Quantum Wire with Triangle Cross Section: Optical Properties

Abstract

In the present work, the optical properties of a GaAs quantum wire with equilateral triangle cross section are studied. For this purpose, we use analytical expressions for optical properties obtained by the compact-density matrix formalism. Here, we investigate the intersubband optical absorption coefficients and refractive index changes as a function of the triangle side (L) and the incident optical intensity (I). According to the obtained results, it is found that: (i) The total refractive index changes increase and shift towards lower energies when the triangle side increases. (ii) The total absorption coefficient decreases as the triangle side increases. Also, the resonance peak shifts towards lower energies by increasing the triangle side.

Impurity-related linear and nonlinear optical response in quantum-well wires with triangular cross section

“…was obtained by Khordad et al with the help of group theory [49,51]. The allowed energies are given by…”

“…Very recently, Khordad et al have published a number of research articles dealing with semiconducting QWWs of triangular-and parallelogram-shaped-cross section [49][50][51]. The exact eigenfunctions of a QWW with equilateral triangular cross section were presented in Ref.…”

“…The exact eigenfunctions of a QWW with equilateral triangular cross section were presented in Ref. [49] and used to obtain the nonlinear optical absorption response and the relative change in the refractive index in a GaAs-based structure. The generation of second and third harmonics in the same class of systems are the subject of study in Ref.…”

Rotating effects on the thermophysical properties of a two-dimensional GaAs quantum ring

“…Also, quantum rings have wide utilization in nano-flash memories [14], photonic devices [15], qubits for spintronic quantum computing [16,17], magnetic random access memory, recording mediums and other spintronic devices [18]. For more information, the readers can refer to [19][20][21][22][23][24][25].…”