書誌事項
- タイトル別名
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- VERIFICATION OF MICROWAVE SWEEPING METHODS FOR MEASUREMENT OF HYPERFINE STRUCTURE SPLITTING OF SLIVER ATOMS IN SUPERFLUID HELIUM
抄録
We have been developing a laser spectroscopy method for atoms introduced into superfluid helium (He II). We generate spin polarization by optical pumping of atoms and perform laser-radiofrequency and laser-microwave (MW) double resonance. This method enables us to determine the nuclear spins and electromagnetic moments through measurements of Zeeman splitting and hyperfine structure (HFS) splitting. Moreover, because HFS splitting energies in He II shift slightly from those in vacuum, we expect the phenomena lead us to study the interaction between He Ⅱ and atoms. We have so far successfully measured HFSs of alkali atoms such as stable ^85,87Rb and ^133Cs in He II. Currently, we are attempting to apply this method to group 11 atoms to investigate whether a similar difference appears in atoms other than alkalis. We are now trying to apply this technique to Ag atoms. In this study, we introduced a new pulsed laser with repetition of 20 kHz for optical pumping of Ag atoms and succeeded in obtaining laser-RF double resonance spectra. In addition, by obtaining a laser-MW double resonance spectrum using a Rb gas cell, we evaluated the accuracy and precision of MW frequencies when different MW sweep methods were used.
収録刊行物
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- 法政大学大学院紀要. 理工学研究科編
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法政大学大学院紀要. 理工学研究科編 63 1-5, 2022-03-24
法政大学大学院理工学研究科
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詳細情報 詳細情報について
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- CRID
- 1390855965512539904
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- HANDLE
- 10114/00025402
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- ISSN
- 24368083
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
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- 抄録ライセンスフラグ
- 使用可