Impurity related optical properties in tuned quantum dot/ring systems

S Pal, M Ghosh, CA Duque - Philosophical Magazine, 2019 - Taylor & Francis
In this paper, we explore the linear, third-order nonlinear, and total optical absorption
coefficient (OAC) and refractive index change coefficient (RICC) of a GaAs doped quantum …

Nanotechnology: The new features

G Wang - arXiv preprint arXiv:1812.04939, 2018 - arxiv.org
Nanotechnologies are attracting increasing investments from both governments and
industries around the world, which offers great opportunities to explore the new emerging …

Analyzing group index of impurity doped quantum dots under the superintendence of Gaussian white noise

SM Arif, A Bera, D Roy, M Ghosh - The European Physical Journal B, 2022 - Springer
Present enquiry explores the group index (GI) of quantum dot (QD) doped with impurity
under the aegis of applied Gaussian white noise. In this context various important physical …

Influence of Gaussian white noise on the frequency-dependent linear polarizability of doped quantum dot

J Ganguly, M Ghosh - Chemical Physics, 2014 - Elsevier
We investigate the profiles of diagonal components of frequency-dependent linear (α xx and
α yy) optical response of repulsive impurity doped quantum dots. The dopant impurity …

Modulation of electrical and optical properties of quantum dot by noise-anharmonicity interplay

D Roy, SM Arif, M Ghosh - Brazilian Journal of Physics, 2022 - Springer
Present study carries out an in-depth inspection of modulating a few important electrical and
optical properties of quantum dots (QDs) by exploiting Gaussian noise-anharmonicity …

Oscillatory impurity potential induced dynamics of doped quantum dots: Analysis based on coupled influence of impurity coordinate and impurity influenced domain

NK Datta, M Ghosh - Chemical Physics, 2010 - Elsevier
We explore the pattern of time evolution of eigenstates of a repulsive impurity doped
quantum dot. The quantum dot is 2-dimensional and contains one electron which is …

Profiles of Optical Gain of Impurity‐Doped Quantum Dots under the Stewardship of Gaussian White Noise

SM Arif, D Roy, A Bera, M Ghosh - physica status solidi (b), 2022 - Wiley Online Library
The optical gain (OG) of quantum dots containing impurity is dealt with in the present
investigation under the governance of applied Gaussian white noise. In this regard, various …

Influence of Noise–Anharmonicity Interplay on a Few Physical Properties of Quantum Dots

SM Arif, D Roy, M Ghosh - physica status solidi (b), 2022 - Wiley Online Library
Herein, a meticulous inspection of the tuning of a few important physical properties of
quantum dots (QDs), arising out of the subtle interplay between Gaussian white noise …

Influence of Gaussian white noise on the frequency-dependent first nonlinear polarizability of doped quantum dot

J Ganguly, M Ghosh - Journal of Applied Physics, 2014 - pubs.aip.org
We investigate the profiles of diagonal components of frequency-dependent first nonlinear
(⁠ β xxx and β yyy⁠) optical response of repulsive impurity doped quantum dots. We have …

Excitations in doped quantum dot induced by randomly fluctuating magnetic field: influence of impurity

NK Datta, M Ghosh - The European Physical Journal B, 2011 - Springer
We explore the excitation profile of a repulsive impurity doped quantum dot under randomly
fluctuating magnetic field. We have considered Gaussian impurity centers. The investigation …