ON THE LASER-INDUCED MODIFICATION OF THE ENERGY-BAND STRUCTURE

We present a general method for the calculation of the energy band str ucture for a one-dimensional Kronig-Penney potential in the presence o f a strong laser field. Numerical illustrations show that the energy b and structure is strongly modified by the intense radiation field. In particular, it is also shown that the laser field creates new laser-in duced forbidden gaps, widths of which increase with increasing intensi ty of radiation