https://www.nist.gov/publications/240-hz-linewidth-brillouin-laser-microrod-whispering-gallery-mode-resonator
We demonstrate an ultra-low noise laser that oscillates based on the stimulated Brillouin scattering nonlinearity in an optical microresonator.
whispering galleryhzlinewidthbrillouinlaser
https://www.nist.gov/publications/highly-efficient-generation-single-mode-photon-pairs-crystalline-whispering-gallery
We report on the highly-efficient generation of narrow-band pair-photons in one single spatiotemporal mode using parametric down-conversion in a crystalline whi
highly efficientsingle modegenerationphotonpairs