AVALANCHE UPCONVERSION IN TM-YALO3

被引：71

作者：

NI, H

RAND, SC

机构：

[1] Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, 48109-2122

来源：

OPTICS LETTERS | 1991年 / 16卷 / 18期

关键词：

D O I：

10.1364/OL.16.001424

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the sudden appearance of upconversion fluorescence and resonant increasing absorption above a threshold intensity in Tm.YALO3 at room temperature. These effects are shown to arise from nonlinear, cooperative, excited-state dynamics. Comparison with quantum theory reveals essential roles both for pairwise cross relaxation and excitation migration among Tm impurity ions.

引用

页码：1424 / 1426

页数：3

共 6 条

[1]

CHIVIAN JS, 1979, APPL PHYS LETT, V35, P124, DOI 10.1063/1.91044

[2]

HOBROCK LM, 1972, THESIS U SO CALIFORN

[3] PHOTON AVALANCHE UPCONVERSION LASER AT 644NM [J].