Question

光量子产率可能大于百分之百吗

Answer 1

可以.很多激光含有crossing relaxation能量转换的,光量子产率就可能会大于百分之百.

例如,“Thulium-doped 1.9-μm fiber lasers,where ions are pumped into the level 3F2−4,and a cross-relaxation process populates the upper laser level 3H4.This could in principle lead to a quantum efficiency of up to 200%.Values well above 100% can be reached in practice.”