Recent advances in gas and chemical detection by Vernier effect-based photonic sensors.

Recent advances in gas and chemical detection by Vernier effect-based photonic sensors.
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DOI:
10.3390/s140304831
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发表时间:
2014-03-10
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Passaro VM
Passaro VM
中科院分区:
其他
文献类型:
--
作者:
La Notte M;Troia B;Muciaccia T;Campanella CE;De Leonardis F;Passaro VM

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最近,游标效应已被证明对于显着提高化学、生化和气体光子传感器的灵敏度和检测限(LOD)非常有效。本文对基于游标效应的紧凑高效光子传感器进行了综述。报告了几项理论和实验工作的最相关结果,并讨论了典型的基于游标效应的传感器的理论模型。特别是,实验报告了高达 460 μm/RIU 的灵敏度,同时从理论上证明了 2,500 μm/RIU 的超高灵敏度和 8.79 × 10−8 RIU 的超低 LOD,采用马赫-曾德干涉仪(MZI)作为传感装置而不是加滴环谐振器。
Recently, the Vernier effect has been proved to be very efficient for significantly improving the sensitivity and the limit of detection (LOD) of chemical, biochemical and gas photonic sensors. In this paper a review of compact and efficient photonic sensors based on the Vernier effect is presented. The most relevant results of several theoretical and experimental works are reported, and the theoretical model of the typical Vernier effect-based sensor is discussed as well. In particular, sensitivity up to 460 μm/RIU has been experimentally reported, while ultra-high sensitivity of 2,500 μm/RIU and ultra-low LOD of 8.79 × 10−8 RIU have been theoretically demonstrated, employing a Mach-Zehnder Interferometer (MZI) as sensing device instead of an add drop ring resonator.
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