Extended Data Fig. 5: Photon avalanche performance of NaLuF4:Tm(15%) nanodiscs and NaYF4:Tm(15%) nanodiscs.
From: Optical nonlinearities in excess of 500 through sublattice reconstruction
a-b, TEM (a) and SEM (b) images of monolayer NaLuF4:Tm(15%) nanodiscs, with diameter of ~ 176 nm. c, photon avalanche response of 176-nm NaLuF4:Tm(15%) nanodiscs. d, TEM image of NaYF4:Tm(15%) nanodiscs with a mean diameter of approximately 160 nm. e, Photon avalanche response of 160-nm NaYF4:Tm(15%) nanodiscs.
