Bulk and surface plasmon modes in a superlattice of alternating layered electron gases

Deexcitation of dipole emitters in finite ordered charge-sheet structures

“…When the number of layers is sufficiently large [N = 50; see Fig. 2(d)], the dispersion relation becomes similar to the so-called bulk mode in the case of an infinite charge-sheet superlattice structure [15]. For comparison, we display the case of the bulk-mode-dispersion relation of the infinite charge-sheet system using the well-known dispersion [14], as is shown in Fig.…”

“…* ahatta@jazanu.edu.sa Meanwhile, the layered structure of the dielectric and charged sheets in superlattice forms has been shown to exhibit many interesting physical properties. In the past few decades, the properties of collective excitations in infinite and semiinfinite superlattices have been studied intensively [11][12][13][14][15]. The characteristics of bulk plasmons and surface plasmon modes in various structures have also been explored, including infinite and semi-infinite charge-sheet superlattices [15].…”

“…In the past few decades, the properties of collective excitations in infinite and semiinfinite superlattices have been studied intensively [11][12][13][14][15]. The characteristics of bulk plasmons and surface plasmon modes in various structures have also been explored, including infinite and semi-infinite charge-sheet superlattices [15]. The periodicity of an infinite superlattice permits the application of Bloch's theorem, which leads to considerable simplifications of the analysis.…”

Dynamical conductivity of type-I semiconductor superlattices

“…Propagation of various types of electromagnetic modes with and without including retardation effects in LEG and SL1 have been discussed by several authors for different wavevector regimes [6,8,[15][16][17][18]. Here we discuss only those electromagnetic modes which are given by zeros of ε L (q, q z , ω) and…”

“…Extensive theoretical, as well as experimental, investigations have been performed on collective excitations [1][2][3][4][5][6][7][8], light scattering and Coulomb scattering [9][10][11][12], optical properties [13], transport properties [14][15][16] and the electrodynamical properties [5,[15][16][17][18][19] of SLs. Electrodynamics deals with propagation of electric current and electromagnetic modes, induced potentials, dynamical screening effects, absorption, reflection, polarization, refraction and energy lost by fast-moving particles in a solid.…”