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 waveg...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.展开更多
To the Editor:Combined nuclei stimulation may have a synergistic effect on controlling the symptoms of nervous system diseases and improving quality of life.[1]However,increasing of leads may increase costs and compli...To the Editor:Combined nuclei stimulation may have a synergistic effect on controlling the symptoms of nervous system diseases and improving quality of life.[1]However,increasing of leads may increase costs and complications.[2]Therefore,our study aims to investigate the safety and feasibility of the single curved lead,which can simultaneously reach both subthalamic nucleus(STN)and pedunculopontine nucleus(PPN).展开更多
文摘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.
基金National Natural Science Foundation of China(No. 81901395)
文摘To the Editor:Combined nuclei stimulation may have a synergistic effect on controlling the symptoms of nervous system diseases and improving quality of life.[1]However,increasing of leads may increase costs and complications.[2]Therefore,our study aims to investigate the safety and feasibility of the single curved lead,which can simultaneously reach both subthalamic nucleus(STN)and pedunculopontine nucleus(PPN).
