Abstract

In Ref. 1 the conduction and valence band renormalization in the presence of the fixed intensive coherent electromagnetic wave k̅ with frequency Ω > w_g resulting in the appearance of the electron spectra splitting 2λ_k̅ = 2A̅_k̅D̅₀ has been investigated. Here 2A̅_k̅ is the vector potential amplitude, and D̅₀ is the matrix element of the interband electron transition. The condition of the electron spectra renormalization observation is determined by the inequality 2λ_k̅ > γ = γ_c+ γ_v, where γ_c and γ_v are the inverse times of the electron scattering in the corresponding bands.

© 1990 Optical Society of America