Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/163164
Title: Dielectric distributed Bragg reflectors: towards strong light-matter interactions
Authors: Dyah Ayu Nurun Nafisah
Keywords: Science::Physics
Issue Date: 2022
Publisher: Nanyang Technological University
Source: Dyah Ayu Nurun Nafisah (2022). Dielectric distributed Bragg reflectors: towards strong light-matter interactions. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/163164
Abstract: In this report, we present the observations of strong exciton-polariton coupling in a semiconductor quantum microcavity structure. The first section will begin by introducing the mathematical tools used to generate the simulated theoretical transmission spectra via transfer matrix methods. The discussion will then be followed by the concepts of particle interactions which cover the notions of exciton and polariton in the microcavity. The section will be finished with the explanation on the structure and the frameworks of the semiconductor quantum microcavity as well as the principles of the techniques that were adopted in the experiments. The simulated transmission spectra reveal several parameters that can affect the stopband properties of the microcavity, such as refractive index contrast, a number of bi-layer pairs, the relative configuration between the top and the bottom DBRs, as well as the presence of additional layer in between the two DBRs. Experiments were done on both the empty microcavity and the microcavity involving the dielectric active region. While the experiment at room temperature did not succeed in observing the presence of strong exciton-polariton coupling, the experiment conducted at cryogenic temperature showed the presence of Rabi splitting in the energy dispersion which suggests the existence of strong coupling in the cavity structure. Upon the completion of this project, further study on the strong coupling will be conducted to uncover many other properties of the semiconductor quantum microcavity.
URI: https://hdl.handle.net/10356/163164
Schools: School of Physical and Mathematical Sciences 
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
Dielectric Distributed Bragg Reflectors towards strong light-matter interactions.pdf
  Restricted Access
5.33 MBAdobe PDFView/Open

Page view(s)

196
Updated on May 20, 2024

Download(s) 50

49
Updated on May 20, 2024

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.