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Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots
The nonlinearity of semiconductor quantum dots under the condition of low light levels has many important applications. In this study, linear absorption, self-Kerr nonlinearity, fifth-order nonlinearity and cross-Kerr nonlinearity of multiple quantum dots, which are coupled by multiple tunneling, ar...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473951/ https://www.ncbi.nlm.nih.gov/pubmed/30871079 http://dx.doi.org/10.3390/nano9030423 |
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author | Tian, Si-Cong Lu, Huan-Yu Zhang, Hang Wang, Li-Jie Shu, Shi-Li Zhang, Xin Hou, Guan-Yu Wang, Zi-Ye Tong, Cun-Zhu Wang, Li-Jun |
author_facet | Tian, Si-Cong Lu, Huan-Yu Zhang, Hang Wang, Li-Jie Shu, Shi-Li Zhang, Xin Hou, Guan-Yu Wang, Zi-Ye Tong, Cun-Zhu Wang, Li-Jun |
author_sort | Tian, Si-Cong |
collection | PubMed |
description | The nonlinearity of semiconductor quantum dots under the condition of low light levels has many important applications. In this study, linear absorption, self-Kerr nonlinearity, fifth-order nonlinearity and cross-Kerr nonlinearity of multiple quantum dots, which are coupled by multiple tunneling, are investigated by using the probability amplitude method. It is found that the linear and nonlinear properties of multiple quantum dots can be modified by the tunneling intensity and energy splitting of the system. Most importantly, it is possible to realize enhanced self-Kerr nonlinearity, fifth-order nonlinearity and cross-Kerr nonlinearity with low linear absorption by choosing suitable parameters for the multiple quantum dots. These results have many potential applications in nonlinear optics and quantum information devices using semiconductor quantum dots. |
format | Online Article Text |
id | pubmed-6473951 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64739512019-05-03 Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots Tian, Si-Cong Lu, Huan-Yu Zhang, Hang Wang, Li-Jie Shu, Shi-Li Zhang, Xin Hou, Guan-Yu Wang, Zi-Ye Tong, Cun-Zhu Wang, Li-Jun Nanomaterials (Basel) Article The nonlinearity of semiconductor quantum dots under the condition of low light levels has many important applications. In this study, linear absorption, self-Kerr nonlinearity, fifth-order nonlinearity and cross-Kerr nonlinearity of multiple quantum dots, which are coupled by multiple tunneling, are investigated by using the probability amplitude method. It is found that the linear and nonlinear properties of multiple quantum dots can be modified by the tunneling intensity and energy splitting of the system. Most importantly, it is possible to realize enhanced self-Kerr nonlinearity, fifth-order nonlinearity and cross-Kerr nonlinearity with low linear absorption by choosing suitable parameters for the multiple quantum dots. These results have many potential applications in nonlinear optics and quantum information devices using semiconductor quantum dots. MDPI 2019-03-12 /pmc/articles/PMC6473951/ /pubmed/30871079 http://dx.doi.org/10.3390/nano9030423 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Tian, Si-Cong Lu, Huan-Yu Zhang, Hang Wang, Li-Jie Shu, Shi-Li Zhang, Xin Hou, Guan-Yu Wang, Zi-Ye Tong, Cun-Zhu Wang, Li-Jun Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots |
title | Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots |
title_full | Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots |
title_fullStr | Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots |
title_full_unstemmed | Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots |
title_short | Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots |
title_sort | enhancing third- and fifth-order nonlinearity via tunneling in multiple quantum dots |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473951/ https://www.ncbi.nlm.nih.gov/pubmed/30871079 http://dx.doi.org/10.3390/nano9030423 |
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