PUBLICATIONS

References and Links to Papers

Publications: Publications

Available on ArXiv - 27 Jan 2022

MACROSCOPIC QUANTUM COHERENCE

InAs quantum dots are grown in a thin layer of AlAs/GaAs barrier like raisins between two slices of bread. Due to applied bias and photoexcitations, a 2D electron gas is only formed above the barrier layer on one side. Electrons from 2D electron gas form indirect excitons with the holes of quantum dots. This paper presents different experimental results and argues how these 0D-2D indirect excitons can form a macroscopic coherent state of Bose-Einstein condensation.

Published in Review of scientific instrument - 28 Sept 2021

EXPERIMENTATION: SPATIO-TEMPORAL COHERENCE MEASUREMENT SETUP

New quasi-particles like Exciton, polaritons etc. are able to achieve Bose-Einstein Condensation due to their low effective mass. These coherent states are investigated optically using interferometers for long-range spatial coherence and high temporal coherence. In this paper, we presented a modified interferometer to measure both coherence in a single setup. We overcame the issue of coherence mixing by using a 'filter' method. And we presented 'curve overlap' method to join data of fine and coarse instruments.

Published in IOP, Journal of Physics D - 28 Dec 2018

QUANTUM DOT DIODE: LOW TEMPERATURE ELECTROLUMINESCE SPECTRAL AND COHERENCE STUDY

Quantum dot light emitting diode is subject of great interest due to its application in display devices. Studying the light emission from these dots reveals the intriguing underlying many-body physics. In this paper, we investigated the electroluminescence of III-V quantum dot-well structure with varying bias current and temperature. The spectral and coherence result shows the impact of 'interface barrier' between dot and well, stark effect, thermal carrier dynamics, Auger recombination and more.