Calculation of the 1s-2s two-photon excitation cross-section in atomic hydrogen

Çelik G., Çelik E., KILIÇ H. Ş.

European Physical Journal D, cilt.50, sa.3, ss.237-240, 2008 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 50 Sayı: 3
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1140/epjd/e2008-00233-9
  • Dergi Adı: European Physical Journal D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.237-240
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

The two-photon excitation cross-section of atomic hydrogen is calculated using explicit summation over intermediate states within the framework of dipole approximation. The matrix element for two-photon excitation is transformed into finite sums, consisting of the product of a radial and angular part. Nine intermediate states are employed in the calculation of the transition matrix element. The two-photon excitation cross-section obtained for the transition 1s 2S1/2-2s 2S1/2in atomic hydrogen is a good agreement with the literature. © 2008 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.