Linear and nonlinear phonon-assisted cyclotron resonances in parabolic quantum well under the applied electric field

Phuc, Huynh V.; Tung, Luong V.

doi:10.1016/j.spmi.2014.03.022

Cited by 29 publications

(5 citation statements)

References 42 publications

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“…The blue-shift behavior of the absorption spectrum associated with the increase of magnetic field is observed. This result is in good agreement with previous results [34,35]. This is because that when the magnetic field increases, the Landau level separation becomes larger.…”

Section: Quantitiessupporting

confidence: 93%

Nonlinear optical absorption via two-photon process in asymmetrical Gaussian potential quantum wells

Phuc

Tung

Vinh

et al. 2015

Superlattices and Microstructures

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Section: Quantitiessupporting

confidence: 93%

Nonlinear optical absorption via two-photon process in asymmetrical Gaussian potential quantum wells

Phuc

Tung

Vinh

et al. 2015

Superlattices and Microstructures

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“…Such an asymmetry in the potential profile can be achieved by applying an electric field to a symmetric quantum well (QW) or by compositionally grading QW. It is well known that there are different shaped QWs [3,4], such as square QWs [5][6][7][8], parabolic QWs [9,10], semiparabolic QWs [11,12], graded QWs [13,14], and V-shaped and inverse V-shaped QWs [15]. One of these structures is called the inverse parabolic quantum well (IPQW); an IPQW was fabricated experimentally by Chen et al [16].…”

Section: Introductionmentioning

confidence: 99%

Linear and nonlinear optical properties of asymmetric triple quantum wells under intense laser field

Ozturk¹,

Öztürk²,

Elagöz³

2019

Laser Phys.

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For asymmetric triple quantum wells (ATQW) the linear and nonlinear optical absorption coefficient (OAC) and the optical refractive index change (ORIC) are analyzed according to the intense laser field (ILF). The obtained results show that the ILF parameter (α 0 ) has an important effect on the shape and height of the confined potential profile of the ATQW, and alterations in the energy levels and the dipole moment matrix elements depend on the shape of the confinement potential. For α 0 = 10 nm (according to the parameters used in this study), ATQW turns into an asymmetric wider double confinement potential. As a consequence of the energy difference between the energy states, the absorption spectrum of (1-2) and (1-3) optical transitions initially shows a redshift (up to α 0 = 6 nm and α 0 = 4 nm, respectively) and then indicates a blueshift by increasing the ILF. For the (2-3) transition, the optical absorption spectrum continuously shows a blueshift and displays an oncoming shift toward the higher energies. Thus, the linear and nonlinear OAC and ORIC may be adjusted by modifying the ILF parameter. Our results are of use in the investigation into new ways of manipulating the optoelectronic properties of triple quantum well devices. Highlights• The electronic and optical properties of ATQW vary with increasing ILF value.• The effect of ILF on the quantum well (QW) differs depending on the shape of the QW.• OAC and ORIC change with rising ILF.• The absorption spectrum shows blueshifts or redshifts depending on the ILF.

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“…This kind of an asymmetry in potential shape may be acquired either by regularly grading quantum wells (QWs) or applying an electric field to a symmetric QW. The different shaped QWs [3][4][5][6], such as square QWs [7][8][9][10], V-shaped [6] and inverse V-shaped QWs [11] are well known. By altering QW potential shape, both the energy levels (ELs) and their wave-function modify, and numerous physical characteristics modify suitably.…”

Section: Introductionmentioning

confidence: 99%

The effect of intense laser field on the nonlinear optical features in asymmetric multiple step and inverse V-shaped multiple step quantum wells

2019

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For asymmetric multiple step quantum wells (AMS QWs) and asymmetric inverse V-shaped multiple step quantum wells (AIVSMS QWs), the nonlinear optical features, such as the nonlinear optical rectification (NOR), the second harmonic generation (SHG) and the third harmonic generation (THG) coefficients are analyzed as according on the intense laser field (ILF). The found consequences indicate that the ILF parameter confirms a vital influence on the shape and height of the confined potential profile of both AMS QWs and AIVSMS QWs, and the alterations of the dipole moment matrix elements and the energy levels are adhered on the profile of the confined potential. According to the results, the potential profile and height of the AIVSMS QWs compared to AMS QWs were affected differently from ILF intensity. These results indicate that NOR, SHG, and THG coefficient of AMS QWs and AIVSMS QWs may be regulated in a preferred energy range and the magnitude of the resonance peak (RP) by tuning the ILF parameter. By varying the ILF parameter, it is feasible to classify blue or red shifts in RP locations of NOR, SHG and THG coefficients. Our results can be valuable in investigating new ways of manipulating the opto-electronic properties of semiconductor QW devices. Highlights•The electro-optical properties of AMS QWs and AIVSMS QWs vary by increasing ILF.•The change of AIVSMS QWs compared to AMS QWs is more affected by ILF.•NOR, SHG, and THG coefficients change with rising ILF.•RP spectrums show blue or red shifts as according to ILF.

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Linear and nonlinear phonon-assisted cyclotron resonances in parabolic quantum well under the applied electric field

Cited by 29 publications

References 42 publications

Nonlinear optical absorption via two-photon process in asymmetrical Gaussian potential quantum wells

Nonlinear optical absorption via two-photon process in asymmetrical Gaussian potential quantum wells

Linear and nonlinear optical properties of asymmetric triple quantum wells under intense laser field

The effect of intense laser field on the nonlinear optical features in asymmetric multiple step and inverse V-shaped multiple step quantum wells

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