MODEL OF THE PHOTON-AVALANCHE EFFECT

被引：163

作者：

JOUBERT, MF

GUY, S

JACQUIER, B

机构：

[1] Laboratoire de Physico-Chimie des Matériaux Luminescents, Université Claude Bernard Lyon I, Bâtiment 205, 69622 Villeurbanne Cedex

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.48.10031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photon-avalanche effect. which involves both absorption from a metastable intermediate level and cross-relaxation energy transfer, introduces a new trend in the achievement of efficient up-conversion lasers. In this paper, we report a quite general theoretical treatment of this process which is successfully applied to the case of LiYF4:Nd3+. This model shows clearly that the avalanche effect may occur, above a pumping threshold, only if the cross-relaxation energy-transfer probability is higher than the relaxation rate from the up-converted excited state to the levels located below the metastable intermediate state.

引用

页码：10031 / 10037

页数：7

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