A new photonic crystal ring resonator(PCRR) configuration is provided based on two-dimensional(2D) square lattice photonic crystal(PC) silicon rods.The ring is formed by removing the line defect along ΓM direction in...A new photonic crystal ring resonator(PCRR) configuration is provided based on two-dimensional(2D) square lattice photonic crystal(PC) silicon rods.The ring is formed by removing the line defect along ΓM direction instead of conventional ΓX direction.Its spectral information including transmission intensity,dropped efficiency and quality factor affected by different physical parameters and the cascaded engineering including parallel and serial configurations are numerically analyzed with 2D finite-difference time-domain(FDTD) technique.The spectral quality factor of more than 830 and dropped efficiency of 90% at 1550 nm channel can be obtained with a less than 2.2 μm ring radius.展开更多
A new compact optical Fano filter suitable for biological sensing is proposed,which patterns photon crystal in single crystalline silicon nanomembranes(SiNMs) and transferring onto transparent glass substrates.The eff...A new compact optical Fano filter suitable for biological sensing is proposed,which patterns photon crystal in single crystalline silicon nanomembranes(SiNMs) and transferring onto transparent glass substrates.The effects of air hole size and silicon thickness on the transmission characteristics of new filter are numerically investigated by using three-dimensional finite-difference time-domain(FDTD) technique,the spectral response is also studied by back-filling bioliquid.The results show that the dip wavelength will shift toward longer wavelength by either reducing air hole radius or filling bio-liquid.The number of dips will increase with the increase of silicon thickness.The size of proposed filter can be less than 1 mm2.展开更多
基金supported by the Natural Science Foundation of Fujian Province of China (Nos. F0950055 and A0910028)the Research Program of Science and Technology of Fujian Education Office of China (No. JB09049)
文摘A new photonic crystal ring resonator(PCRR) configuration is provided based on two-dimensional(2D) square lattice photonic crystal(PC) silicon rods.The ring is formed by removing the line defect along ΓM direction instead of conventional ΓX direction.Its spectral information including transmission intensity,dropped efficiency and quality factor affected by different physical parameters and the cascaded engineering including parallel and serial configurations are numerically analyzed with 2D finite-difference time-domain(FDTD) technique.The spectral quality factor of more than 830 and dropped efficiency of 90% at 1550 nm channel can be obtained with a less than 2.2 μm ring radius.
基金Supported by the Research Program of Science and Technology of Fujian Education Office of China (No.JA08183 and JA081878)
文摘A new compact optical Fano filter suitable for biological sensing is proposed,which patterns photon crystal in single crystalline silicon nanomembranes(SiNMs) and transferring onto transparent glass substrates.The effects of air hole size and silicon thickness on the transmission characteristics of new filter are numerically investigated by using three-dimensional finite-difference time-domain(FDTD) technique,the spectral response is also studied by back-filling bioliquid.The results show that the dip wavelength will shift toward longer wavelength by either reducing air hole radius or filling bio-liquid.The number of dips will increase with the increase of silicon thickness.The size of proposed filter can be less than 1 mm2.
