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This paper demonstrated a tunable long-wavelength photodetector by using the heteroepitaxy growth of InP-In0.53Ga0.47As-InP p-i-n structure on a GaAs-based GaAs/AlAs Fabry-Perot filter structure. High-quality heteroepitaxy was realized by employing a thin low-temperature buffer layer. A wavelength tuning range of 10.0 nm, an external quantum efficiency of about 23%, a spectral linewidth of 0.8 nm,...
There have been many studies about the limit of the broadband impedance matching problems, since the early work from Bode [1], Fano [2] and Youla [3], more recently extended by Carlin et al. [4]. Previous work has presented applications of the theory of Youla and Carlin to circuit models of two different antennas (a single-band and a dual- band antenna-chassis combinations) and provided the matching...
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