Optics and Spectroscopy

, Volume 119, Issue 2, pp 216–220 | Cite as

Nonlinear optical absorption in crystals with deep impurities: II. Band–impurity phototransitions involving free electrons

  • E. Yu. Perlin
  • R. S. Levitskii
  • A. V. Ivanov
  • K. A. Eliseev
Condensed-Matter Spectroscopy

Abstract

We propose a new mechanism for transitions of electrons from deep impurity levels to the conduction band under the action of light with photon energy Et smaller than ionization energy Et of the impurity center. Energy deficiency δ = Etω is covered by the kinetic energy of free electrons in the conduction band.

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • E. Yu. Perlin
    • 1
  • R. S. Levitskii
    • 1
  • A. V. Ivanov
    • 1
  • K. A. Eliseev
    • 1
  1. 1.ITMO UniversitySt. PetersburgRussia

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