Abstract
The possibility of coherent laser induced enhanced charge density acentricity in the layered single crystals of CdBr2 is demonstrated experimentally. The possible manipulation through non-centrosymmetry was achieved by introduction of the I ion dopants which perform some kind of intercalation. The effects show strong dependence on hydrostatic pressure and are detected by second order nonlinear optical effects as well as by piezoelectricity. The proposed method opens a new opportunity for formation charge density acentricity on the nano level. More important is that the corresponding technology is relatively cheap.
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