Two-step photoionization of cold atoms by two-color evanescent-light waves and application to atom detection with high spatial resolution

Kazuhiro Yamamoto, Haruhiko Ito, Kouki Totsuka, Tomohiro Sato

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

We consider a new scheme of optically ionizing atoms with 10-nm-order spatial resolution. In this method, two-color near-field lights are generated on a narrow slit illuminated by two-color evanescent lights via total-internal reflection of two-wavelength light beams. In order to illustrate the feasibility, we first obtain the ionization cross section from two-step photionization of cold Rb atoms by two-color evanescent lights on a plane surface of a prism. Then, we numerically estimate the ionization efficiency as a function of the slit width using Bethe formula. The scheme is useful for detecting ground-state atoms under less perturbation by scattered light.

本文言語英語
ページ(範囲)692-695
ページ数4
ジャーナルOptics Communications
265
2
DOI
出版ステータス出版済み - 9 15 2006
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 物理化学および理論化学
  • 電子工学および電気工学

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