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A five-mode multiplexer/demultiplexer based on a partially elongated five-core fiber is presented. Multiplexing operation is experimentally verified. Mode selectivity higher than 95% at 1550 nm, for both the LP11 and the LP21 mode, is achieved.
In this presentation, we report a simple and effective method for improving the performance of CH3NH3PbI3 perovskite solar cells. By employing a novel hot-air annealing process (HAAP) and a merged annealing method (MA) for preparing the perovskite CH3NH3PbI3 film, we could successfully enhance the crystallinity of the CH3NH3PbI3 active layer and improve its photon collection properties. This led to...
We demonstrate the application of several stochastic tools to the design of photonic integrated circuit. Monte Carlo analysis based on real measured statistics of the parameters is used to investigate of the impact of fabrication tolerances on the performance of a switch, including average power required for trimming. Polynomial-chaos-based models are used to optimize a filter design in order to minimize...
We present two novel SERS substrates which allow easily achievable sub-10 nm gaps — ‘Nanoparticles inside Nanolines’ and ‘Nanofingers inside Nanowires’. Theoretical studies based on Finite Difference Time Domain (FDTD) modelling as well as large-are fabrication methodologies for developing these substrates are discussed.
A single-ended ultra-thin spherical microbubble fabrication method based on the pressure-assisted arc discharge was developed. The thickness of microbubble could be reached to 2 microns. Its deformation sensitivity was about 22pm/kPa and 10pm/kPa at different pressures. The Q value was 10e7.
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