The effect of intense laser field on the photoionization cross-section and binding energy of shallow donor impurities in graded quantum-well wire under an electric field

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Kasapoglu E. , Sari H. , Yesilgul U., Sokmen I.

JOURNAL OF PHYSICS-CONDENSED MATTER, cilt.18, sa.27, ss.6263-6271, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Konu: 27
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1088/0953-8984/18/27/009
  • Sayfa Sayıları: ss.6263-6271


The laser-field dependence of the impurity binding energy and donor-related photoionization cross-section in graded quantum-well wire under an external static electric field is calculated by a variational method and in the effective mass approximation. We have shown that, in the graded quantum-well wire structures, not only the 'dressed' potential but also the applied direction of the external electric field plays a very important role in the determination of the binding energy.