用于中红外光谱和传感的硅光子器件中的亚波长光栅

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2023-12-14 DOI:10.1016/j.photonics.2023.101223
Callum J. Stirling , Milos Nedeljkovic , Colin Mitchell , David J. Rowe , Goran Z. Mashanovich
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引用次数: 0

摘要

近年来,硅光子学所支持的中红外光谱仪作为一种可扩展的传感技术受到了极大的关注。这种设备的开发将为众多领域的广泛应用提供廉价、便捷的仪器。然而,并非每种传感应用都是相同的;要生产出适用于真实世界场景的传感器,工程师需要灵活的设备设计,同时还需要保持与可扩展制造工艺的兼容性。亚波长光栅可为这一问题提供解决方案,因为亚波长光栅可利用标准制造技术对光学特性进行工程设计,而无需使用新材料。通过使用亚波长光栅,可以根据不同的应用定制特定的设计方法,例如增强传感器与分析物的相互作用或拓宽集成光子设备的带宽。在此,我们回顾了基于亚波长光栅的中红外硅光子器件的发展,并讨论了如何将其用于光谱和传感器件。
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Sub-wavelength gratings in silicon photonic devices for mid-infrared spectroscopy and sensing

Mid-infrared spectroscopy enabled by silicon photonics has received great interest in recent years as a pathway for a scalable sensing technology. The development of such devices would realise inexpensive and accessible instrumentation for a wide variety of uses over numerous fields. However, not every sensing application is the same; to produce sensors for real-world scenarios, engineers need flexibility in device design but also need to maintain compatibility with scalable fabrication processes. Sub-wavelength gratings can offer a solution to this problem, as they enable the engineering of optical properties using standard fabrication techniques and without requiring new materials. By using sub-wavelength gratings, specific design approaches can be tailored to different applications, such as increasing the interaction of a sensor with an analyte or broadening the bandwidth of an integrated photonic device. Here, we review the development of sub-wavelength grating-based devices for mid-infrared silicon photonics and discuss how they can be exploited for spectroscopic and sensing devices.

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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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