Measurement of steep dispersion associated with magnetically assisted gain in Zeeman degenerate two-level system of cold atoms

IF 1.5 4区物理与天体物理 Q3 OPTICS

Journal of Physics B: Atomic, Molecular and Optical Physics Pub Date : 2024-03-04 DOI:10.1088/1361-6455/ad2b6f

J C de Aquino Carvalho, R S N Moreira, J W R Tabosa

{"title":"Measurement of steep dispersion associated with magnetically assisted gain in Zeeman degenerate two-level system of cold atoms","authors":"J C de Aquino Carvalho, R S N Moreira, J W R Tabosa","doi":"10.1088/1361-6455/ad2b6f","DOIUrl":null,"url":null,"abstract":"We report on the measurements of magnetically assisted dispersion and gain in a Zeeman degenerate two-level system associated with the closed <italic toggle=\"yes\">D</italic>\n<sub>2</sub> hyperfine transition <inline-formula>\n<tex-math><?CDATA $F_\\mathrm{g} = 3 \\rightarrow F_\\mathrm{e} = 2$?></tex-math>\n<mml:math overflow=\"scroll\"><mml:msub><mml:mi>F</mml:mi><mml:mrow><mml:mi mathvariant=\"normal\">g</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:mn>3</mml:mn><mml:mo stretchy=\"false\">→</mml:mo><mml:msub><mml:mi>F</mml:mi><mml:mrow><mml:mi mathvariant=\"normal\">e</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:mn>2</mml:mn></mml:math>\n<inline-graphic xlink:href=\"bad2b6fieqn1.gif\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula> cold cesium atoms. We use a Mach–Zehnder interferometer to measure the dispersive properties of this system in the presence of a magnetic field, transversal to the quantization direction, when the atomic system is excited by a coupling and probe beams with orthogonal polarizations. We have measured the spectrum of the refraction index for different magnitudes of the external magnetic field and different coupling beam intensities. A previously published theoretical model, using a simpler atomic transition <inline-formula>\n<tex-math><?CDATA $F_\\mathrm{g} = 1 \\rightarrow F_\\mathrm{e} = 0$?></tex-math>\n<mml:math overflow=\"scroll\"><mml:msub><mml:mi>F</mml:mi><mml:mrow><mml:mi mathvariant=\"normal\">g</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy=\"false\">→</mml:mo><mml:msub><mml:mi>F</mml:mi><mml:mrow><mml:mi mathvariant=\"normal\">e</mml:mi></mml:mrow></mml:msub><mml:mo>=</mml:mo><mml:mn>0</mml:mn></mml:math>\n<inline-graphic xlink:href=\"bad2b6fieqn2.gif\" xlink:type=\"simple\"></inline-graphic>\n</inline-formula>, accounts reasonably for the experimentally observed gain and dispersive lineshapes.","PeriodicalId":16826,"journal":{"name":"Journal of Physics B: Atomic, Molecular and Optical Physics","volume":"62 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics B: Atomic, Molecular and Optical Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1361-6455/ad2b6f","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

Abstract

We report on the measurements of magnetically assisted dispersion and gain in a Zeeman degenerate two-level system associated with the closed D ₂ hyperfine transition

Fg=3→Fe=2

cold cesium atoms. We use a Mach–Zehnder interferometer to measure the dispersive properties of this system in the presence of a magnetic field, transversal to the quantization direction, when the atomic system is excited by a coupling and probe beams with orthogonal polarizations. We have measured the spectrum of the refraction index for different magnitudes of the external magnetic field and different coupling beam intensities. A previously published theoretical model, using a simpler atomic transition

Fg=1→Fe=0

, accounts reasonably for the experimentally observed gain and dispersive lineshapes.

查看原文本刊更多论文

测量冷原子泽曼变性两级系统中与磁辅助增益相关的陡峭色散

我们报告了与封闭 D2 超精细转变 Fg=3→Fe=2 冷铯原子相关的泽曼退化两级系统中磁辅助色散和增益的测量结果。我们使用马赫-泽恩德干涉仪测量了该系统在磁场（横向于量子化方向）存在时的色散特性，此时原子系统由耦合光束和正交偏振的探测光束激发。我们测量了不同外磁场强度和不同耦合光束强度下的折射率光谱。之前发表的一个理论模型，使用了一个更简单的原子转变 Fg=1→Fe=0 ，合理地解释了实验观察到的增益和色散线形。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Physics B: Atomic, Molecular and Optical Physics 物理-光学

CiteScore

3.60

自引率

6.20%

发文量

182

审稿时长

2.8 months

期刊介绍： Published twice-monthly (24 issues per year), Journal of Physics B: Atomic, Molecular and Optical Physics covers the study of atoms, ions, molecules and clusters, and their structure and interactions with particles, photons or fields. The journal also publishes articles dealing with those aspects of spectroscopy, quantum optics and non-linear optics, laser physics, astrophysics, plasma physics, chemical physics, optical cooling and trapping and other investigations where the objects of study are the elementary atomic, ionic or molecular properties of processes.