In the present study, we study theoretically the detection of brain lesions by using the defected one-dimensional photonic crystal. The transfer matrix method is used to analyze the optical transmission characteristics of one-dimensional photonic crystals. The device performance is verified by measuring the red shift in resonant wavelength when the refractive index of brain lesions layer changes from 1.3333 to 1. 4833. Through the shifting spectrum, the sensitivity of the designed sensor for oligodendroglioma cells reaches to 3080.808 nm/RIU. The high figure of merit [FOM = 6.1 × 10 7 (1/RIU)] is achieved which evaluates the sensing performance comprehensively.

中文翻译：

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使用一维光子晶体快速检测脑部病变的生物光子传感器

在本研究中，我们从理论上研究了利用有缺陷的一维光子晶体检测脑部病变。传递矩阵法用于分析一维光子晶体的光传输特性。通过测量脑损伤层折射率从1.3333变为1.4833时共振波长的红移来验证器件性能。通过位移光谱，设计的少突神经胶质瘤细胞传感器的灵敏度达到3080.808 nm/RIU。实现了高品质因数 [FOM = 6.1 × 10 7 (1/RIU)]，可全面评估传感性能。