2017年4月
Excitation enhancement in electric multipole transitions near a nanoedge
OPTICS EXPRESS
- ,
- ,
- 巻
- 25
- 号
- 8
- 開始ページ
- 9476
- 終了ページ
- 9489
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1364/OE.25.009476
- 出版者・発行元
- OPTICAL SOC AMER
We investigate enhancement of electric multipole excitations of atoms in the vicinity of an object with a nanoscale edge resulted from a large electromagnetic field gradient. We calculate the excitation efficiencies of a Rb atom around a nanoedge and find the excitations are enhanced by several orders of magnitude. The efficiencies with the change in the magnetic quantum number resolved are also examined. Each resolved efficiency shows rotationally symmetric spatial distribution, with continuous modification in shape from the far field to the near field. Furthermore, we estimate photon emission rates accompanied with multipole excitations in alkali (Rb and Cs) atoms and discuss the possibility to observe the enhancement in the multipole excitation in cold atoms. (C) 2017 Optical Society of America
- リンク情報
- ID情報
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- DOI : 10.1364/OE.25.009476
- ISSN : 1094-4087
- Web of Science ID : WOS:000400665200116