Anti-stokes laser cooling in Yb3+-doped KPb2Cl5 crystal

被引：67

作者：

Mendioroz, A

Fernández, J

Voda, M

Al-Saleh, M

Balda, R

García-Adeva, AJ

机构：

[1] Univ Basque Country, Dept Fis Aplicada 1, Bilbao 48013, Spain

[2] Los Alamos Natl Lab, Struct Property Relat Grp, Los Alamos, NM 87545 USA

来源：

OPTICS LETTERS | 2002年 / 27卷 / 17期

关键词：

Anti-Stokes laser cooling;

D O I：

10.1364/OL.27.001525

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report internal laser cooling in Yb3+-doped KPb2Cl5. From the quantum efficiency values measured in the heating and cooling regions by use of the photothermal deflection technique, we have obtained a room-temperature cooling efficiency of 0.2% in a sample doped with similar to5 X 10(19) ions/cm(3). Excitation spectra obtained under high irradiation fluences show an excess of fluorescence with regard to those obtained at low fluences, which agrees with the prediction of a model based on photon-ion-phonon interaction. (C) 2002 Optical Society of America.

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页码：1525 / 1527

页数：3

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