Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs)

Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs)
Author: Charaev, Ilya
Publisher: KIT Scientific Publishing
Total Pages: 176
Release: 2018-07-31
Genre: Nanowires
ISBN: 3731507455

This work presents a comprehensive investigation of the influence of geometry-dependent factors on performance metrics of superconducting single-photon detectors. With fundamental knowledge, main investigations are focused to extend the spectral bandwidth and to enhance the detection efficiency, especially in infrared range. The developed technology of single-spiral detectors and unconventional electron-beam lithography allows to improve the performance of superconducting detectors.

Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs)

Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs)
Author: Ilya Charaev
Publisher:
Total Pages: 168
Release: 2020-10-09
Genre: Computers
ISBN: 9781013279409

This work presents a comprehensive investigation of the influence of geometry-dependent factors on performance metrics of superconducting single-photon detectors. With fundamental knowledge, main investigations are focused to extend the spectral bandwidth and to enhance the detection efficiency, especially in infrared range. The developed technology of single-spiral detectors and unconventional electron-beam lithography allows to improve the performance of superconducting detectors. 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.

Technology and readout for scaling up superconducting nanowire single-photon detectors

Technology and readout for scaling up superconducting nanowire single-photon detectors
Author: Knehr, Emanuel Marius
Publisher: KIT Scientific Publishing
Total Pages: 200
Release: 2023-03-02
Genre: Technology & Engineering
ISBN: 3731512564

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.

Electrical-field sensitive YBa₂Cu₃O₇₋ₓ detectors for real-time monitoring of picosecond THz pulses

Electrical-field sensitive YBa₂Cu₃O₇₋ₓ detectors for real-time monitoring of picosecond THz pulses
Author: Raasch, Juliane
Publisher: KIT Scientific Publishing
Total Pages: 226
Release: 2019-04-23
Genre: Technology (General)
ISBN: 3731507862

This work investigates the capability of the high-temperature superconductor YBCO to sense the evolution of the electrical field of THz pulses. A deposition process for ten unit-cell thin films and a sub-μm patterning process were developed to enable high sensitivities. The detector response to THz exctiations and its electrical-field sensitivity were studied. This unique characteristic allows for the investigation of instabilities of the THz radiation emitted from synchrotron storage rings.

Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications

Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications
Author: Buchholz, Alexander
Publisher: KIT Scientific Publishing
Total Pages: 246
Release: 2022-07-27
Genre: Technology & Engineering
ISBN: 3731511940

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.

Evaluation of the Use of Superconducting 380 kV Cable

Evaluation of the Use of Superconducting 380 kV Cable
Author: Kottonau, Dustin
Publisher: KIT Scientific Publishing
Total Pages: 138
Release: 2020-11-03
Genre: Technology & Engineering
ISBN: 373151026X

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.

Design of a superconducting DC wind generator

Design of a superconducting DC wind generator
Author: Liu, Yingzhen
Publisher: KIT Scientific Publishing
Total Pages: 228
Release: 2020-11-18
Genre: Technology & Engineering
ISBN: 373150796X

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.