Enhanced performance of HgCdTe midwavelength infrared electron avalanche photodetectors with guard ring designs

Q Li, F Wang, P Wang, L Zhang, J He… - … on Electron Devices, 2020 - ieeexplore.ieee.org
In this article, the performance of midwavelength infrared (MWIR) HgCdTe electron
avalanche photodiodes (e-APDs) with variable annealing processes and guard ring design …

Reducing inter-pixel crosstalk in HgCdTe detectors

M Vallone, M Goano, F Bertazzi, G Ghione… - Optical and Quantum …, 2020 - Springer
In state-of-the-art, large format, HgCdTe-based infrared focal plane arrays the typical pixel
size (3–10\upmu m μ m) is of the order of the operating wavelength and much smaller than …

Physics-aware roughness optimization for diffractive optical neural networks

S Zhou, Y Li, M Lou, W Gao, Z Shi… - 2023 60th ACM/IEEE …, 2023 - ieeexplore.ieee.org
As a representative next-generation device/circuit technology beyond CMOS, diffractive
optical neural networks (DONNs) have shown promising advantages over conventional …

Constraints and performance trade-offs in Auger-suppressed HgCdTe focal plane arrays

M Vallone, M Goano, F Bertazzi, G Ghione, S Hanna… - Applied Optics, 2020 - opg.optica.org
Majority carrier depletion has been proposed as a method to suppress the dark current
originating from quasi-neutral regions in HgCdTe infrared focal plane array detectors …

Monte Carlo simulation of photoelectric characteristics of mercury–cadmium–tellurium-based infrared focal-plane-array detectors

VG Polovinkin, VA Stuchinsky… - … on Electron Devices, 2018 - ieeexplore.ieee.org
A mathematical model was developed to enable the Monte Carlo analysis of the charge-
carrier diffusion process in the absorber layer of mercury-cadmium-tellurium (MCT) …

Challenges in multiphysics modeling of dual-band HgCdTe infrared detectors

M Vallone, M Goano, A Tibaldi, S Hanna, D Eich… - Applied Optics, 2020 - opg.optica.org
We present three-dimensional simulations of HgCdTe-based focal plane arrays (FPAs) with
two-color and dual-band sequential infrared pixels having realistic truncated-pyramid shape …

FDTD simulation of compositionally graded HgCdTe photodetectors

M Vallone, M Goano, F Bertazzi, G Ghione… - Infrared Physics & …, 2019 - Elsevier
The ability to simulate HgCdTe infrared detectors with realistic alloy composition profiles is
essential for their optimization. We give practical guidelines for the realization of combined …

Quantum efficiency and crosstalk in subwavelength HgCdTe dual band infrared detectors

M Vallone, M Goano, A Tibaldi, S Hanna… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
This work investigates the spectral quantum efficiency and inter-pixel crosstalk of a MWIR-
LWIR dual band, HgCdTe-based focal plane array (FPA) photodetector (MWIR and LWIR …

Improved intra-pixel sensitivity characterization based on diffusion and coupling model for infrared focal plane array photodetector

L Zhong, X Li, M Zhu, Z Hu, F Chen - Sensors, 2021 - mdpi.com
The high-precision characterization of the intra-pixel sensitivity (IPS) for infrared focal plane
array (FPA) photodetector is of great significance to high-precision photometry and …

Plasmon-enhanced light absorption in mid-wavelength infrared HgCdTe detectors

M Vallone, A Tibaldi, S Hanna… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
Multiphysics modeling of a planar HgCdTe-based mid-wavelength infrared (MWIR) focal
plane array with m-wide pixels enlightens the role of surface plasmon-polaritons observed in …