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INFRARED DETECTORS [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2018
Infrared detectors have wide application in a range of industry sectors, including defence, astronomy, medicine, environmental safety, and remote sensing. The applications requiring the highest sensitivity over a broad spectrum of wavelengths are usually
Titu-Marius I. Băjenescu
doaj   +5 more sources

Investigation of the influence of graded-gap layer formed by annealing on the electrical properties of the near-surface of LPE HgCdTe using MIS structure

open access: yesMaterials Research Express, 2021
The influence of the near-surface graded-gap layer formed by annealing of HgCdTe grown by liquid phase epitaxy on the capacitance-voltage characteristics of its MIS structure was studied.
Qi Lu   +4 more
doaj   +1 more source

Impact of nitrogen annealing on the electrical properties of HgCdTe epitaxial films

open access: yesMaterials Research Express, 2023
The nitrogen annealing of HgCdTe materials grown by molecular beam epitaxy (MBE) was carried out to manipulate their electrical properties. The results show that the annealing temperature, annealing time and cooling process all have significant ...
Dapeng Jin   +4 more
doaj   +1 more source

Area-dependent gain and noise characteristics of mid-wavelength infrared HgCdTe planar electron avalanche photodiodes

open access: yesMaterials Research Express, 2022
This paper mainly investigates the area-dependent gain and noise characteristics of mid-wavelength infrared (MWIR) Hg _0.7 Cd _0.3 Te planarelectron avalanche photodiodes (e-APDs) operated at 80 K.
Dan Yang   +7 more
doaj   +1 more source

Theoretical Analysis of Terahertz Dielectric–Loaded Graphene Waveguide

open access: yesNanomaterials, 2021
The waveguiding of terahertz surface plasmons by a GaAs strip-loaded graphene waveguide is investigated based on the effective-index method and the finite element method.
Da Teng, Kai Wang
doaj   +1 more source

Spatially, Spectrally Single-Mode and Mechanically Flexible 3D-Printed Terahertz Transmission Waveguides

open access: yesIEEE Photonics Journal, 2022
Emerged terahertz transmission waveguides or fibers will enable novel terahertz systems and applications. High-quality output beam profiles, mechanical flexibility and reliability are among the most crucial and challenging characteristics of terahertz ...
Bo Chen   +6 more
doaj   +1 more source

Cross-correlation method for noise measurements of photodetectors used for laser absorption spectroscopy [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2020
The paper presents noise measurements of low-resistance photon detectors with a specially developed system. These measurements are significant for many applications.
Krzysztof Achtenberg   +3 more
doaj   +1 more source

Development of a high-performance readout circuit for photoelectric detectors

open access: yesAIP Advances, 2020
A high-performance readout circuit for photoelectric detectors is developed in this paper to achieve high-speed low-noise image detection. Here, the W/L ratio of the first-stage P-type following transistor is reduced to decrease the parasitic capacitance
Honghui Yuan, Yongping Chen
doaj   +1 more source

High-accuracy source-independent radiometric calibration with low complexity for infrared photonic sensors

open access: yesLight: Science & Applications, 2021
A high-accuracy source-independent radiometric calibration (SIRC) methodology with low complexity for both photoconductive and photovoltaic infrared photonic sensors is proposed to provide an easier SI-traceable way for global observation systems.
Qiang Guo   +6 more
doaj   +1 more source

Advances in Mid-Infrared Single-Photon Detection

open access: yesPhotonics, 2022
The current state of the art of single-photon detectors operating in the mid-infrared wavelength range is reported in this review. These devices are essential for a wide range of applications, such as mid-infrared quantum communications, sensing, and ...
Stefano Dello Russo   +6 more
doaj   +1 more source

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