Platform enables tunable photonic crystals with integrated spin-orbit coupling and controlled laser emission

https://phys.org/news/2025-07-platform-enables-tunable-photonic-crystals.html

"self-organized uniform lying helix cholesteric liquid crystals in optical microcavities acts as 1D periodic photonic lattice... liquid crystals responding to electric field enables pitch control/ photonic band structure... light given properties similar to particles endowed with mass... fabrication simpler, cheaper, faster... dynamic control of birefringence formation allows light of different polarizations to interact differently with lattice, creating independent energy bands... tilting leads to interaction between energy subbands for the 2 lattices"

Related: Tunable laser light: Ring design could be used in telecom, medicine and more
https://www.eurekalert.org/news-releases/1090707