Photodetection with active optical antennas

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August undefined, 2024

WebMay 5, 2024 · Although gallium arsenide (GaAs) is one of the most commonly used semiconductor substrate materials, its intrinsic bandgap of 1.42 eV hinders the use of GaAs photodetectors for optical communication. In this study, hot‐electron‐based GaAs active antenna devices are demonstrated, displaying photoresponses well below the bandgap at … WebOptical antennas have in recent years become a back-bone of optics at subwavelength scales. Due to localized surface plasmon resonances arising from the collective motion of free electrons in metals, optical antennas have become useful for sensing, photodetection, heat transfer, and emission enhancement schemes [1–5]. More re-

Photodetection with Active Optical Antennas Science

WebMay 5, 2011 · Science – Photodetection with Active Optical Antennas Nanoantennas are key optical components for light harvesting; photodiodes convert light into a current of … WebMay 1, 2011 · Abstract. Nanoantennas are key optical components for light harvesting; photodiodes convert light into a current of electrons for photodetection. We show that these two distinct, independent functions can be combined into the same structure. Photons coupled into a metallic nanoantenna excite resonant plasmons, which decay into … flagstaff az to lake powell

基於超薄氧化鋅通道以及金屬吸光層之紅外光偵測元件__國立清華 …

WebSci-Hub Photodetection with Active Optical Antennas. Science, 332 (6030), 702–704 10.1126/science.1203056. . sci. hub. to open science. ↓ save. Knight, M. W., Sobhani, H., … WebSep 28, 2015 · In contrast to recent reports of photodetection based on hot electron decay in a plasmonic nanoscale antenna 7,8, a coherent optical antenna field appears to be rectified directly in our devices ... WebKnight, M. W., Sobhani, H., Nordlander, P., & Halas, N. J. (2011). Photodetection with Active Optical Antennas. Science, 332(6030), 702–704. doi:10.1126/science.1203056 canon michael wolfe liverpool

Analog Photonics LiDAR and Optical Communications

Mid-IR colloidal quantum dot detectors enhanced by optical nano-antennas

WebHere we report a grating-based hot electron device with significantly larger photocurrent responsivity than previously reported antenna-based geometries. The grating geometry … WebNanoantennas are key optical components for light harvesting; photodiodes convert light into a current of electrons for photodetection. We show that these two distinct, independent functions can be combined into the same structure. Photons coupled into a metallic nanoantenna excite resonant plasmons, which decay into energetic, “hot” electrons … flagstaff az to loveland coWebA plasmonic device possessing the DTTM active antenna structure for photodetection well below the semiconductor band edge. (a) Energy band diagram for plasmonically driven ‘hot’ electrons over ... flagstaff az to oklahoma city driving

"WebMay 5, 2024 · Although gallium arsenide (GaAs) is one of the most commonly used semiconductor substrate materials, its intrinsic bandgap of 1.42 eV hinders the use of GaAs photodetectors for optical communication. In this study, hot-electron-based GaAs active antenna devices are demonstrated, displaying photoresponses well below the bandgap at … " - Photodetection with active optical antennas

Photodetection with active optical antennas

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WebJan 30, 2016 · Knight MW, Sobhani H, Nordlander P, Halas NJ (2011) Photodetection with active optical antennas. Science 332:702–704. Article CAS Google Scholar Fang Z, Liu Z, Wang Y, Ajayan PM, Nordlander P, Halas NJ (2012) Graphene-antenna sandwich photodetector. Nano Lett 12:3808 WebApr 4, 2024 · 1 Introduction. Photodetectors that convert incident light in the ultraviolet, visible and/or infrared spectral regions into electrical signals are important optoelectronic devices that have drawn intensive attention in the past few decades [1-3] for numerous applications such as imaging, [4-6] optical communications, [7-9] and scientific …

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WebMay 6, 2011 · Science. An active optical antenna-diode combines the functions of light-harvesting and excited-electron injection. Nanoantennas are key optical components for light harvesting; photodiodes convert light into a current of electrons for photodetection. We show that these two distinct, independent functions can be combined into the same … WebMay 1, 2024 · In this study, hot‐electron‐based GaAs active antenna devices are demonstrated, displaying photoresponses well below the bandgap at the …

WebMay 6, 2011 · Nanoantennas are key optical components for light harvesting; photodiodes convert light into a current of electrons for photodetection. We show that these two … WebJan 28, 2024 · Synchronously wired infrared antennas for resonant single-quantum-well photodetection up to room temperature Nat Commun. 2024 Jan 28 ... Optical patch antennas sandwiching dielectrics between metal layers have been used as deep subwavelength building blocks of metasurfaces for perfect absorbers and thermal …

WebNov 1, 2024 · Optical nano-antennas (ONAs) are designed for enhancing light-harvesting efficiency in wireless transmission of optical energy and/or signals, which are of great interests in photodetection or solar energy conversion, particularly in micro-/nanoscale systems such as micro-/nanorobots, implantable sensors, and nanoelectromechanical … WebMay 1, 2011 · Abstract. Nanoantennas are key optical components for light harvesting; photodiodes convert light into a current of electrons for photodetection. We show that …

WebJul 20, 2024 · Plasmonic antenna coupling to hyperbolic phonon-polaritons for sensitive and fast mid-infrared photodetection with graphene 25 September 2024 Sebastián Castilla, Ioannis Vangelidis, …

WebJan 9, 2024 · To further improve the photoresponsivities of active optical antenna-based devices, Lin et al. proposed a concept of using an embedded trench-like (ETL) antenna-based device for photodetection in ... canon mini 260 driver downloadWebMay 6, 2011 · Optical antennas are key elements in the conversion of light from free space to ultrasmall, nanometer-scale volumes. The intense light-focusing properties of these structures are due to surface plasmons, oscillations of free electrons in metals that … canon mini print app on windowsWebJan 26, 2024 · We report the fabrication of a colloidal quantum dot based photodetector designed for the 3–5 μm mid infrared wavelength range incorporated with optical nano-antenna arrays to enhance the photocurrent. The fabricated arrays exhibit a resonant behavior dependent on the length of the nano-antenna rods, in good agreement with … canon mid range mirrorless cameraWebAssistant Staff. MIT Lincoln Laboratory. Oct 2016 - May 20244 years 8 months. Lexington, MA. >> Mechanical engineer at Lincoln Space Surveillance Complex. >> Lead mechanical … canon microfiber lens clothWebMay 6, 2011 · Science. An active optical antenna-diode combines the functions of light-harvesting and excited-electron injection. Nanoantennas are key optical components for … flagstaff az to petrified forest azWebMay 5, 2024 · Using a deep-trench/thin metal (DTTM) active antenna, a metallic plasmonic structure, high photoresponsivities are achieved under zero bias at wavelengths of 1310 … flagstaff az to omaha neWeb本論文旨在設計出可在室溫下操作的矽基(Silicon-based)熱載子式紅外光偵測器，同時也可作為熱載子種類之檢測平台。本論文中以超薄氧化鋅作為傳導電流的通道，以超薄摻鎵氧化鋅作為電極，並以銀作為收光材料。矽基光偵測器因結構簡單而備受關注，但若入射光子的能量小於矽的能隙，將無法貢獻 ... flagstaff az to phoenix az drive