This is monograph on the transporter contribution to elastic factors in quantum wells (QWs) and quantum well wires (QWWs) of nonlinear photosensitive compounds has been studied on the origin of a recently formulated electron energy band. The corresponding consequences for quantum narrowed ternary, III-V and quaternary types of optoelectronic materials form a different case of his generalized investigation. The transporter contribution to the elastic constants has also been calculated for QWs and QWWs of IV-VI and II-VI compounds. It has been originate, captivating QWWs and QWs of Hg1-xCdxTe,...