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Researchers design next-generation photodetector

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Northwestern University researchers have developed a new approach to quantum device design that has produced the first gain-based long-wavelength infrared (LWIR) photodetector using band structure engineering based on a type-II superlattice material.
This new design, which demonstrated enhanced LWIR photodetection during testing, could lead to new levels of sensitivity for next-generation LWIR photodetectors and focal plane array imagers. The work could have applications in earth science and astronomy, remote sensing, night vision, optical communication, and thermal and medical imaging.
Our design can help meet the urgent demand for ultra-sensitive photodetectors, said Manijeh Razeghi, Walter P. Murphy Professor of Electrical and Computer Engineering, who led the study. The architecture uses a unique type-II superlattice material that optimizes LWIR photodetectors to run with low power, higher optical gain, and excellent stability. ....

Manijeh Razeghi , Walterp Murphy , Goddard Space Flight Center , Us Air Force Research Laboratory , Northwestern Center , Us Army Future , Defense Advanced Research Project Agency , Northwestern University , Us Army Night Vision Laboratory , Computer Engineering , Quantum Devices , Night Vision Laboratory , Force Research Laboratory , Space Flight , கோடார்ட் இடம் விமானம் மையம் , எங்களுக்கு அேக படை ஆராய்ச்சி ஆய்வகம் , வடமேற்கு மையம் , எங்களுக்கு இராணுவம் எதிர்கால , வடமேற்கு பல்கலைக்கழகம் , எங்களுக்கு இராணுவம் இரவு பார்வை ஆய்வகம் , கணினி பொறியியல் , குவாண்டம் சாதனங்கள் , இரவு பார்வை ஆய்வகம் , படை ஆராய்ச்சி ஆய்வகம் , இடம் விமானம் ,

Industry collaboration leads to important milestone in the creation of a quantum computer

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IMAGE: (a) Scanning electron image of one of the Foundry-fabricated quantum dot devices. Four quantum dots can be formed in the silicon (dark grey), using four independent control wires (light grey)..
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Credit: Fabio Ansaloni
Quantum computer: One of the obstacles for progress in the quest for a working quantum computer has been that the working devices that go into a quantum computer and perform the actual calculations, the qubits, have hitherto been made by universities and in small numbers. But in recent years, a pan-European collaboration, in partnership with French microelectronics leader CEA-Leti, has been exploring everyday transistors that are present in billions in all our mobile phones for their use as qubits. The French company Leti makes giant wafers full of devices, and, after measuring, researchers at the Niels Bohr Institute, University of Copenhagen, have found these industrially produced devices to be suitable as a qubit ....

Anasua Chatterjee , Fabio Ansaloni , Nature Communications , University Of Copenhagen , Professor At Center , Niels Bohr Institute , Quantum Devices , இயற்கை தகவல்தொடர்புகள் , பல்கலைக்கழகம் ஆஃப் கோபெந்ஹேகந் , ப்ரொஃபெஸர் இல் மையம் , நியீல்ஸ் போஹ்ர் நிறுவனம் , குவாண்டம் சாதனங்கள் ,

Important milestone in the creation of a quantum computer

Important milestone in the creation of a quantum computer
phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.

Anasua Chatterjee , Fabio Ansaloni , Nature Communications , University Of Copenhagen , Professor At Center , Niels Bohr Institute , Quantum Devices , இயற்கை தகவல்தொடர்புகள் , பல்கலைக்கழகம் ஆஃப் கோபெந்ஹேகந் , ப்ரொஃபெஸர் இல் மையம் , நியீல்ஸ் போஹ்ர் நிறுவனம் , குவாண்டம் சாதனங்கள் ,