Phys.org: High-speed laser writing method could pack 500 terabytes of data into CD-sized glass disc

[Karl]

i'm doing some readonly stuff right now and clicked this thread!

https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-8-11-1365&id=462661

I only skimmed it quick.  this involves reading sentences from the middle
of the abstract, from materials and methods, and from the conclusion.  here
are fun points regarding this random article:

- presently described using research-grade femtosecond lasers, optics, etc,
because their setup is organised for comparison of approaches, not uses
- similarly their paper reportedish 1-200 K/s write speed 1-100 b/s read
speed, with pointers for how to develop new setups with MB/s speed.
- high density due to 5 degrees of freedom to the artefact written to the
transparent medium
- other uses in shaping detailed nanomaterials
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