具有高雪崩击穿概率的边缘耦合数字合金AlInAsSb SPAD

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-10-14 DOI:10.1063/5.0284982

Daniel J. Herrera, Kubra Circir, J. Andrew McArthur, Ellie Wang, Tasneem Fatema, Andreas Beling, Seth R. Bank, Joe C. Campbell

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引用次数: 0

摘要

波导耦合单光子雪崩探测器（spad）在1550 nm下具有接近统一的探测效率，在中等温度下工作，是许多量子光学应用的关键组成部分。III-V型化合物AlxIn1 - xAsySb1 - y具有材料特性，使其具有低噪声线性模式apd和高检测效率spad的吸引力。它可以在成熟的衬底上生长，在吸收截止方面具有高度的灵活性，并且由于其强烈的不对称电离系数，也可以实现高雪崩击穿概率。在这项工作中，我们模拟并实验表征了边缘耦合，1550 nm照明的alinassb基SPAD的雪崩击穿概率。我们报告雪崩击穿概率大于85%，过度偏差小于2.5%。

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Edge-coupled digital alloy AlInAsSb SPAD with high avalanche breakdown probability

Waveguide-coupled single-photon avalanche detectors (SPADs) with near-unity detection efficiencies at 1550 nm operating at moderate temperatures are a crucial component for numerous quantum optics applications. The III–V compound quaternary AlxIn1−xAsySb1−y, has material characteristics that make it attractive for low-noise linear-mode APDs and high-detection-efficiency SPADs. It can be grown on mature substrates with a high degree of flexibility with respect to absorption cutoff and can also achieve high avalanche breakdown probabilities due to its strongly asymmetric ionization coefficients. In this work, we simulate and experimentally characterize the avalanche breakdown probability of an edge-coupled, 1550 nm-illuminated AlInAsSb-based SPAD. We report avalanche breakdown probabilities greater than 85% at an over-bias of less than 2.5%.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.