Synchronously pumped laser without inversion in cadmium

被引：23

作者：

de Jong, FB ^{[1
]}

Mavromanolakis, A ^{[1
]}

Spreeuw, RJC ^{[1
]}

van den Heuvell, HBV ^{[1
]}

机构：

[1] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.57.4869

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a lasing without inversion (LWI) experiment on the basis of coherent population trapping, realized in low-pressure cadmium vapor. A single-pass inversionless amplification by more than a factor of 10 has been measured, a significant improvement over previous experiments. In addition, we report synchronously pumped laser oscillation without inversion. Using a simple model to fit the gain/absorption curves as a function of magnetic field, we have obtained values for the populations in the system, showing that there is no inversion in the atomic basis. Combined with a simple optical method to measure absolute densities of a gas, this model results in a completely optical method to determine the absolute populations and density in the system.

引用

页码：4869 / 4876

页数：8

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