Frequency characteristics of collimated blue light generated by four-wave mixing in cesium vapor

被引：1

作者：

Yang, Baodong ^{[1
,2
,3
,4
]}

Xu, Jing ^{[1
]}

Fan, Jian ^{[1
]}

Zhou, Haitao ^{[1
]}

机构：

[1] Shanxi Univ, Coll Phys & Elect Engn, Taiyuan 030006, Peoples R China

[2] Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China

[3] Shanxi Univ, Inst Optoelect, Taiyuan 030006, Peoples R China

[4] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

来源：

OPTICS LETTERS | 2024年 / 49卷 / 14期

基金：

中国国家自然科学基金;

关键词：

UP-CONVERSION; 2-PHOTON EXCITATION;

D O I：

10.1364/OL.525940

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The frequency evaluation of collimated blue light (CBL) generated by parametric four-wave mixing (FWM) in hot atomic vapor is presented. The cesium (Cs-133) atoms are excited from the 6S(1/2) ground state to 8S(1/2) excited state with the 852 and 795 nm pump lasers, producing an optical field at 4.2 mu m through an amplified spontaneous emission via population inversion on the 8S(1/2 )-> 7P(3/2) transition and the 456 nm CBL via FWM on the 7P(3/2 )-> 6S(1/2) transition. The frequency shift of 456 nm CBL has been measured by velocity-selective optical pumping spectral technique when the frequency of any one of two pumping lasers is tuned. The ratio of the frequency shift of 456 nm CBL to the two-photon frequency detuning of two pumping lasers is 0.8912, implying that the generated 4.2 mu m light frequency is also correspondingly shifted. (c) 2024 Optica Publishing Group

引用

页码：3846 / 3849

页数：4

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