基于一维环形光子晶体的有机化合物化学传感器的理论研究

IF 4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical and Quantum Electronics Pub Date : 2025-09-24 DOI:10.1007/s11082-025-08352-4

Sujit Kumar Saini, Sakshi Gandhi, Anubha Gupta, Suneet Kumar Awasthi

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引用次数: 0

摘要

本文研究了一维缺陷环形光子晶体（DeAPhC）的有机化合物传感性能。所提出的结构，表示为（AB）5CDC(AB)5，其中心有一个圆柱形空腔（区域D），其内壁涂有一层薄薄的圆柱形层（区域C）。将该缺陷引入到由10层材料a和b交替构成的周期性环形光子晶体（APhC）中，优化后的空腔厚度为1400 nm，当空腔中依次加载水和戊烷时，其最大质量因子为10,388.88，灵敏度为1354.5 nm/RIU。该结构还显示出优异的10−3数量级的优点数（FoM）和低至10−5的检测限（LoD），表明在检测水样中痕量有机化合物方面具有很高的精度。这些发现突出了所提出的DeAPhC结构在高灵敏度化学传感方面的潜力。该方法可以扩展到用于工业和生物医学应用的先进传感器的开发。

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Theoretical study of one-dimensional annular photonic crystal based chemical sensor for detection of organic compounds

This study investigates the organic compound sensing capability of a one-dimensional (1D) defective annular photonic crystal (DeAPhC). The proposed structure, represented as (AB)⁵CDC(AB)⁵, features a cylindrical air cavity (region D) at its center, whose inner walls are coated with a thin cylindrical layer (region C). This defect is introduced within a periodic annular photonic crystal (APhC) composed of ten alternating layers of materials A and B. The air cavity thickness is optimized to 1400 nm, which yields a maximum quality factor of 10,388.88 and a sensitivity of 1354.5 nm/RIU when the cavity is sequentially loaded with water and pentane. The structure also demonstrates an excellent figure of merit (FoM) on the order of 10⁻³ and a limit of detection (LoD) as low as 10⁻⁵, indicating high precision in detecting trace amounts of organic compounds in water samples. These findings highlight the potential of the proposed DeAPhC structure for highly sensitive chemical sensing. The approach can be extended to the development of advanced sensors for industrial and biomedical applications.

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.