Modeling the optical response of monolayer molybenum disulfide in a cavity

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Abstract/Contents

Abstract
As semiconductor-based systems face heat dissipation and signal distribution issues, the focus has shifted to on-chip nano-photonics as a promising replacement. Unlike the traditional architectures, photonic resonators such as optical cavities are controlled by electromagnetic radiation instead of electrical voltage. The key challenge lies in generating a nonlinear input-output relationship. To this end, one popular solution is to couple the resonator to a saturable absorber. Here, we will focus on the prospect of using monolayer molybdenum disulfide (MoS2) as the saturable absorber, with the material placed inside a Fabry-Perot cavity at low temperature. The strength of the interaction between the excitons of monolayer MoS2 and the electromagnetic field is calculated by deriving the electronic band structure of the material and superposing transition amplitudes between valence and conduction band states. Unlike a multi-atom cavity, the interaction between different excitons has a significant effect on the input-output relationship of the cavity. We will show the theoretical model required to calculate the exciton-photon coupling coefficient and the exciton-exciton annihilation rate, eventually culminating in the use of a Lindblad-Hamiltonian formalism to derive the optical nonlinearity for the cavity-material system.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2019; ©2019
Publication date 2019; 2019
Issuance monographic
Language English

Creators/Contributors

Author Chatterjee, Eric
Degree supervisor Mabuchi, Hideo
Thesis advisor Mabuchi, Hideo
Thesis advisor Heinz, Tony F
Thesis advisor Lev, Benjamin
Degree committee member Heinz, Tony F
Degree committee member Lev, Benjamin
Associated with Stanford University, Department of Physics.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Eric Chatterjee.
Note Submitted to the Department of Physics.
Thesis Thesis Ph.D. Stanford University 2019.
Location electronic resource

Access conditions

Copyright
© 2019 by Eric Chatterjee
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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