Nanophotonic waveguide chip-to-world beam scanning

(nature.com)

3 points | by bookofjoe 8 hours ago ago

2 comments

  • westurner an hour ago

    > Abstract: [...] Here we report a photonic ski-jump — a nanoscale waveguide monolithically integrated on a piezoelectric cantilever [...] Finally, by demonstrating uniformity across a 64 ski-jump array, we establish a pathway to achieving greater than one gigaspot resolution at kilohertz rates within a sub-5-cm-diameter footprint, creating a seamless optical pipeline between integrated photonic processors and the free-space world

    • westurner 22 minutes ago

      From https://news.ycombinator.com/item?id=46954012 :

      > Isn't there a curved photonic beam method that technically, in space, can send a photon around the world at least once?

      > Airy beams curve

      Does this already implement airy beams? That could workaround photonic waveguide space constraints; it's lossy to cross photons on a bus because photons do interfere and there's not room for that many layers of fiber in a chip.

      But still a free space photonic computer doesn't have gates; though there are at least some operators in photon-photon interactions.

      (It's become unacceptable to post AI generated comments on HN and I'm annoyed at the level of work required to paraphrase and I don't owe anyone my time or my work and I don't want to uncitedly suppose LLM AI-supported research as anything but, and I would just link to the chat but so here's this just: Polaritonic Airy Beam