A High Sensitivity Pressure Sensor Based on Two-Dimensional Photonic Crystal  

作　　者：Shangbin TAO Deyuan CHEN Juebin WANG Jing QIAO Yali DUAN 

机构地区：[1]Nangjing University of Posts and Telecommunications, Nanjing, 210009, China

出　　处：《Photonic Sensors》2016年第2期137-142,共6页光子传感器（英文版）

摘　　要：In this paper, we propose and simulate a pressure sensor based on two-dimensional photonic crystal with the high quality factor and sensitivity. The sensor is formed by the coupling of two photonic crystal based waveguides and one nanocavity. The photonic crystal withthe triangular lattice is composed of GaAs rods. The detailed structures of the waveguides and nanocavity are optimized to achieve better quality factor and sensitivity of the sensor. For the optimized structures, the resonant wavelength of the sensor has a linear redshift as increasing the applied pressure in the range of 0 - 2 GPa, and the quality factor keeps unchanged nearly. The optimized quality factor is around 1500, and the sensitivity is up to 13.9nm/GPa.In this paper, we propose and simulate a pressure sensor based on two-dimensional photonic crystal with the high quality factor and sensitivity. The sensor is formed by the coupling of two photonic crystal based waveguides and one nanocavity. The photonic crystal withthe triangular lattice is composed of GaAs rods. The detailed structures of the waveguides and nanocavity are optimized to achieve better quality factor and sensitivity of the sensor. For the optimized structures, the resonant wavelength of the sensor has a linear redshift as increasing the applied pressure in the range of 0 - 2 GPa, and the quality factor keeps unchanged nearly. The optimized quality factor is around 1500, and the sensitivity is up to 13.9nm/GPa.

关 键 词：Photonic crystal WAVEGUIDE NANOCAVITY pressure sensor 

分 类 号：TN201[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]