Random lasers from peanut kernel doped with birch leaf–derived carbon dots (degruyterbrill.com) 45 points by PaulHoule 7mo ago ↗ HN
[–] westurner 7mo ago ↗ Would this work on peanuts?"Near-Field Optical Nanopatterning of Graphene" (2025) https://onlinelibrary.wiley.com/doi/10.1002/smsc.202500184 .. https://news.ycombinator.com/item?id=45623301Why are they random lasers?From https://news.ycombinator.com/item?id=45949800 :> "Cavity electrodynamics of van der Waals heterostructures" (2024) https://arxiv.org/abs/2403.19745 ; graphite / graphene optical cavityFrom https://news.ycombinator.com/item?id=44922581 :> "Grover's algorithm to efficiently prepare quantum states in optical cavity QED" (2025) https://phys.org/news/2025-08-grover-algorithm-efficiently-q...:>> "Deterministic carving of quantum states with Grover's algorithm" (2025) https://journals.aps.org/pra/abstract/10.1103/s3vs-xz7w
[–] pertinhower 7mo ago ↗ Yes, but if a chicken and a half laid an egg and a half in a day and a half, how long would it take a monkey with a wooden leg to kick all the seeds off a dill pickle?
[–] bigiain 7mo ago ↗ I skimmed through the article looking for pictures of trees with laser beams shooting out in every direction. Much disappoint.
8 comments
[ 5.0 ms ] story [ 32.4 ms ] thread"Near-Field Optical Nanopatterning of Graphene" (2025) https://onlinelibrary.wiley.com/doi/10.1002/smsc.202500184 .. https://news.ycombinator.com/item?id=45623301
Why are they random lasers?
From https://news.ycombinator.com/item?id=45949800 :
> "Cavity electrodynamics of van der Waals heterostructures" (2024) https://arxiv.org/abs/2403.19745 ; graphite / graphene optical cavity
From https://news.ycombinator.com/item?id=44922581 :
> "Grover's algorithm to efficiently prepare quantum states in optical cavity QED" (2025) https://phys.org/news/2025-08-grover-algorithm-efficiently-q...:
>> "Deterministic carving of quantum states with Grover's algorithm" (2025) https://journals.aps.org/pra/abstract/10.1103/s3vs-xz7w