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Superconducting nanowire single electron detector

Michaël Rosticher, F. R. Ladan, J. P. Maneval +6 more

WE REPORT THE DETECTION OF SINGLE ELECTRONS USING A 6 NM-THICK, 100 NM-WIDE, NB0.7TI0.3N SUPERCONDUCTING STRIP DEPOSITED ON A SIOX/SI SUBSTRATE. WHEN BIASED SLIGHTLY BELOW THE CRITICAL CURRENT, A MEANDER-SHAPED DEVICE, NOT ONLY DETECTS SINGLE PHOTONS, BUT ALSO COUNTS THE SINGLE KEV ELECTRONS ISSUED FROM A SCANNING ELECTRON MICROSCOPE (SEM) WITH AN EFFICIENCY APPROACHING UNITY. THE RESPONSE TIME IS SHORT ENOUGH TO DISCRIMINATE THE INCIDENT ELECTRONS FROM THOSE BACKSCATTERED FROM THE UNDERLYING MATERIAL. IT IS THEREFORE POSSIBLE TO MAP THE ELECTRON DETECTIVITY AS WELL AS THE PHOTON DETECTIVITY ON THE SAME DEVICE. A CLEAR CORRELATION BETWEEN THE TWO MEASUREMENTS IS OBSERVED, WITH A SUPERIOR SPATIAL RESOLUTION THOUGH (AROUND 100 NM) FOR THE SEM MAPPING. IT ILLUSTRATES THE POTENTIAL USE OF THIS SINGLE ELECTRON MAPPING BY THE SEM METHOD TO CHARACTERIZE THE DETECTION HOMOGENEITY OF SSPDSWE REPORT THE DETECTION OF SINGLE ELECTRONS USING A 6 NM-THICK, 100 NM-WIDE, NB0.7TI0.3N SUPERCONDUCTING STRIP DEPOSITED ON A SIOX/SI SUBSTRATE. WHEN BIASED SLIGHTLY BELOW THE CRITICAL CURRENT, A MEANDER-SHAPED DEVICE, NOT ONLY DETECTS SINGLE PHOTONS, BUT ALSO COUNTS THE SINGLE KEV ELECTRONS ISSUED FROM A SCANNING ELECTRON MICROSCOPE (SEM) WITH AN EFFICIENCY APPROACHING UNITY. THE RESPONSE TIME IS SHORT ENOUGH TO DISCRIMINATE THE INCIDENT ELECTRONS FROM THOSE BACKSCATTERED FROM THE UNDERLYING MATERIAL. IT IS THEREFORE POSSIBLE TO MAP THE ELECTRON DETECTIVITY AS WELL AS THE PHOTON DETECTIVITY ON THE SAME DEVICE. A CLEAR CORRELATION BETWEEN THE TWO MEASUREMENTS IS OBSERVED, WITH A SUPERIOR SPATIAL RESOLUTION THOUGH (AROUND 100 NM) FOR THE SEM MAPPING. IT ILLUSTRATES THE POTENTIAL USE OF THIS SINGLE ELECTRON MAPPING BY THE SEM METHOD TO CHARACTERIZE THE DETECTION HOMOGENEITY OF SSPDS

Aug 1, 20100 citations

Is it Possible to Observe Orbitals? On the Problems of Observability and Reality of Theoretical Entities

Paweł Zeidler

Filozofia NaukiJan 1, 20100 citations

Wprowadzenie do algorytmów kwantowych. Problemy współczesnej nauki. Teoria i zastosowanie.

Krzysztof Giaro, Marcin Kamiński

Celem tej pracy jest prezentacja kwantowego modelu obliczen. Szczegolny nacisk polozono na zagadnienia matematyczne i informatyczne. Zadbano o wyjaśnienie podstaw teoretycznych, podanie pelnych dowodow poprawności algorytmow kwantowych oraz szacowanie zlozoności obliczeniowej.

Jan 1, 20030 citations

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Eric R. Scerri

IMPERIAL COLLEGE PRESS eBooksJun 1, 20083 citations

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ELIZABETH A. RAUSCHER

This document was prepared as an account of

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On the alleged non-existence of orbitals

Peter Mulder

Studies in History and Philosophy of Science Part B Studies in History and Philosophy of Modern PhysicsApr 22, 201012 citations

IS IT POSSIBLE TO OBSERVED ORBITALS? ON THE PROBLEMS OF OBSERVABILITY AND REALITY OF THEORETICAL ENTITIES (Czy mozna zaobserwowac orbitale? O problemie obserwowalnosci i realnosci przedmiotów teoretycznych)

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