Real Time Imaging Systems For Superconducting Nanowire Single Photon Detector Arrays

Author : Hofherr, Matthias
Publisher : KIT Scientific Publishing
Page : 216 pages
File Size : 51,5 Mb
Release : 2014-09-26
Category : Technology & Engineering
ISBN : 9783731502296

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Real-time imaging systems for superconducting nanowire single-photon detector arrays by Hofherr, Matthias Pdf

Superconducting nanowire singe-photon detectors (SNSPD) are promising detectors in the field of applications, where single-photon resolution is required like in quantum optics, spectroscopy or astronomy. These cryogenic detectors gain from a broad spectrum in the optical and infrared range and deliver low dark count rates and low jitter times. This thesis improves the understanding of the detection mechanism of SNSPDs and intodruces new and promising multi-pixel readout concepts.

Author : Matthias Hofherr
Publisher : Unknown
Page : 208 pages
File Size : 53,7 Mb
Release : 2020-10-09
Category : Science
ISBN : 1013279603

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Real-time Imaging Systems for Superconducting Nanowire Single-photon Detector Arrays by Matthias Hofherr Pdf

Superconducting nanowire singe-photon detectors (SNSPD) are promising detectors in the field of applications, where single-photon resolution is required like in quantum optics, spectroscopy or astronomy. These cryogenic detectors gain from a broad spectrum in the optical and infrared range and deliver low dark count rates and low jitter times. This thesis improves the understanding of the detection mechanism of SNSPDs and intodruces new and promising multi-pixel readout concepts. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Author : Knehr, Emanuel Marius
Publisher : KIT Scientific Publishing
Page : 200 pages
File Size : 40,8 Mb
Release : 2023-03-02
Category : Technology & Engineering
ISBN : 9783731512561

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Technology and readout for scaling up superconducting nanowire single-photon detectors by Knehr, Emanuel Marius Pdf

This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a frequency-multiplexing scheme to operate multiple detectors with a reduced number of lines, and the integration of SNSPDs with free-form polymer structures to achieve efficient optical coupling onto the active area of the detectors.

Author : Schmidt, Wolfgang-Gustav Ekkehart
Publisher : KIT Scientific Publishing
Page : 240 pages
File Size : 44,7 Mb
Release : 2020-07-09
Category : Science
ISBN : 9783731509806

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Superconducting Nanowire Single-Photon Detectors for Quantum Photonic Integrated Circuits on GaAs by Schmidt, Wolfgang-Gustav Ekkehart Pdf

Author : Raasch, Juliane
Publisher : KIT Scientific Publishing
Page : 228 pages
File Size : 48,7 Mb
Release : 2019-04-23
Category : Electronic
ISBN : 9783731507864

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Electrical-field sensitive YBa₂Cu₃O₇₋ₓ detectors for real-time monitoring of picosecond THz pulses by Raasch, Juliane Pdf

Author : Charaev, Ilya
Publisher : KIT Scientific Publishing
Page : 178 pages
File Size : 45,6 Mb
Release : 2018-07-31
Category : Nanowires
ISBN : 9783731507451

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Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs) by Charaev, Ilya Pdf

Author : Gyuráki, Roland
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 47,6 Mb
Release : 2022-02-24
Category : Science
ISBN : 9783731510642

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Fluorescent thermal imaging method for investigating transient effects in high-temperature superconductor tapes and coils by Gyuráki, Roland Pdf

This work presents the development and application of high-speed fluorescent thermal imaging for quench analysis in high-temperature superconductors (HTS). Using a fluorescent coating, with a temperature-dependent light emission, temperature changes can be calculated over 2D surfaces. The technique uncovered peculiar transient effects in novel HTS tape architectures and also helped to verify and better understand hot spot development in both insulated and non-insulated, HTS–wound pancake coils.

Author : Merker, Michael
Publisher : KIT Scientific Publishing
Page : 230 pages
File Size : 53,5 Mb
Release : 2019-12-17
Category : Technology & Engineering
ISBN : 9783731509707

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Superconducting integrated THz receiver by Merker, Michael Pdf

Author : Hellmann, Sebastian
Publisher : KIT Scientific Publishing
Page : 218 pages
File Size : 51,8 Mb
Release : 2020-01-10
Category : Technology & Engineering
ISBN : 9783731508045

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Research and Technology Development on Superconducting Current Limiting Transformers by Hellmann, Sebastian Pdf

Author : Kottonau, Dustin,Shabagin, Eugen,De Sousa, Wescley,Geisbüsch, Jörn,Noe, Mathias,Staggo, Hanno,Fechner, Simon,Woiton, Hannes,Küsters, Thomas
Publisher : KIT Scientific Publishing
Page : 138 pages
File Size : 42,8 Mb
Release : 2020-11-03
Category : Technology & Engineering
ISBN : 9783731510260

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Evaluation of the Use of Superconducting 380 kV Cable by Kottonau, Dustin,Shabagin, Eugen,De Sousa, Wescley,Geisbüsch, Jörn,Noe, Mathias,Staggo, Hanno,Fechner, Simon,Woiton, Hannes,Küsters, Thomas Pdf

Diese Studie führt eine Auslegung von supraleitenden Kabeln für die Anwendung im 380-kV-Drehstromnetz durch und erläutert allgemeine Aspekte des Einsatzes solcher Kabel im Höchstspannungsnetz. Dabei vergleicht sie die Supraleitungstechnologie unter vielen verschiedenen Kriterien mit anderen Leitungstechnologien. - This study describes the design of superconducting cables for use in the 380 kV three-phase network and explains general aspects of the use of such cables in the extra-high voltage grid. It compares the superconducting technology with other line technologies under many different criteria.

Author : Liu, Yingzhen
Publisher : KIT Scientific Publishing
Page : 228 pages
File Size : 53,6 Mb
Release : 2020-11-18
Category : Technology & Engineering
ISBN : 9783731507963

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Design of a superconducting DC wind generator by Liu, Yingzhen Pdf

The trend towards larger power ratings of wind turbines asks for innovations in power generation, which requires lower weight and cost, smaller size, higher efficiency and reliability. Due to high current-carrying capability and no DC losses of superconductors, a superconducting wind generator can have a superior power to weight/volume ratio with high efficiency. The work in the book mainly focuses on the feasibility study and design of a superconducting DC wind generator.

Author : Preuß, Alan
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 47,7 Mb
Release : 2021-01-14
Category : Technology & Engineering
ISBN : 9783731510413

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Development of high-temperature superconductor cables for high direct current applications by Preuß, Alan Pdf

A design process for HTS DC cables was developed for high current applications. Based on the design process, a 35 kA HTS DC cable demonstrator was developed. The superconducting elements of the demonstrator were manufactured and tested individually at 77 K. Afterwards, the demonstrator cable was assembled and tested at 77 K. The assembled demonstrator successfully reached 35 kA at 77 K and self field conditions.

Author : Godfrin, Aurélien
Publisher : KIT Scientific Publishing
Page : 146 pages
File Size : 47,9 Mb
Release : 2022-05-10
Category : Technology & Engineering
ISBN : 9783731510963

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AC Losses in High-Temperature Superconductor Tapes and Cables for Power Applications by Godfrin, Aurélien Pdf

This work focuses on two topics. The first is the investigation of producing filaments on copper-stabilized coated conductors, with striations made after or before electroplating the tape. The second topic is the applicability of the striations for reducing the AC losses of cables, in particular the CORC® and RACC cables, which are made with high-temperature superconductor (HTS) striated tapes.

Author : Buchholz, Alexander
Publisher : KIT Scientific Publishing
Page : 246 pages
File Size : 48,8 Mb
Release : 2022-07-27
Category : Technology & Engineering
ISBN : 9783731511946

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Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications by Buchholz, Alexander Pdf

High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, superconductors require constant cooling. This study aims at identifying the environmental impacts of the application of superconductors in future grid technologies such as superconducting power cables.

Author : Otten, Simon J.
Publisher : KIT Scientific Publishing
Page : 208 pages
File Size : 42,7 Mb
Release : 2019-05-13
Category : Technology & Engineering
ISBN : 9783731509042

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Characterisation of REBCO Roebel cables by Otten, Simon J. Pdf

This work concerns the characterization of high-temperature superconducting REBCO Roebel cables for use in accelerator magnets. The effects of bending, torsion and compressive stress on the cable are investigated. The second part concerns the effect of inter-strand resistance on the cable properties. A two-parameter model is proposed to describe inter-strand connections and predict the effect on AC loss and stability. Additionally, the AC loss and stability are experimentally investigated.