Results 21 to 30 of about 34,337 (296)

Two-photon quantum well infrared photodetectors below 6 THz

open access: yes, 2022
S.30-33Two-photon quantum well infrared photodetectors (QWIPs) are nonlinear detectors for the mid-infrared and terahertz regimes optimized for resonant two-photon absorption.
Schneider, H.   +3 more
core   +1 more source

Performance enhanced Metal‐Semiconductor‐Metal photodetector based on double‐layer ZnO nanorods

open access: yesElectronics Letters, 2022
This study reports that photodetectors based on double‐layer ZnO nanorods grown on AZO seed layer by hydrothermal method. Compared with the photodetectors with single‐layer nanorods, the on/off ratio of the photodetectors with double‐layer ZnO nanorods ...
Lingling Chu   +4 more
doaj   +1 more source

Quadratic detection with two-photon quantum well infrared photodetectors

open access: yes, 2022
S.419-423Two-photon quantum well infrared photodetectors (QWIPs) involving three equidistant subbands take advantage of a resonantly enhanced optical nonlinearity, which is six orders of magnitude stronger than in a bulk semiconductor.
Liu, H.C.   +7 more
core   +1 more source

High Photon Absorptivity of Quantum Dot Infrared Photodetectors Achieved by the Surface Plasmon Effect of Metal Nanohole Array

open access: yesNanoscale Research Letters, 2020
With the increasing demand for small-scale photodetector devices, quantum dot–based infrared photodetectors have attracted more and more attention in the past decades.
Hongmei Liu   +4 more
doaj   +1 more source

Recent Advances in High Speed Photodetectors for eSWIR/MWIR/LWIR Applications

open access: yesPhotonics, 2021
High speed photodetectors operating at a telecommunication band (from 1260 to 1625 nm) have been well studied with the development of an optical fiber communication system.
Baile Chen, Yaojiang Chen, Zhuo Deng
doaj   +1 more source

Balanced photodetectors

open access: yes, 2020
Prather, Dennis W.As telecommunication systems require greater amounts of data to be transferred, communication links and hardware must evolve to use higher frequency radio frequency waves with wavelengths on the order of a millimeter.
Linderman, Kyle
core   +1 more source

Spectrally Selective Full-Color Single-Component Organic Photodetectors Based on Donor-Acceptor Conjugated Molecules

open access: yesMolecules, 2023
Photodetectors based on organic materials are attractive due to their tunable spectral response and biocompatibility, meaning that they are a promising platform for an artificial human eye. To mimic the photoelectric response of the human eye, narrowband
Artur L. Mannanov   +6 more
doaj   +1 more source

Infrarot Bildfeldmosaik basierend auf MWIR/LWIR Dualband QWIPs: Detektoroptimierung und Eigenschaften des Detektorfeldes

open access: yes, 2022
S.35-42Quantum well infrared photodetectors (QWIPs) have gained maturity for large focal plane arrays (FPA) with excellent thermal resolution, low 1/f noise, low fixed-pattern noise, and high pixel operability.
Maier, Thomas   +10 more
core   +1 more source

Plasmon enhanced perovskite-metallic photodetectors

open access: yesMaterials & Design, 2021
Perovskite based photodetectors and hybrid devices possess distinctive properties which have enabled considerable practical applications since perovskite is an ideal candidate for higher sensitivity and response speed.
Qiongchan Gu   +6 more
doaj   +1 more source

Axial InN/InGaN Nanorod Array Heterojunction Photodetector with Ultrafast Speed

open access: yesAdvanced Electronic Materials, 2023
Due to wavelength‐selective characteristics, the InGaN‐based photodetectors show bright prospects in visible light communication and fast imaging system.
Jixing Chai   +7 more
doaj   +1 more source

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