Title:Noise-Induced Total Optical Absorption Coefficient and Refractive Index Change of Impurity Doped Quantum Dots Under Simultaneous Influence of Hydrostatic Pressure and Temperature
VOLUME: 7 ISSUE: 3
Author(s):Aindrila Bera and Manas Ghosh*
Affiliation:Department of Chemistry, Physical Chemistry Section, Visva Bharati University, Santiniketan, Birbhum 731235, West Bengal, Department of Chemistry, Physical Chemistry Section, Visva Bharati University, Santiniketan, Birbhum 731235, West Bengal
Keywords:Quantum dot, absorption coefficient, refractive index change, hydrostatic pressure,
temperature, gaussian white noise.
Abstract:Aims: Present study explores two important nonlinear optical (NLO) properties of impurity
doped quantum dots (QDs) under the purview of hydrostatic pressure (HP) and temperature.
Method: The NLO properties are the total optical absorption coefficient (TOAC) and the total
optical refractive index change (TRIC). Simultaneously, the role of Gaussian white noise on these
optical properties has also been minutely examined. A change in HP and temperature affects the
above NLO properties reflected through alteration of peak height and peak position.
Objective: Under a given temperature and HP, the magnitude of above NLO properties has
been found to be severely depleted in the presence of noise and the extent of depletion
prominently depends on the mode through which noise is applied to the system.
Result: The study highlights important interplay between HP, temperature and noise
(obviously taking care of its mode of application) that finally governs the profiles of TOAC
and TRIC of doped QD systems.
