Chintan Shah, S. Kühn, Sonja Bernitt, René Steinbrügge, Moto Togawa, Lukas Berger, Jen Buck, Moritz Hoesch, J. Seltmann, Mikhail G. Kozlov, S. Porsev, Ming Feng Gu, F. S. Porter, Thomas Pfeifer, M. A. Leutenegger, Charles Cheung, M. S. Safronova, José R. Crespo López-Urrutia
{"title":"Natural-linewidth measurements of the \n<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"><mml:mn>3</mml:mn><mml:mi>C</mml:mi></mml:math>\n and \n<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"><mml:mn>3</mml:mn><mml:mi>D</mml:mi></mml:math>\n soft-x-ray transitions in Ni xix","authors":"Chintan Shah, S. Kühn, Sonja Bernitt, René Steinbrügge, Moto Togawa, Lukas Berger, Jen Buck, Moritz Hoesch, J. Seltmann, Mikhail G. Kozlov, S. Porsev, Ming Feng Gu, F. S. Porter, Thomas Pfeifer, M. A. Leutenegger, Charles Cheung, M. S. Safronova, José R. Crespo López-Urrutia","doi":"10.1103/physreva.109.063108","DOIUrl":null,"url":null,"abstract":"<jats:p>We used the monochromatic soft-x-ray beamline P04 at the synchrotron-radiation facility PETRA III to resonantly excite the strongest <a:math xmlns:a=\"http://www.w3.org/1998/Math/MathML\"><a:mrow><a:mn>2</a:mn><a:mi>p</a:mi><a:mtext>−</a:mtext><a:mn>3</a:mn><a:mi>d</a:mi></a:mrow></a:math> transitions in neonlike <b:math xmlns:b=\"http://www.w3.org/1998/Math/MathML\"><b:mi>Ni</b:mi><b:mspace width=\"0.28em\"/></b:math> ions, <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\"><d:mrow><d:msub><d:mrow><d:mo>[</d:mo><d:mn>2</d:mn><d:msup><d:mi>p</d:mi><d:mn>6</d:mn></d:msup><d:mo>]</d:mo></d:mrow><d:mrow><d:mi>J</d:mi><d:mo>=</d:mo><d:mn>0</d:mn></d:mrow></d:msub><d:mo>→</d:mo><d:msub><d:mrow><d:mo>[</d:mo><d:msub><d:mrow><d:mo>(</d:mo><d:mn>2</d:mn><d:msup><d:mi>p</d:mi><d:mn>5</d:mn></d:msup><d:mo>)</d:mo></d:mrow><d:mrow><d:mn>1</d:mn><d:mo>/</d:mo><d:mn>2</d:mn></d:mrow></d:msub><d:mspace width=\"0.16em\"/><d:mn>3</d:mn><d:msub><d:mi>d</d:mi><d:mrow><d:mn>3</d:mn><d:mo>/</d:mo><d:mn>2</d:mn></d:mrow></d:msub><d:mo>]</d:mo></d:mrow><d:mrow><d:mi>J</d:mi><d:mo>=</d:mo><d:mn>1</d:mn></d:mrow></d:msub></d:mrow></d:math> and <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\"><f:mrow><f:msub><f:mrow><f:mo>[</f:mo><f:mn>2</f:mn><f:msup><f:mi>p</f:mi><f:mn>6</f:mn></f:msup><f:mo>]</f:mo></f:mrow><f:mrow><f:mi>J</f:mi><f:mo>=</f:mo><f:mn>0</f:mn></f:mrow></f:msub><f:mo>→</f:mo><f:msub><f:mrow><f:mo>[</f:mo><f:msub><f:mrow><f:mo>(</f:mo><f:mn>2</f:mn><f:msup><f:mi>p</f:mi><f:mn>5</f:mn></f:msup><f:mo>)</f:mo></f:mrow><f:mrow><f:mn>3</f:mn><f:mo>/</f:mo><f:mn>2</f:mn></f:mrow></f:msub><f:mspace width=\"0.16em\"/><f:mn>3</f:mn><f:msub><f:mi>d</f:mi><f:mrow><f:mn>5</f:mn><f:mo>/</f:mo><f:mn>2</f:mn></f:mrow></f:msub><f:mo>]</f:mo></f:mrow><f:mrow><f:mi>J</f:mi><f:mo>=</f:mo><f:mn>1</f:mn></f:mrow></f:msub></f:mrow></f:math>, respectively dubbed <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\"><h:mrow><h:mn>3</h:mn><h:mi>C</h:mi></h:mrow></h:math> and <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\"><i:mrow><i:mn>3</i:mn><i:mi>D</i:mi></i:mrow></i:math>, achieving a resolving power of 15 000 and signal-to-background ratio of 30. We obtain their natural linewidths, with an accuracy of better than 10%, as well as the oscillator-strength ratio <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\"><j:mrow><j:mi>f</j:mi><j:mo>(</j:mo><j:mn>3</j:mn><j:mi>C</j:mi><j:mo>)</j:mo><j:mo>/</j:mo><j:mi>f</j:mi><j:mo>(</j:mo><j:mn>3</j:mn><j:mi>D</j:mi><j:mo>)</j:mo><j:mo>=</j:mo><j:mn>2.51</j:mn><j:mo>(</j:mo><j:mn>11</j:mn><j:mo>)</j:mo></j:mrow></j:math> from analysis of the resonant fluorescence spectra. These results agree with those of previous experiments, earlier predictions, and our own advanced calculations.</jats:p>\n <jats:sec>\n <jats:title/>\n <jats:supplementary-material>\n <jats:permissions>\n <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\n <jats:copyright-year>2024</jats:copyright-year>\n </jats:permissions>\n </jats:supplementary-material>\n </jats:sec>","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Review a","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1103/physreva.109.063108","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
We used the monochromatic soft-x-ray beamline P04 at the synchrotron-radiation facility PETRA III to resonantly excite the strongest 2p−3d transitions in neonlike Ni ions, [2p6]J=0→[(2p5)1/23d3/2]J=1 and [2p6]J=0→[(2p5)3/23d5/2]J=1, respectively dubbed 3C and 3D, achieving a resolving power of 15 000 and signal-to-background ratio of 30. We obtain their natural linewidths, with an accuracy of better than 10%, as well as the oscillator-strength ratio f(3C)/f(3D)=2.51(11) from analysis of the resonant fluorescence spectra. These results agree with those of previous experiments, earlier predictions, and our own advanced calculations.Published by the American Physical Society2024
期刊介绍：
Physical Review A (PRA) publishes important developments in the rapidly evolving areas of atomic, molecular, and optical (AMO) physics, quantum information, and related fundamental concepts.
PRA covers atomic, molecular, and optical physics, foundations of quantum mechanics, and quantum information, including:
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-Matter waves and collective properties of cold atoms and molecules
-Quantum optics, physics of lasers, nonlinear optics, and classical optics
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