Enhanced frequency up-conversion in Rb vapor

被引：88

作者：

Vernier, A. ^{[1
]}

Franke-Arnold, S. ^{[1
]}

Riis, E. ^{[2
]}

Arnold, A. S. ^{[2
]}

机构：

[1] Univ Glasgow, Dept Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 16期

关键词：

ELECTROMAGNETICALLY INDUCED TRANSPARENCY; 2-PHOTON SPECTROSCOPY; DIODE-LASER; RUBIDIUM; COHERENT; CESIUM; ATOMS;

D O I：

10.1364/OE.18.017020

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate highly efficient generation of coherent 420 nm light via up-conversion of near-infrared lasers in a hot rubidium vapor cell. By optimizing pump polarizations and frequencies we achieve a single-pass conversion efficiency of 260% per Watt, significantly higher than in previous experiments. A full exploration of the coherent light generation and fluorescence as a function of both pump frequencies reveals that coherent blue light is generated close to Rb-85 two-photon resonances, as predicted by theory, but at high vapor pressure is suppressed in spectral regions that do not support phase matching or exhibit single-photon Kerr refraction. Favorable scaling of our current 1 mW blue beam power with additional pump power is predicted. (C) 2010 Optical Society of America

引用

页码：17020 / 17026

页数：7

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