WebWe propose the concept of a terahertz (THz) uncooled bolometer based on n-type and p-type graphene layers (GLs), constituting the absorbing regions, connected by an array of undoped graphene nanoribbons (GNRs). The GLs absorb the THz radiation with the GNR array playing the role of the barrier region (resulting in nGL-GNR-pGL bolometer). The … WebFeb 1, 2024 · In conclusion, we have proposed a dynamically tunable triple-band terahertz perfect absorber based on a graphene metasurface, which is composed of a cross and four side-stripes on top of a aluminum substrate sandwiched by a …
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WebWe propose the concept of a terahertz (THz) uncooled bolometer based on n-type and p-type graphene layers (GLs), constituting the absorbing regions, connected by an array of undoped graphene nanoribbons (GNRs). The GLs absorb the THz radiation with the GNR array playing the role of the barrier region (resulting in nGL-GNR-pGL bolometer). WebDec 20, 2013 · SiGe (C)/Si(C) multiquantum wells have been studied as a thermistor material for future bolometers. A thermistor material for … song whatever it takes lifehouse
Graphene terahertz uncooled bolometers - IOPscience
WebJun 2, 2024 · We report on the modulation characteristics of the uncooled terahertz (THz) and infrared (IR) detectors using uniform graphene layers (GLs) and perforated … WebThe suggested scheme of active THz imaging system (figure 1) uses BWO continuous source of 0.25 THz radiation with average output power 50 mW. BWO generates a THz beam with rather Arbitrary peaks, inhomogeneity, … WebJan 31, 2024 · Furthermore, the commercialized uncooled bolometers require sophisticated designs such as micro-bridges or thermal insulation layers to obtain good thermal insulation [13,14], as well as an extra IR absorption layer to ensure good photon absorbance. Thus, although high performance can be achieved with the above complex … small handheld weather stations