Ge-on-Si single-photon avalanche diode using a double mesa structure.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2024-11-15 DOI:10.1364/OL.534436

Maurice Wanitzek, Jörg Schulze, Michael Oehme

引用次数: 0

Abstract

We present experimental results of Ge-on-Si single-photon avalanche diodes based on a novel, to our knowledge, double mesa structure. Using this structure, the electric field at the mesa edges is suppressed compared to a traditional single mesa, leading to significant performance improvements. The dark current in linear mode shows a smaller increase for larger reverse voltages, resulting in a reduction by more than 260 times at low temperatures. Operated in the Geiger-mode at 110 K, the dark count rate in the double mesa is 100 times smaller. The devices achieve a dark count rate of 953 kHz, a single-photon detection efficiency of 7.3%, and a record-low jitter of 81 ps at an excess bias of 17.6% and a temperature of 110 K.

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采用双介子结构的硅基单光子雪崩二极管。

我们展示了基于新颖的（据我们所知）双介子结构的硅基单光子雪崩二极管的实验结果。与传统的单中子板相比，采用这种结构可以抑制中子板边缘的电场，从而显著提高性能。在线性模式下，反向电压越大，暗电流的增幅越小，因此在低温条件下，暗电流减少了 260 多倍。在 110 K 的盖革模式下工作时，双介子的暗计数率降低了 100 倍。在过偏压为 17.6% 和温度为 110 K 的条件下，该器件的暗计数率达到 953 kHz，单光子检测效率为 7.3%，抖动为 81 ps，创历史新低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.