WebJun 13, 2024 · Extraordinary and unusual electronic and optical properties make graphene and other two-dimensional (2D) materials promising candidates for infrared and terahertz (THz) photodetectors. Until now, however, 2D material-based performance is lower in comparison with those of infrared and terahertz detectors existing in the global market. WebMay 22, 2024 · In this paper, we present the development of a graphene-based hot electron bolometer with Johnson noise readout. The bolometer is a graphene microbridge …
A fast and sensitive room-temperature graphene …
WebApr 21, 2024 · Graphene terahertz uncooled bolometers V Ryzhii1,3, T Otsuji1, M Ryzhii2, N Ryabova3,SOYurchenko3, V Mitin4 and M S Shur5 1 Research Institute for … 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 … tati casiraghi kinder
Graphene terahertz uncooled bolometers – arXiv Vanity
WebSep 22, 2024 · The authors have reported high-performance on-chip integrable uncooled terahertz microbolometer arrays with nanoscale meander-shaped Ti thermistors, fabricated and compatible with state-of-the-art and medium-scale semiconductor device processes. WebNov 4, 2024 · The terahertz (THz) detectors are generally classified in two broad categories: thermal detectors and photon detectors. Their operation principled is briefly described in Table 1. Table 1 Operation principles of THz detectors Full size table 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, … ta tidig pension