-gated lasers to write and read data from a lithium niobate crystal as holograms. It could store a different bit image at each azimuth angle, so it had a pretty high capacity.  As far as I know it never made it out of the lab though.  Like most lab curiousities...

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13 hours ago, Philbo King said:

...using LCD-gated lasers to write and read data from a lithium niobate crystal as holograms. It could store a different bit image at each azimuth angle, so it had a pretty high capacity. As far as I know it never made it out of the lab though.  Like most lab curiousities...

It will come back around whenever there is more need for computer-generated holograms (CGH).😎

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PD

 

"The greatest thing you'll ever learn, is just to love and be loved in return."--E. Ahbez "Nature Boy"

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  • 2 weeks later...
On 7/9/2024 at 9:57 AM, ProfD said:

It will come back around whenever there is more need for computer-generated holograms (CGH).😎

 

It'll flower as soon as someone figures out how to make it a vehicle for porn. Many a parent has screamed like a chicken when their $#@! toddler came out of their closet chewing on one of Mommy & Daddy's very private VHS tapes. 😬  

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Do what makes you happy this week.
So long as it’s not eating people.
Eating people is bad.
People have diseases.
      ~ Warren Ellis

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