Extended eigenfunctions in asymmetric double triangular quantum wells in weak electric fields

Triangular quantum profiles: transmission probability and energy spectrum

“…The second term in Eq. (29) depends on the electric field strength linearly [17], so we expect that the obtained expressions for transmission coefficient and also the energy levels have additional terms including the electric field strength.…”

“…To study semiconductor heterostructures within theoretical and practical frameworks could give some clues that may be helpful to advance the semiconductor technology, such as the development of some optoelectronic and communication devices based on quantum mechanical tunneling, some visible lasers based on the electronic spectrum of double quantum wells [8], and quantum cascade lasers based on the electronic transition between levels of the conduction band [9]. Among the other quantum heterostructures, triangular quantum wells are also important systems since the absorption coefficient value is reduced in the experimental measurement of the electroabsorption when triangular quantum wells are used [10].…”

GaN/AlN constant total effective radius multi-wells quantum rings: Physical properties under well number variation effects

“…For example, applied magnetic [10] and electric fields [11], incident optical intensity [12] and different shapes of the quantum wells (e.g. hyperbolic [13], triangular [14], and delta-doped [15]) explored. Effects of the number of wells on absorption coefficient in different geometries such as: multiple quantum wells [16], cylindrical quantum dotquantum wells [17] and multi-wells quantum rings [18], have also been previously studied.…”

Second-order nonlinear optical susceptibilities in asymmetric coupled quantum wells

“…Some others have also studied the same effects in some asymmetric single quantum systems, such as in semi-parabolic quantum systems [4,13,15,17], in asymmetric step wells [1][2][3] and so on. However, only a few authors [6][7][8][18][19][20][21][22][23] have focused attention on researches into the nonlinear optical effects of asymmetric coupled quantum systems, and a systematic study of the second-order effects of optical nonlinearity in these systems is still lacking. So the research in this field is still important both theoretically and for practical applications.…”