Zhang Ding-Yuan, Sui Jun-Yang, Liu You-Ming, Zhang Hai-Feng
School of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China.
College of Electronic and Optical Engineering and the College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, China.
Phys Chem Chem Phys. 2023 Aug 16;25(32):21456-21467. doi: 10.1039/d3cp02329j.
Based on cylindrical photonic crystals in one dimension, a multi-scale sensor device with a logic operation is being proposed. At the same time, it can satisfy the functions of refractive index (RI) and magnetic field detection. Under the modulation of an external magnetic field, sharp absorption peaks (APs) are obtained in the terahertz (THz) range. In a certain frequency range (AP value above 0.9), as the particular InSb layers are applied to two different magnetic fields, APs of the same frequency can be implemented to operate as XOR logic gates. The results show that with a change in the detected physical quantity, the frequency point of the corresponding AP also moves. Therefore, by adjusting the position of the AP, the magnetic field and RI can be sensed, and the device shows relatively excellent performance of 6879.88 and 6943.65 in terms of quality factor. In addition, the optimal performance of sensitivity, detection limit, and corresponding figure of merit is 0.01264(2π) T, 2.25 × 10 T, 227.23 T, and -0.003779(2π) RIU, 7.69 × 10 RIU, 67.74 RIU. In terms of overall sensors, the proposed device is highly innovative in structure and meets the requirements of multi-scale measurements.
基于一维圆柱形光子晶体，正在提出一种具有逻辑运算功能的多尺度传感器装置。同时，它能够满足折射率（RI）和磁场检测的功能。在外部磁场的调制下，在太赫兹（THz）范围内获得尖锐的吸收峰（APs）。在特定频率范围内（AP值高于0.9），当将特定的InSb层应用于两个不同的磁场时，相同频率的APs可被实现用作异或逻辑门。结果表明，随着被检测物理量的变化，相应AP的频率点也会移动。因此，通过调整AP的位置，可以感测磁场和RI，并且该装置在品质因数方面表现出相对优异的性能，分别为6879.88和6943.65。此外，灵敏度、检测限和相应品质因数的最佳性能分别为0.01264(2π) T、2.25×10 T、227.23 T以及-0.003779(2π) RIU、7.69×10 RIU、67.74 RIU。就整体传感器而言，所提出的装置在结构上具有高度创新性，并且满足多尺度测量的要求。
