In this paper, we propose an ultrasensitive terahertz sensor based on the complementary graphene metamaterial composed of wire-slot and split-ring resonator slot array structure.
aWe numerically investigated an ultra-broadband, polarization-insensitive, and wide-angle metamaterial absorber for harvesting solar energy using arrays of cascading three sets of subunit cell structures with obviously different lateral sizes, while each of subunit cell structures is composed of three pairs of metal-dielectric layers with the same lateral sizes but different dielectric constants. In this structure, the varying lateral dimensions provide multiple resonance main-bands in the composite structure, while the different dielectric constants of the dielectric layers induce multiple resonance subbands in the subunit cell. Simulation results show that the average absorption over the spectrum regime of 284-1524nm is more than 92%. Moreover, the ultra-broadband response above 92% absorption can be still maintained even when θ reaches 30 degrees. The ultra-broadband absorption obtained is attributed to the synthetic effect by the excitation of all resonances in the multiple resonant stacks of 3×3 cascading metal-dielectric pairs. Our absorber design has high practical feasibility and appears to be very promising for solar cell and photonic detection applications.
Abstract.With the development of CUDA architecture and GPU technologies, parallel rendering technologys have been developed rapidly. There are already some parallel rendering frameworks, such as Chromium, MPK, VR Juggler, etc., but these systems have obvious flaws.In this paper,GGPRF: a GPU-Based Generic Parallel Rendering Framework is proposed. The framework contains three roles, Master, Server, and Slave, which are responsible for rendering task drivers, cluster management, and rendering. Server manages the entire parallel rendering system's organizational structure through the NTTree (Network Topological Tree) data structure. GGPRFhas improved the shortcomings of the existing universal parallel rendering framework, which has the advantages of universal, extensibility and ease of use. In this paper, the design of the frame is described in detail and the experiment is tested.
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