具有高光子通量发射功能的商用单光子源的计量特性分析

IF 2.1 3区工程技术 Q2 INSTRUMENTS & INSTRUMENTATION

Metrologia Pub Date : 2024-07-10 DOI:10.1088/1681-7575/ad615e

H. Georgieva, Petr Stepanov, Leonora Sewidan, Anton Pishchagin, Marco A Lopez, Stefan Kueck

{"title":"具有高光子通量发射功能的商用单光子源的计量特性分析","authors":"H. Georgieva, Petr Stepanov, Leonora Sewidan, Anton Pishchagin, Marco A Lopez, Stefan Kueck","doi":"10.1088/1681-7575/ad615e","DOIUrl":null,"url":null,"abstract":"\n We present a comprehensive metrological characterization of a commercial single-photon source with high photon flux emission for use in radiometry. The source is based on an InGaAs quantum dot in a micropillar. A comparative analysis of two excitation schemes - phonon-assisted excitation and two-photon excitation – explores differences in excitation power dependence, temporal stability and single-photon purity. The commercial source exhibits excellent properties for the field of quantum radiometry, achieving simultaneously a photon flux of (17.19 ± 0.09) million photons/s for a pulse repetition rate of 79.4 MHz, and a single-photon purity of 98 %. Its optical power of (3.68 ± 0.02) pW is directly determined with a traceably calibrated low-noise photodiode. The ability to directly compare the photocurrent in a low-noise photodiode with the count rate at a single-photon avalanche detector allows for a seamless transition between the classical and quantum realizations of optical power. Therefore, we were able to build another bridge between classical and quantum radiometry by using a deterministic single-photon source.","PeriodicalId":18444,"journal":{"name":"Metrologia","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Metrological characterization of a commercial single-photon source with high photon flux emission\",\"authors\":\"H. Georgieva, Petr Stepanov, Leonora Sewidan, Anton Pishchagin, Marco A Lopez, Stefan Kueck\",\"doi\":\"10.1088/1681-7575/ad615e\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n We present a comprehensive metrological characterization of a commercial single-photon source with high photon flux emission for use in radiometry. The source is based on an InGaAs quantum dot in a micropillar. A comparative analysis of two excitation schemes - phonon-assisted excitation and two-photon excitation – explores differences in excitation power dependence, temporal stability and single-photon purity. The commercial source exhibits excellent properties for the field of quantum radiometry, achieving simultaneously a photon flux of (17.19 ± 0.09) million photons/s for a pulse repetition rate of 79.4 MHz, and a single-photon purity of 98 %. Its optical power of (3.68 ± 0.02) pW is directly determined with a traceably calibrated low-noise photodiode. The ability to directly compare the photocurrent in a low-noise photodiode with the count rate at a single-photon avalanche detector allows for a seamless transition between the classical and quantum realizations of optical power. Therefore, we were able to build another bridge between classical and quantum radiometry by using a deterministic single-photon source.\",\"PeriodicalId\":18444,\"journal\":{\"name\":\"Metrologia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metrologia\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1088/1681-7575/ad615e\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metrologia","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1088/1681-7575/ad615e","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}

引用次数: 0

摘要

我们介绍了用于辐射测量的高光通量发射商用单光子源的全面计量特性。该光源基于微柱中的 InGaAs 量子点。对两种激发方案（声子辅助激发和双光子激发）进行了比较分析，探讨了激发功率依赖性、时间稳定性和单光子纯度方面的差异。该商用光源在量子辐射测量领域表现出卓越的性能，在脉冲重复率为 79.4 MHz 时，光子通量同时达到 (17.19 ± 0.09) 百万光子/秒，单光子纯度达到 98%。它的光功率为 (3.68 ± 0.02) pW，可通过可追溯校准的低噪声光电二极管直接测定。将低噪声光电二极管中的光电流与单光子雪崩探测器的计数率进行直接比较，可以实现经典光功率与量子光功率之间的无缝转换。因此，通过使用确定性单光子源，我们能够在经典和量子辐射测量之间架起另一座桥梁。

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

Metrological characterization of a commercial single-photon source with high photon flux emission

We present a comprehensive metrological characterization of a commercial single-photon source with high photon flux emission for use in radiometry. The source is based on an InGaAs quantum dot in a micropillar. A comparative analysis of two excitation schemes - phonon-assisted excitation and two-photon excitation – explores differences in excitation power dependence, temporal stability and single-photon purity. The commercial source exhibits excellent properties for the field of quantum radiometry, achieving simultaneously a photon flux of (17.19 ± 0.09) million photons/s for a pulse repetition rate of 79.4 MHz, and a single-photon purity of 98 %. Its optical power of (3.68 ± 0.02) pW is directly determined with a traceably calibrated low-noise photodiode. The ability to directly compare the photocurrent in a low-noise photodiode with the count rate at a single-photon avalanche detector allows for a seamless transition between the classical and quantum realizations of optical power. Therefore, we were able to build another bridge between classical and quantum radiometry by using a deterministic single-photon source.

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

Metrologia 工程技术-物理：应用

CiteScore

2.80

自引率

25.00%

发文量

137

审稿时长

12 months

期刊介绍： Published 6 times per year, Metrologia covers the fundamentals of measurements, particularly those dealing with the seven base units of the International System of Units (metre, kilogram, second, ampere, kelvin, candela, mole) or proposals to replace them. The journal also publishes papers that contribute to the solution of difficult measurement problems and improve the accuracy of derived units and constants that are of fundamental importance to physics. In addition to regular papers, the journal publishes review articles, issues devoted to single topics of timely interest and occasional conference proceedings. Letters to the Editor and Short Communications (generally three pages or less) are also considered.