Laser assist quantum dot scattering with Gaussian potential

Abstract

Laser-assisted quantum dot (QD) scattering with a Gaussian potential explores the interaction of QDs with incident laser fields, influencing their scattering dynamics with several parameters. It has wide applications in quantum computing, nanophotonics, optoelectronics, precise quantum state manipulation, biosensing, medical imaging, and photovoltaics, where laser control enhances QD performance for improved efficiency and sensitivity. This study investigates the differential cross-section (DCS) in laser field with QD (dressed gaussian potential) and field free electron. This is theoretical work, to developed new model of DCS for considered system, Kroll-Watson approximation, Volko wave functions and S-matrix and T-matrix are used as theoretical tools. After the development of model different parameters are used like incidence energies (0 to 5 eV), scattering angles (0 to 60°), QDsizes (0 to 10 Å), and laser-dressed parameters (0 to 40 Å) to study the nature of DCS, for validation of parameter's authors used secondary data from published work. The nature of developed equation was computed using MATLAB online student package. The observation shows that the DCS decrease with increasing in incident energy of electron and scattering angle while increase with QDs size as well as laser-dressed parameters. Also, the observation shows DCS for zero-order Bessel function is higher DCS than other higher order Bessel function. Additionally, the observation also shows DCS for elliptical polarization found higher than linear polarization. This shows DCS is effects by different parameters as well as assumption consider in this study. This means the system also goes effect when such QD is used in applied field as mention above. So, it is necessary to study the DCS of QD under various condition.