Effect of intense high-frequency laser field on the linear and nonlinear intersubband optical absorption coefficients and refractive index changes in a parabolic quantum well under the applied electric field

Yesilgül, U.; Ungan, F.; Şakiroğlu, S.; Mora-Ramos, M.E.; Duque, C.A.; Kasapoğlu, E.; Sarı, H.; Sökmen, I.

doi:10.1016/j.jlumin.2013.07.062

Cited by 66 publications

(19 citation statements)

References 29 publications

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“…6, compared the absorption transitions 1e-QD with 2e-QD, the absorption transitions of 2e-QD are stronger than those of one-electron, especially in S-P fundamental transition. Similar results are reported by the author [35] for only S-P transitions.…”

Section: Resultssupporting

confidence: 90%

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

Çakır

Yakar

Özmen

2015

Physica B: Condensed Matter

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Section: Resultssupporting

confidence: 90%

“…Our result is in good agreement with Ref. [35]. We were unable to compare the other results since they are not in literature.…”

Section: Resultssupporting

confidence: 89%

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

Çakır

Yakar

Özmen

2015

Physica B: Condensed Matter

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“…2(c) as a function of electric field. We see that the peak amplitude of χ (2) 0 is a monotonic function of electric field and reduces considerably by F. Meanwhile, pronounced influence of electric field is clearer in the case of quantum well with higher asymmetry. Moreover, for sufficiently higher electric fields the peak maximums for all values of a approach to each other.…”

Section: Resultsmentioning

confidence: 75%

“…Over the last two decades, investigation of the characteristics of optical and electronic properties of semiconductor quantum wells (QWs), quantum wires, quantum dots and superlattices has become a fast-growing research area due to their potential applications in opto-and nanoelectronics [1][2][3][4]. In these structures, enhanced quantum confinement effects result in observation of unique nonlinear optical behavior very different from their bulk counterparts [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Electric-field-induced Nonlinear Optical Rectification, Second- and Third-harmonic Generation in Asymmetrical Quantum Well

Şakiroğlu

2017

SDÜ Fen Bil Enst Der

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Abstract:The effects of a static electric field on the nonlinear optical rectification, second-and third-harmonic generation in a quantum well described by Morse potential are theoretically investigated. Analytical expressions for the optical coefficients due to intersubband optical transitions with an applied electric field are extracted from the compact-density matrix approach and iterative scheme. Numerical results presented for a typical GaAs quantum well reveal the feasibility of control of optical transitions between the size-quantized subbands. In addition, we have to emphasize the fact that the optical response of the system is remarkably sensitive to the electric field and structural range parameter.

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“…[22][23][24][25][26][27][28][29][30][31][32][33][34] The linear and nonlinear optical absorption in different quantum well shapes have been investigated considerably because of the higher values of the dipole matrix elements and in the hope of obtaining the resonance conditions. The main reason for studying low-dimensional quantum wells is that their nonlinear properties can be strongly enhanced compared with bulk semiconductors, and this is due to the higher quantum confinement effects.…”

Section: Introductionmentioning

confidence: 99%

Linear and nonlinear optical absorption coefficients and refractive index changes in GaN/AlxGa(1−x)N double quantum wells operating at 1.55 μm

Dakhlaoui

2015

Journal of Applied Physics

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Articles you may be interested inInfluence of polarization induced electric fields on the wavelength and the refractive index of intersubband transitions in AlN/GaN coupled double quantum wells J. Appl. Phys. 105, 093109 (2009); 10.1063/1.3124373 Near-infrared two-color intersubband transitions in AlN/GaN coupled double quantum wells Refractive-index nonlinearities of intersubband transitions in GaN/AlN quantum-well waveguides J. Appl. Phys. Influence of applied electric fields on the absorption coefficient and subband energy distances of intersubband transitions in AlN/GaN coupled double quantum wells J. Appl. Phys.In the present paper, the linear and nonlinear optical absorption coefficients and refractive index changes between the ground and the first excited states in double GaN/Al x Ga (1Àx) N quantum wells are studied theoretically. The electronic energy levels and their corresponding wave functions are obtained by solving Schr€ odinger-Poisson equations self-consistently within the effective mass approximation. The obtained results show that the optical absorption coefficients and refractive index changes can be red-and blue-shifted through varying the left quantum well width and the aluminum concentration x b2 of the central barrier, respectively. These structural parameters are found to present optimum values for carrying out the transition of 0.8 eV (1.55 lm). Furthermore, we show that the desired transition can also be achieved by replacing the GaN in the left quantum well with Al y Ga (1Ày) N and by varying the aluminum concentration y Al . The obtained results give a new degree of freedom in optoelectronic device applications such as optical fiber telecommunications operating at (1.55 lm). V C 2015 AIP Publishing LLC. [http://dx.

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Effect of intense high-frequency laser field on the linear and nonlinear intersubband optical absorption coefficients and refractive index changes in a parabolic quantum well under the applied electric field

Cited by 66 publications

References 29 publications

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

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

Electric-field-induced Nonlinear Optical Rectification, Second- and Third-harmonic Generation in Asymmetrical Quantum Well

Linear and nonlinear optical absorption coefficients and refractive index changes in GaN/AlxGa(1−x)N double quantum wells operating at 1.55 μm

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