Ultra-subwavelength resonators for high temperature high performance quantum detectors

Autor: Daniele Palaferri, Yanko Todorov, Alireza Mottaghizadeh, Giulia Frucci, Giorgio Biasiol, Carlo Sirtori

Publikováno v: New Journal of Physics, Vol 18, Iss 11, p 113016 (2016)

In this article we have investigated two important properties of metallic nano-resonators which can substantially improve the temperature performances of infrared quantum detectors. The first is the antenna effect that increases the effective surface

Externí odkaz: https://doaj.org/article/884f2833229a482e82fad08d7170e1a6

Room-Temperature, Wide-Band, Quantum Well Infrared Photodetector for Microwave Optical Links at 4.9 μm Wavelength

Autor: Etienne Rodriguez, Jérôme Faist, Carlo Sirtori, Alireza Mottaghizadeh, Angela Vasanelli, Daniele Palaferri, Yanko Todorov, Qi Jie Wang, Djamal Gacemi, Azzurra Bigioli, Zahra Asghari, Mathieu Jeannin, Mattias Beck

Publikováno v: ACS photonics
ACS photonics, American Chemical Society, 2018, 5 (9), pp.3689-3694. ⟨10.1021/acsphotonics.8b00704⟩

High-speed, room-temperature, quantum well infrared photodetectors (QWIPs) at λ ∼ 4.9 μm have been realized in a strain compensated In0.1Ga0.9As/Al0.4Ga0.6As heterostructure grown on a GaAs substrate. The high-speed properties at room temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee14ddab6eeac0f3891104ca967d5051
https://doi.org/10.1021/acsphotonics.8b00704

High sensitivity 9μm metamaterial Infrared QC detectors at 300K

Autor: Djamal Gacemi, Azzurra Bigioli, Giovanni Armaroli, Daniele Palaferri, Edmund H. Linfield, L. Lianhe, Carlo Sirtori, A. Giles Davies, Yanko Todorov, Angela Vasanelli

Publikováno v: 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-1, ⟨10.1109/IRMMW-THz.2019.8874499⟩

Quantum Cascade Detectors are promising devices for high-temperature mid-infrared detection. The responsivity, related to its photovoltaic working principle, still suffers from lower responsivity respect to a photoconductive device such as QWIP. Here

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::954dc6d1b4cb020e3c3a22ec10fcba32
https://doi.org/10.1109/irmmw-thz.2019.8874499

Noise characterization of patch antenna THz photodetectors

Autor: Carlo Sirtori, Yanko Todorov, Alexander Giles Davies, Edmund H. Linfield, Daniele Palaferri, Lianhe Li, Djamal Gacemi, Stefano Barbieri

Publikováno v: Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2018, 113 (16), pp.161105. ⟨10.1063/1.5051580⟩
Applied Physics Letters, 2018, 113 (16), pp.161105. ⟨10.1063/1.5051580⟩

International audience; Current noise fluctuations have been investigated in terahertz (THz) quantum well photodetectors embedded in antenna-coupled photonic architectures and compared with standard substrate-coupled mesa detectors. The noise measure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c421d34e36fc8b8bfc52bbe4dfeb55f
https://hal.archives-ouvertes.fr/hal-02403210

Metamaterial-Enhanced Quantum Infrared Detectors

Autor: Alireza Mottaghizadeh, Carlo Sirtori, Mathieu Jeannin, Djamal Gacemi, Yanko Todorov, Angela Vasanelli, Daniele Palaferri

Publikováno v: 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).

Recent advances on infrared detectors that operate in metamaterial arrays of sub-wavelength metallic resonators are reported. The metallic metamaterial resonators have a quantitative impact on the high temperature detector performance, owe to the com

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75192cb585f97d07ea071e95cb2c68fb
https://doi.org/10.1109/irmmw-thz.2018.8510056