Ultra-Compact Large Extinction Ratio Fano Resonance From Photonic Crystal Nanobeam Cavity

IF 2.5 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-09-02 DOI:10.1109/LPT.2025.3604855

Bangze Wu;Yingjie Xu;Lidan Lu;Xuhong Chen;Guang Chen;Lianqing Zhu

引用次数: 0

Abstract

An ultra-compact photonic crystal nanobeam cavity (PCNC) with a gradient period constant achieves a high extinction ratio (ER) of 46.108 dB in only

$12.6~\mu $

m2. Fano resonance is induced via continuum mode coupling by integrating a partial transmission element (PTE), yielding a single, sharp resonance peak across the 1500 – 1600 nm band. Experimental results confirm pronounced Fano transmission spectra and effective thermally induced wavelength shift. The device is designed for multi-project-wafer (MPW) compatibility, providing exceptional spectral control at sub-wavelength scales, meeting the low-power, high-density requirements of photonic computing and offering broad application potential in photonic convolutional neural networks (CNNs).

查看原文本刊更多论文

光子晶体纳米束腔的超紧凑大消光比范诺共振

具有梯度周期常数的超紧凑光子晶体纳米束腔（PCNC）在12.6~\mu $ m2内实现了46.108 dB的高消光比（ER）。Fano共振是通过集成部分传输元件（PTE）的连续模式耦合引起的，在1500 - 1600 nm波段产生单个尖锐的共振峰。实验结果证实了明显的Fano透射光谱和有效的热诱导波长偏移。该器件具有多项目-晶圆（MPW）兼容性，在亚波长尺度上提供卓越的光谱控制，满足光子计算的低功耗、高密度要求，并在光子卷积神经网络（cnn）中具有广泛的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.