Abstract
AbstractTransverse electroreflectance measurements have been performed on CuCl single crystals in the region of the exciton bands. The observed changes of reflectivity can be separated into two components corresponding to a linear and a quadratic Stark effect of the excitons. The linear Stark effect is due to a splitting of the valence bands of CuCl, whereas in the case of the quadratic Stark effect the relative motion of the electron–hole pair is influenced by the electric field.
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