From fast light to slow light in resonantly driven quantum dot systems

Linear and nonlinear absorption coefficients of spherical two-electron quantum dot

“…QDs are known as artificial atoms because of having shell structures and discrete energy levels, and QDs play an important role in optoelectronic and microelectronic devices. Therefore, many authors have studied the binding energies, the effects of electric and magnetic field and other physical properties of oneelectron QD with various size and shapes [1][2][3][4][5][6]. In one-electron QDs, linear and nonlinear absorption coefficients have attracted the attention of researchers both experimentally and theoretically [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25], because QDs have the potential for the device applications such as farinfrared photodetectors, laser amplifiers(wavelength 10m), optical memories, light emitting diodes and high-speed electrooptical modulators [26][27][28].…”

Linear and nonlinear optical absorption coefficients of two-electron spherical quantum dot with parabolic potential

“…Confined quantum systems have been one of the most important subjects of investigation. Therefore, due to their fundamental properties and their wide range of technological applications [1], a great deal of theoretical works on these structures has been reported extensively by using different methods like a finite element method [2,3], perturbation [4], density functional [5,6], configuration interaction [7,8], variational [9,10], exact solution [11], quantum genetic algorithm and Hartree-Fock Roothaan method [12] and other methods [13,14]. Understanding of the electronic and optical properties in such structures is important because these properties are strongly affected by the presence of impurity.…”

Kerr nonlinearity due to intersubband transitions in a three-level InAs/GaAs quantum dot: the impact of a wetting layer on dispersion curves

“…A pair of vertically coupled QDs has been proposed as a quantum gate [10]. These structures are promising to realize electromagnetically induced transparency (EIT) and slow light as a result of quantum interference [11][12][13][14].…”