升频转换的实质及变换的讨论

DISCUSSION IOW OF THE SUBSTANCE OF UPCONVERSION AND CONVERSION

本文通过对多光子升频转换的研究 ,得出了一定的规律 ,提出并导出了相关量的近似关系公式 ,并利用该公式对 Er:Yb:PO4 盐及掺

Multi-photon upconversion is existing .This research is how to choose laser material.This article sums up the rule of multi-photon upconversion ,gives an approximate equation and sums some phenomenon in laser material of Er:Yb:PO 4 and Tm.