GaAs/AlGaAs量子阱中声表面波驱动载流子输运的数值分析

IF 1.1 4区物理与天体物理 Q4 NANOSCIENCE & NANOTECHNOLOGY

Journal of Nanophotonics Pub Date : 2023-07-01 DOI:10.1117/1.JNP.17.036010

Ziliang Pang, Weiwei Cao, Jinkun Zheng, YongLin Bai

{"title":"GaAs/AlGaAs量子阱中声表面波驱动载流子输运的数值分析","authors":"Ziliang Pang, Weiwei Cao, Jinkun Zheng, YongLin Bai","doi":"10.1117/1.JNP.17.036010","DOIUrl":null,"url":null,"abstract":"Abstract. Surface acoustic waves (SAWs) with a strong enough piezoelectric field can capture and transport electrons and holes. The presence of SAWs and their photo-generated carriers’ transport properties in the GaAs/AlGaAs quantum well (QW) is a potential scheme to achieve single photon sources and single photon detectors. We numerically solve the system of coupled Schrödinger and Poisson equations and the carriers’ radiative lifetime. A finite difference method of two-dimensional was developed as a conventional approach to the theoretical understanding of the presence in the QW through Python programs. The features of carriers’ radiative lifetime are discussed as functions of the SAW wavelengths and SAW amplitudes. The spatial separation and radiative lifetime extension of the electrons and holes in the SAW-driven QW was explained by the method.","PeriodicalId":16449,"journal":{"name":"Journal of Nanophotonics","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical analysis of surface acoustic wave driven carriers transport in GaAs/AlGaAs quantum well\",\"authors\":\"Ziliang Pang, Weiwei Cao, Jinkun Zheng, YongLin Bai\",\"doi\":\"10.1117/1.JNP.17.036010\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract. Surface acoustic waves (SAWs) with a strong enough piezoelectric field can capture and transport electrons and holes. The presence of SAWs and their photo-generated carriers’ transport properties in the GaAs/AlGaAs quantum well (QW) is a potential scheme to achieve single photon sources and single photon detectors. We numerically solve the system of coupled Schrödinger and Poisson equations and the carriers’ radiative lifetime. A finite difference method of two-dimensional was developed as a conventional approach to the theoretical understanding of the presence in the QW through Python programs. The features of carriers’ radiative lifetime are discussed as functions of the SAW wavelengths and SAW amplitudes. The spatial separation and radiative lifetime extension of the electrons and holes in the SAW-driven QW was explained by the method.\",\"PeriodicalId\":16449,\"journal\":{\"name\":\"Journal of Nanophotonics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2023-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Nanophotonics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1117/1.JNP.17.036010\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"NANOSCIENCE & NANOTECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nanophotonics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1117/1.JNP.17.036010","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"NANOSCIENCE & NANOTECHNOLOGY","Score":null,"Total":0}

引用次数: 0

摘要

摘要具有足够强的压电场的声表面波可以捕获和传输电子和空穴。GaAs/AlGaAs量子阱中SAW的存在及其光生载流子的输运特性是实现单光子源和单光子探测器的一种潜在方案。我们数值求解了耦合薛定谔和泊松方程组以及载流子的辐射寿命。开发了一种二维有限差分方法，作为通过Python程序从理论上理解QW中存在的传统方法。讨论了作为SAW波长和SAW振幅函数的载流子辐射寿命的特征。用该方法解释了声表面波驱动量子阱中电子和空穴的空间分离和辐射寿命的延长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Numerical analysis of surface acoustic wave driven carriers transport in GaAs/AlGaAs quantum well

Abstract. Surface acoustic waves (SAWs) with a strong enough piezoelectric field can capture and transport electrons and holes. The presence of SAWs and their photo-generated carriers’ transport properties in the GaAs/AlGaAs quantum well (QW) is a potential scheme to achieve single photon sources and single photon detectors. We numerically solve the system of coupled Schrödinger and Poisson equations and the carriers’ radiative lifetime. A finite difference method of two-dimensional was developed as a conventional approach to the theoretical understanding of the presence in the QW through Python programs. The features of carriers’ radiative lifetime are discussed as functions of the SAW wavelengths and SAW amplitudes. The spatial separation and radiative lifetime extension of the electrons and holes in the SAW-driven QW was explained by the method.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Nanophotonics 工程技术-光学

CiteScore

2.60

自引率

6.70%

发文量

审稿时长

3 months

期刊介绍： The Journal of Nanophotonics publishes peer-reviewed papers focusing on the fabrication and application of nanostructures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes.