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The video here is interesting. > The applications - it seems to me particularly - in optoelectronic circuits would be tremendous. Research level optics is ver

The video here is interesting. > The applications - it seems to me particularly - in optoelectronic circuits would be tremendous. Research level optics is very high quality glass [1], with surface irregularity down to 100s of nm. But the company is trying to sell lenses [2], so perhaps for some cheap commercial applications you can create nice lenses using this method. That would be still be excellent. [1] https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=123 https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=12... [2] https://www.glassomer.com/products/lenses.html https://www.glassomer.com/products/lenses.html

Bluestein 2y ago
Nicely found.- > with surface irregularity down to 100s of nm. That is an amazing level of precision.-
- abdullahkhalids 2y ago
  To give this some fun context, carbon atoms are roughly 0.1 nm across. So that's means little bumps of 100s or 1000s of atoms are allowed on the surface. Might seem bad at first glance, but I think it just points to how small atoms really are. Besides, such bumps don't really effect the light being used. Coming back to 3D printing, if their surface irregularity is two orders of magnitude worse, that means 100k atom bumps. Really speaks to how difficult these engineering challenges are.
  - Bluestein 2y ago
    > think it just points to how small atoms really are A fascinating fact, along with how hollow ...
    - vinnyvichy 2y ago
      PI from Glassomer's team reports sub-micrometer resolution elsewhere, see (July 2024) https://onlinelibrary.wiley.com/doi/10.1002/advs.202405320 https://onlinelibrary.wiley.com/doi/10.1002/advs.202405320
  - deleted 2y ago
    [deleted]
gradschoolfail 2y ago
This class of methods should be able to reach submicron resolution. I am fairly certain the various teams are working hard to improve that. Regarding optoelectronics, perhaps these are already good enough for NIR applications? https://www.nature.com/articles/s41467-023-38996-3 https://www.nature.com/articles/s41467-023-38996-3 https://www.nature.com/articles/s41467-024-46929-x https://www.nature.com/articles/s41467-024-46929-x

Bluestein 2y ago

Nicely found.- > with surface irregularity down to 100s of nm. That is an amazing level of precision.-

abdullahkhalids 2y ago
To give this some fun context, carbon atoms are roughly 0.1 nm across. So that's means little bumps of 100s or 1000s of atoms are allowed on the surface. Might seem bad at first glance, but I think it just points to how small atoms really are. Besides, such bumps don't really effect the light being used. Coming back to 3D printing, if their surface irregularity is two orders of magnitude worse, that means 100k atom bumps. Really speaks to how difficult these engineering challenges are.
- Bluestein 2y ago
  > think it just points to how small atoms really are A fascinating fact, along with how hollow ...
  - vinnyvichy 2y ago
    PI from Glassomer's team reports sub-micrometer resolution elsewhere, see (July 2024) https://onlinelibrary.wiley.com/doi/10.1002/advs.202405320 https://onlinelibrary.wiley.com/doi/10.1002/advs.202405320
- deleted 2y ago
  [deleted]

gradschoolfail 2y ago

This class of methods should be able to reach submicron resolution. I am fairly certain the various teams are working hard to improve that. Regarding optoelectronics, perhaps these are already good enough for NIR applications? https://www.nature.com/articles/s41467-023-38996-3 https://www.nature.com/articles/s41467-023-38996-3 https://www.nature.com/articles/s41467-024-46929-x https://www.nature.com/articles/s41467-024-46929-x