金纳米隙阵列上的电荷耗尽增强型 WSe2 量子发射器具有近乎统一的量子效率

IF 32.3 1区物理与天体物理 Q1 OPTICS

Nature Photonics Pub Date : 2024-06-17 DOI:10.1038/s41566-024-01460-9

Hongbing Cai, Abdullah Rasmita, Ruihua He, Zhaowei Zhang, Qinghai Tan, Disheng Chen, Naizhou Wang, Zhao Mu, John J. H. Eng, Yongzhi She, Nan Pan, Qian Wang, Zhaogang Dong, Xiaoping Wang, Juan Wang, Yansong Miao, Ranjan Singh, Cheng-Wei Qiu, Xiaogang Liu, Weibo Gao

{"title":"金纳米隙阵列上的电荷耗尽增强型 WSe2 量子发射器具有近乎统一的量子效率","authors":"Hongbing Cai, Abdullah Rasmita, Ruihua He, Zhaowei Zhang, Qinghai Tan, Disheng Chen, Naizhou Wang, Zhao Mu, John J. H. Eng, Yongzhi She, Nan Pan, Qian Wang, Zhaogang Dong, Xiaoping Wang, Juan Wang, Yansong Miao, Ranjan Singh, Cheng-Wei Qiu, Xiaogang Liu, Weibo Gao","doi":"10.1038/s41566-024-01460-9","DOIUrl":null,"url":null,"abstract":"Achieving unity quantum efficiency in single-photon emitters (SPEs) is a holy grail in quantum information science. Through plasmonic coupling it is possible to increase the quantum efficiency of SPEs by increasing the radiative decay rate, but to approach unity quantum efficiency, non-radiative decay must be mitigated. Here we show that non-radiative decay in two-dimensional WSe2 quantum emitters can be electrically suppressed through charge depletion by using dual gate configurations under a large electric field. In this condition, for site-controlled SPEs in WSe2 coupled to gold nanogaps, the SPE transition quantum efficiency after gating is increased to 76.4 ± 14.6% on average, with some SPEs reaching near-unity (more than 90%) quantum efficiency. This study provides a new approach for tuning SPEs with an applied gate voltage and motivates further theoretical and experimental studies of SPE enhancement on vertically aligned nanogaps. Non-radiative decay in two-dimensional WSe2 quantum emitters is electrically suppressed through charge depletion using dual gate configurations. The single-photon emitter transition quantum efficiency after gating is increased to 76.4 ± 14.6% on average.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"18 8","pages":"842-847"},"PeriodicalIF":32.3000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Charge-depletion-enhanced WSe2 quantum emitters on gold nanogap arrays with near-unity quantum efficiency\",\"authors\":\"Hongbing Cai, Abdullah Rasmita, Ruihua He, Zhaowei Zhang, Qinghai Tan, Disheng Chen, Naizhou Wang, Zhao Mu, John J. H. Eng, Yongzhi She, Nan Pan, Qian Wang, Zhaogang Dong, Xiaoping Wang, Juan Wang, Yansong Miao, Ranjan Singh, Cheng-Wei Qiu, Xiaogang Liu, Weibo Gao\",\"doi\":\"10.1038/s41566-024-01460-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Achieving unity quantum efficiency in single-photon emitters (SPEs) is a holy grail in quantum information science. Through plasmonic coupling it is possible to increase the quantum efficiency of SPEs by increasing the radiative decay rate, but to approach unity quantum efficiency, non-radiative decay must be mitigated. Here we show that non-radiative decay in two-dimensional WSe2 quantum emitters can be electrically suppressed through charge depletion by using dual gate configurations under a large electric field. In this condition, for site-controlled SPEs in WSe2 coupled to gold nanogaps, the SPE transition quantum efficiency after gating is increased to 76.4 ± 14.6% on average, with some SPEs reaching near-unity (more than 90%) quantum efficiency. This study provides a new approach for tuning SPEs with an applied gate voltage and motivates further theoretical and experimental studies of SPE enhancement on vertically aligned nanogaps. Non-radiative decay in two-dimensional WSe2 quantum emitters is electrically suppressed through charge depletion using dual gate configurations. The single-photon emitter transition quantum efficiency after gating is increased to 76.4 ± 14.6% on average.\",\"PeriodicalId\":18926,\"journal\":{\"name\":\"Nature Photonics\",\"volume\":\"18 8\",\"pages\":\"842-847\"},\"PeriodicalIF\":32.3000,\"publicationDate\":\"2024-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Photonics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.nature.com/articles/s41566-024-01460-9\",\"RegionNum\":1,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Photonics","FirstCategoryId":"101","ListUrlMain":"https://www.nature.com/articles/s41566-024-01460-9","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

摘要

在单光子发射器（SPEs）中实现统一量子效率是量子信息科学的神圣目标。通过质子耦合，可以提高辐射衰变率，从而提高单光子发射器的量子效率，但要接近统一量子效率，必须减缓非辐射衰变。在这里，我们展示了二维 WSe2 量子发射器中的非辐射衰变可以在大电场下通过电荷耗尽来抑制。在这种条件下，对于与金纳米隙耦合的 WSe2 中的位点控制 SPE，门控后的 SPE 转换量子效率平均提高到 76.4 ± 14.6%，其中一些 SPE 的量子效率接近统一（超过 90%）。这项研究为利用外加栅极电压调节 SPE 提供了一种新方法，并推动了对垂直排列纳米隙上 SPE 增强的进一步理论和实验研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Charge-depletion-enhanced WSe2 quantum emitters on gold nanogap arrays with near-unity quantum efficiency

查看原文本刊更多论文

Charge-depletion-enhanced WSe2 quantum emitters on gold nanogap arrays with near-unity quantum efficiency

Achieving unity quantum efficiency in single-photon emitters (SPEs) is a holy grail in quantum information science. Through plasmonic coupling it is possible to increase the quantum efficiency of SPEs by increasing the radiative decay rate, but to approach unity quantum efficiency, non-radiative decay must be mitigated. Here we show that non-radiative decay in two-dimensional WSe2 quantum emitters can be electrically suppressed through charge depletion by using dual gate configurations under a large electric field. In this condition, for site-controlled SPEs in WSe2 coupled to gold nanogaps, the SPE transition quantum efficiency after gating is increased to 76.4 ± 14.6% on average, with some SPEs reaching near-unity (more than 90%) quantum efficiency. This study provides a new approach for tuning SPEs with an applied gate voltage and motivates further theoretical and experimental studies of SPE enhancement on vertically aligned nanogaps. Non-radiative decay in two-dimensional WSe2 quantum emitters is electrically suppressed through charge depletion using dual gate configurations. The single-photon emitter transition quantum efficiency after gating is increased to 76.4 ± 14.6% on average.

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

Nature Photonics 物理-光学

CiteScore

54.20

自引率

1.70%

发文量

158

审稿时长

12 months

期刊介绍： Nature Photonics is a monthly journal dedicated to the scientific study and application of light, known as Photonics. It publishes top-quality, peer-reviewed research across all areas of light generation, manipulation, and detection. The journal encompasses research into the fundamental properties of light and its interactions with matter, as well as the latest developments in optoelectronic devices and emerging photonics applications. Topics covered include lasers, LEDs, imaging, detectors, optoelectronic devices, quantum optics, biophotonics, optical data storage, spectroscopy, fiber optics, solar energy, displays, terahertz technology, nonlinear optics, plasmonics, nanophotonics, and X-rays. In addition to research papers and review articles summarizing scientific findings in optoelectronics, Nature Photonics also features News and Views pieces and research highlights. It uniquely includes articles on the business aspects of the industry, such as technology commercialization and market analysis, offering a comprehensive perspective on the field.