Huabin Yu, Shudan Xiao, Muhammad Hunain Memon, Yuanmin Luo, Rui Wang, Dong Li, Chao Shen, Haiding Sun
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Herein, a triangular-shaped micro-sized diode (T-μ-diode) is reported that can significantly boost its DUV emission and detection performance compared with a regular circular-shaped micro-diode (C-μ-diode) due to improved current injection and enhanced light extraction/absorption behavior. Specifically, the T-μ-diodes demonstrate superior light output power with a −3 dB modulation bandwidth over 566 MHz operating at an extremely high current density of 2 kA cm<sup>−2</sup> while possessing a higher photo-responsivity of ≈160 mA W<sup>−1</sup> with a faster response speed of 5.1 ns, surpassing the traditional C-μ-diodes in both light emitting and detecting modes. 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引用次数: 0
摘要
发光二极管和光电二极管通常充当发射器和接收器,是构建光通信系统的两个关键光学元件。近来,日盲光无线通信(SB-OWC)因其独特的优势,包括低背景噪声、高安全性和非视距能力,已成为一种前景广阔的自由空间通信平台。然而,深紫外(DUV)发射器和探测器的发展仍处于早期阶段,效率相对较低,探测能力较差,这阻碍了 SB-OWC 的进一步发展。本文报告了一种三角形微型二极管(T-μ-二极管),与普通的圆形微型二极管(C-μ-二极管)相比,该二极管由于改善了电流注入和增强了光提取/吸收行为,可显著提高深紫外发射和探测性能。具体来说,T-μ 二极管在 2 kA cm-2 的超高电流密度下工作时,具有超过 566 MHz 的 -3 dB 调制带宽,显示出卓越的光输出功率,同时具有≈160 mA W-1 的更高光响应率和 5.1 ns 的更快响应速度,在发光和检测模式下均超越了传统的 C-μ 二极管。重要的是,只需切换在同一平台上单片制造的两个具有增强发射和检测功能的 T-μ 二极管的工作模式,即可实现双向片上数据传输系统。
Dual-Functional Triangular-Shape Micro-Size Light-Emitting and Detecting Diode for On-Chip Optical Communication in the Deep Ultraviolet Band
Light-emitting diodes and photodiodes, often acting as transmitters and receivers, are two key optical components for constructing an optical communication system. Recently, solar-blind optical wireless communication (SB-OWC) has emerged as a promising free-space communication platform due to its unique advantages, including low background noise, high security, and non-line-of-sight ability. However, the development of deep ultraviolet (DUV) emitters and detectors is still in its early stages with relatively low efficiency and poor detection capability, which hampers the further progress of SB-OWC. Herein, a triangular-shaped micro-sized diode (T-μ-diode) is reported that can significantly boost its DUV emission and detection performance compared with a regular circular-shaped micro-diode (C-μ-diode) due to improved current injection and enhanced light extraction/absorption behavior. Specifically, the T-μ-diodes demonstrate superior light output power with a −3 dB modulation bandwidth over 566 MHz operating at an extremely high current density of 2 kA cm−2 while possessing a higher photo-responsivity of ≈160 mA W−1 with a faster response speed of 5.1 ns, surpassing the traditional C-μ-diodes in both light emitting and detecting modes. Importantly, a bidirectional on-chip data transmission system is realized by simply switching the operation mode of two T-μ-diodes monolithically fabricated on the same platform with boosted emission and detection functionalities.
期刊介绍:
Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications.
As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics.
The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.