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Exploring Optical Dielectric Function of Impurity Doped Quantum Dots in Presence of Gaussian White Noise

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We investigate the total optical dielectric function (TODF) of impurity doped quantum dot (QD) in presence and absence of noise. Noise invoked is Gaussian white noise and the QD is doped with Gaussian impurity. Noise has been introduced to the system additively and multiplicatively. The TODF profiles have been monitored as a function of incident photon energy for different values of several important parameters. Moreover, the role of mode of application of noise (additive/multiplicative) on the TODF profiles has also been meticulously analyzed. We have found that the shift of TODF peak position and change in TODF peak height sensitively depend on presence/absence of noise and also on its mode of application. Introduction of multiplicative noise causes greater deviation of TODF profiles from that of noise-free condition than using additive noise.
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Keywords: GAUSSIAN WHITE NOISE; IMPURITY; NOISE STRENGTH; QUANTUM DOT; TOTAL OPTICAL DIELECTRIC FUNCTION

Document Type: Research Article

Publication date: March 1, 2017

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  • Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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