نتایج جستجو برای: carrier properties
تعداد نتایج: 933214 فیلتر نتایج به سال:
Impact of substrate characteristics on performance of large area plasmonic photoconductive emitters.
We present a comprehensive analysis of terahertz radiation from large area plasmonic photoconductive emitters in relation with characteristics of device substrate. Specifically, we investigate the radiation properties of large area plasmonic photoconductive emitters fabricated on GaAs substrates that exhibit short carrier lifetimes through low-temperature substrate growth and through epitaxiall...
in this research, graphene was synthesized by chemical vapor deposition (cvd) method in atmosphere pressure (14.7 psi). different functionalization method was used for oxidizing of graphene such as acid and alkaline treatments. the functionalized graphene (fg) was characterized by ftir and raman spectroscopy. nanofluid with water and different concentration (0.05, 0.15 and 0.25 wt %) of fg were...
Coarticulation is an important phenomenon of speech production, which involves in both the physical level concerned with articulators’ properties, and the planning stage for generating motor commands. The authors have proposed a model for coarticulation, named “carrier model”, to imitate the coarticulation mechanism. The carrier model is built on an assumption that articulation can be separated...
Scaling properties of two photon absorption, free carrier scattering, Raman scattering and Kerr effect in silicon waveguides is reported. It is shown that the dependence of minority carrier lifetime on waveguide dimensions has a profound impact on the performance of nonlinear optical devices built using silicon waveguides.
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