We propose and analyze a submicron stub-assisted ultrafast all-optical plasmonic switch based on nonlinear MIM waveguide. It is constructed by two silicon stub filters sandwiched by silver cladding. The signal wavelen...We propose and analyze a submicron stub-assisted ultrafast all-optical plasmonic switch based on nonlinear MIM waveguide. It is constructed by two silicon stub filters sandwiched by silver cladding. The signal wavelength is assumed to be 1550 nm. The simulation results show a ?14.66 dB extinction ratio. Downscaling the silicon waveguide in MIM structure leads to enhancement of the effective Kerr nonlinearity due to tight mode confinement. Also, using O+ ions implanted into silicon, the switching time less than 10 ps and a delay time less than 8 fs are achieved. The overall length of the switch is 550 nm.展开更多
A miniaturized square resonator bandpass filter with circular stubs is designed, fabricated, and characterized. Analytical calculations were carried out to determine the critical filter parameters and the design was o...A miniaturized square resonator bandpass filter with circular stubs is designed, fabricated, and characterized. Analytical calculations were carried out to determine the critical filter parameters and the design was optimized using a 3D electromagnetic finite-element solver. The measured results were in good agreement with the designed results. The proposed filter exhibits significant improvement in bandwidth compared to the conventional square resonator bandpass filters.展开更多
设计了一种紧凑的新型宽带双模带通滤波器。该滤波器基于一个直连馈线弯曲方环谐振器的带阻结构,加载调谐短截线构成带通滤波器,通过将所加载短截线弯曲实现滤波器的小型化。此外,方环1/4角上放置微扰并在侧面阻带位置激起的模式可以实...设计了一种紧凑的新型宽带双模带通滤波器。该滤波器基于一个直连馈线弯曲方环谐振器的带阻结构,加载调谐短截线构成带通滤波器,通过将所加载短截线弯曲实现滤波器的小型化。此外,方环1/4角上放置微扰并在侧面阻带位置激起的模式可以实现带通滤波器的选择性。实验结果表明:滤波器的中心频率为5.41 GHz,3 d B带宽为59.5%,插入损耗为0.16 d B,带内的反射损耗大于11 d B,符合设计要求。展开更多
文摘We propose and analyze a submicron stub-assisted ultrafast all-optical plasmonic switch based on nonlinear MIM waveguide. It is constructed by two silicon stub filters sandwiched by silver cladding. The signal wavelength is assumed to be 1550 nm. The simulation results show a ?14.66 dB extinction ratio. Downscaling the silicon waveguide in MIM structure leads to enhancement of the effective Kerr nonlinearity due to tight mode confinement. Also, using O+ ions implanted into silicon, the switching time less than 10 ps and a delay time less than 8 fs are achieved. The overall length of the switch is 550 nm.
文摘A miniaturized square resonator bandpass filter with circular stubs is designed, fabricated, and characterized. Analytical calculations were carried out to determine the critical filter parameters and the design was optimized using a 3D electromagnetic finite-element solver. The measured results were in good agreement with the designed results. The proposed filter exhibits significant improvement in bandwidth compared to the conventional square resonator bandpass filters.
文摘设计了一种紧凑的新型宽带双模带通滤波器。该滤波器基于一个直连馈线弯曲方环谐振器的带阻结构,加载调谐短截线构成带通滤波器,通过将所加载短截线弯曲实现滤波器的小型化。此外,方环1/4角上放置微扰并在侧面阻带位置激起的模式可以实现带通滤波器的选择性。实验结果表明:滤波器的中心频率为5.41 GHz,3 d B带宽为59.5%,插入损耗为0.16 d B,带内的反射损耗大于11 d B,符合设计要求。
