Photon-Number-Resolving Transition-Edge Sensors for the Metrology of Photonic Microstructures based on Semiconductor Quantum Dots

被引：0

作者：

Schmidt, Marco ^{[1
,2
]}

von Helversen, Martin ^{[1
]}

Schlottmann, Elisabeth ^{[1
]}

Lopez, Marco ^{[3
]}

Gericke, Fabian ^{[1
]}

Schulze, Jan-Hindrik ^{[1
]}

Strittmatter, Andre ^{[1
]}

Schneider, Christian ^{[4
]}

Kueck, Stefan ^{[3
]}

Hoefling, Sven ^{[4
]}

Heindel, Tobias ^{[1
]}

Beyer, Joern ^{[2
]}

Reitzenstein, Stephan ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Festkorperphys, Hardenbergstr 36, D-10623 Berlin, Germany

[2] Phys Tech Bundesanstalt, Abbestr 2-12, D-10587 Berlin, Germany

[3] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany

[4] Univ Wurzburg, Tech Phys, D-97074 Wurzburg, Germany

来源：

ADVANCES IN PHOTONICS OF QUANTUM COMPUTING, MEMORY, AND COMMUNICATION XII | 2019年 / 10933卷

基金：

欧盟地平线“2020”; 欧洲研究理事会;

关键词：

Transition-edge sensors; SQUIDs; Quantum Metrology; Photon number resolution; Quantum Dot; Microlaser;

D O I：

10.1117/12.2514086

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Light sources for applications in quantum information, quantum-enhanced sensing and quantum metrology are attracting increasing scientific interest. To gain inside into the underlying physical processes of quantum light generation, efficient photon detectors and experimental techniques are required to access the photon statistics. In this work, we employ photon-number-resolving (PNR) detectors based on superconducting transition-edge sensors (TESs) for the metrology of photonic microstrctures with semiconductor quantum dots (QDs) as emitters. For the PNR analysis, we developed a state of the art PNR detection system based on fiber-coupled superconducting TESs. Our stand-alone system comprises six tungsten TESs, read out by six 2-stage-SQUID current sensors, and operated in a compact detector unit integrated into an adiabatic demagnetization refrigerator. This PNR detection system enables us to directly access the photon statistics of the light field emitted by our photonic microstructures. In this contribution, we focus on the PNR study of deterministically fabricated quantum light sources emitting single indistinguishable photons as well as twin-photon states. Additionally, we present a PNR-analysis of electrically pumped QD micropillar lasers exhibiting a peculiar bimodal behavior. Employing TESs our work provides direct insight into the complex emission characteristics of QD-based light sources. We anticipate, that TES-based PNR detectors, will be a viable tool for implementations of photonic quantum information processing relying on multi-photon states.

引用

页数：8

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