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Graphene-antenna sandwich photodetector

WebGraphene-Antenna Sandwich Photodetector Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and … WebJun 15, 2012 · Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and …

Surface plasmon polariton waves propagation at the boundary of graphene …

WebWe report on an integrated plasmonic ultraviolet (UV) photodetector composed of aluminum Fano-resonant heptamer nanoantennas deposited on a Gallium Nitride (GaN) active layer which is grown on a sapphire substrate to generate significant photocurrent via formation of hot electrons by nanoclusters upon the decay of nonequilibrium plasmons. … Web目前,人们已经提出各种不同的方法来提高石墨烯在不同波段的吸收率。在波长较长中红外和远红外波段(对应自由空间波长约5～10μm),一种有效提高石墨烯的吸收率的方法是激发“石墨烯表面等离激元(Graphene surface plasmon polaritons,即GSPP)”。 lendarias clash royale https://fourseasonsoflove.com

Design strategies for two‐dimensional material photodetectors to ...

WebJun 19, 2012 · Abstract. Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared … WebDec 11, 2013 · We demonstrate the controlled enhancement of photoresponsivity in a graphene photodetector by coupling to slow light modes in a long photonic crystal linear defect cavity. Near the Brillouin zone (BZ) boundary, spectral coupling of multiple cavity modes results in broad-band photocurrent enhancement from 1530 nm to 1540 nm. … WebSep 15, 2024 · 2D material-plasmonic hybrid photodetectors. A, Photocurrent measurements of the graphene-antenna sandwich photodetector obtained along the line-scan direction with different antenna geometries. Data from the control device without an Au antenna are also presented. The inset is a schematic of the device, with the zero point … lendava weather

Gold-patched graphene nano-stripes for high-responsivity and

Category:Graphene-Antenna Sandwich Photodetector - figshare.com

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Graphene-antenna sandwich photodetector

Recent developments of infrared photodetectors with low

WebOct 19, 2024 · This work was supported by National Key Research and Development Program of China (Nos. 2024YFA0205800 and 2024YFA0306200); National Natural Science Foundation of China (Nos. 61975223, 61874126, 91850208, 61991442, and 61521005); Hundred Talents Program of the Chinese Academy of Sciences (No. …

Graphene-antenna sandwich photodetector

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WebThe sandwiched photodetector achieved an internal quantum efficiency of up to 20% in the visible and near-infrared spectrums, and a responsivity of 13 mA W −1 . ... View in full … WebJul 11, 2012 · Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons into electrons …

WebA metallic nanoantenna, under resonant illumination, injects nonequilibrium hot electrons into a nearby graphene structure, effectively doping the material. A prominent change in carrier density was observed for a … WebJun 20, 2024 · We demonstrate an on-chip ultrafast photodetector based on a two-dimensional heterostructure consisting of high-quality graphene encapsulated in hexagonal boron nitride. Coupled to the optical mode of a silicon waveguide, this 2D heterostructure-based photodetector exhibits a maximum responsivity of 0.36 A/W and high-speed …

http://english.phy.pku.edu.cn/info/1031/4094.htm WebJun 30, 2024 · Position-sensitive detector (PSD) is an optical inspection device for the precise measurements of position, distance, angle, and other relevant physical variables. It is a widely used component in the fields of tracking, aerospace, nanorobotics, and so forth. Essentially, PSD is also a photodetector based on the lateral photovoltaic effect (LPE ...

WebABSTRACT: Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons into electrons …

WebAug 4, 2024 · Low-dimensional inorganic nanostructures such as quantum dots as well as one- and two-dimensional nanostructures are widely studied and already used in high-performance infrared photodetectors. These structures feature large surface-to-volume ratios, tunable light absorption, and electron-limiting effects. This article reviews the state … lend apotheke grazWebCombining graphene with traditional plasmonic structures provides new opportunities and challenges. One particular application for. Graphene is a monolayer plasmonic material that has been widely studied in the area of plasmonics and nanophotonics. Combining graphene with traditional plasmonic structures provides new opportunities and challenges. len dawson autographed pictureWebJun 13, 2024 · Since the discovery of graphene, its applications to electronic and optoelectronic devices have been intensively and thoroughly researched. Extraordinary and unusual electronic and optical properties … len dawson scholarship