Whispering gallery mode microlaser at liquid Helium temperature

被引：21

作者：

Treussart, F

Ilchenko, VS

Roch, JF

Domokos, P

Hare, J

Lefevre, V

Raimond, JM

Haroche, S

机构：

[1] Ecole Normale Super, Dept Phys, Lab Kastler Brossel, F-75231 Paris 05, France

[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia

[3] Hungarian Acad Sci, Crystal Phys Res Lab, H-1502 Budapest, Hungary

来源：

JOURNAL OF LUMINESCENCE | 1998年 / 76-7卷

关键词：

monolithic microcavities; microlaser; cavity quantum electrodynamics;

D O I：

10.1016/S0022-2313(97)00175-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the realization of neodymium-doped silica microsphere laser, of diameters in the range 50-100 mu m. Following very low threshold observed at room temperature (absorbed pump power of 200 nW), we present the new cryogenic setup operating at 2K. Very high quality factor Q > 3 x 10(8) has been preserved in a 50 mu m diameter microsphere immersed in superfluid Helium. Preliminary results on lasing at this temperature have also been obtained as a first step towards a 'thresholdless' regime. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：670 / 673

页数：4

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