https://doi.org/10.1140/epjb/s10051-022-00293-1
Regular Article - Mesoscopic and Nanoscale Systems
Analyzing group index of impurity doped quantum dots under the superintendence of Gaussian white noise
1
Department of Chemistry, Physical Chemistry Section, Visva Bharati University, Birbhum, 731 235, Santiniketan, West Bengal, India
2
Department of Chemistry, Abhedananda Mahavidyalaya, Birbhum, 731234, Sainthia, West Bengal, India
d pcmg77@gmail.com, manasghosh.chem@visva-bharati.ac.in
Received:
27
September
2021
Accepted:
26
January
2022
Published online:
7
February
2022
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 parameters are varied over a range and corresponding variations of GI profiles are meticulously scrutinized. The study reveals that the presence/absence of noise, mode of application of noise (additive/multiplicative) and the particular physical parameter concerned, together, design the GI profiles in diverse ways. The role of noise is manifested principally by the nature of the GI peak shift (blue/red) and by the change in the signs of GI peaks (+ve/−ve) in different regimes of the physical quantity (low value/high value). The study describes the subtle interplay between the physical quantities and noise and indicates a good number of prolific ways for efficiently decreasing the speed of light. Such slowing down of the speed of light bears unquestionable importance in the field of nanoelectronics and optoelectronics.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022
