Nanoring Tamm cavity in the telecommunications O band

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2024-11-18 DOI:10.1063/5.0213200

Huili Hou, David Dlaka, Jon Pugh, Ruth Oulton, Edmund Harbord

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引用次数: 0

Abstract

Quantum and classical telecommunications require efficient sources of light. Semiconductor sources, owing to the high refractive index of the medium, often exploit photonic cavities to enhance the external emission of photons into a well-defined optical mode. Optical Tamm States (OTSs) in which light is confined between a distributed Bragg reflector and a thin metal layer have attracted interest as confined Tamm structures are readily manufactureable broadband cavities. Their efficiency is limited however by the absorption inherent in the metal layer. We propose a nanoring Tamm structure in which a nanoscale patterned annular metasurface is exploited to reduce this absorption and thereby enhance emission efficiency. To this end, we present designs for a nanoring Tamm structure optimized for the telecommunications O band and demonstrate a near doubling of output efficiency (35%) over an analogous solid disk confined Tamm structure (18%). Simulations of designs optimized for different wavelengths are suggestive of annular coupling between the Tamm state and surface plasmons. These designs are applicable to the design of single photon sources, nano-LEDs, and nanolasers for communications.

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电信 O 波段的纳宁塔姆空腔

量子和经典电信都需要高效的光源。由于介质的折射率较高，半导体光源通常利用光子空腔来增强光子的外部发射，使其进入定义明确的光学模式。在分布式布拉格反射器和薄金属层之间限制光的光学塔姆状态（OTS）引起了人们的兴趣，因为限制塔姆结构是容易制造的宽带空腔。然而，它们的效率受到金属层固有吸收的限制。我们提出了一种纳米 Tamm 结构，利用纳米级图案环形元表面来减少这种吸收，从而提高发射效率。为此，我们提出了针对电信 O 波段进行优化的纳米 Tamm 结构设计，并证明其输出效率（35%）比类似的固态盘约束 Tamm 结构（18%）提高了近一倍。针对不同波长的优化设计模拟表明，塔姆态和表面质子之间存在环状耦合。这些设计适用于单光子源、纳米 LED 和用于通信的纳米激光器的设计。

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

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.