Extended Data Fig. 4: Excitation intensity-dependent rising kinetics.
From: Optical nonlinearities in excess of 500 through sublattice reconstruction
a-c, The excitation intensity-dependent rising kinetics of the 805-nm emission (3H4 → 3H6) in 26-nm NaYF4:Tm(15%) (a), 27-nm NaLuF4:Tm(15%) (b), and 176-nm NaLuF4:Tm(15%) nanocrystals (c). The rise time is defined as the duration required for the luminescence to reach 95% of its maximum steady-state, providing insights into the responsiveness of the nanocrystals to external stimulation. d, the 805-nm emission (3H4 → 3H6) rise times versus excitation intensity in a, b and c.
