Mangach Hicham, El Badri Youssef, Hmima Abdelhamid, Bouzid Abdenbi, Achaoui Younes, Zeng Shuwen
Light, Nanomaterials Nanotechnologies (L2n), CNRS-ERL 7004, Université de Technologie de Troyes, 10000 Troyes, France.
Laboratory of Optics, Information Processing, Mechanics, Energetics and Electronics, Department of Physics, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50000, Morocco.
Nanomaterials (Basel). 2023 Jan 17;13(3):375. doi: 10.3390/nano13030375.
The exploration of the propensity of engineered materials to bring forward innovations predicated on their periodic nanostructured tailoring rather than the features of their individual compounds is a continuous pursuit that has propelled optical sensors to the forefront of ultra-sensitive bio-identification. Herein, a numerical analysis based on the Finite Element Method (FEM) was used to investigate and optimize the optical properties of a unidirectional asymmetric dimer photonic crystal (PhC). The proposed device has many advantages from a nanofabrication standpoint compared to conventional PhCs sensors, where integrating defects within the periodic array is imperative. The eigenvalue and transmission analysis performed indicate the presence of a protected, confined mode within the structure, resulting in a Fano-like response in the prohibited states. The optical sensor demonstrated a promising prospect for monitoring the DNA hybridization process, with a quality factor (QF) of roughly 1.53×105 and a detection limit (DL) of 4.4×10-5 RIU. Moreover, this approach is easily scalable in size while keeping the same attributes, which may potentially enable gaze monitoring.
探索工程材料基于其周期性纳米结构定制而非单个化合物特征来推动创新的倾向，是一项持续的追求，这已将光学传感器推向超灵敏生物识别的前沿。在此，基于有限元方法（FEM）的数值分析被用于研究和优化单向不对称二聚体光子晶体（PhC）的光学特性。与传统的PhC传感器相比，从纳米制造的角度来看，所提出的器件具有许多优势，在传统PhC传感器中，在周期性阵列中集成缺陷是必不可少的。进行的特征值和传输分析表明结构内存在一种受保护的受限模式，在禁带状态下产生类似法诺的响应。该光学传感器在监测DNA杂交过程方面展现出了有前景的前景，品质因数（QF）约为1.53×105，检测限（DL）为4.4×10-5 RIU。此外，这种方法在保持相同属性的同时，尺寸易于扩展，这可能潜在地实现凝视监测。
