Optimization of Hot-Electron Bolometers for THz Radiation PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Optimization of Hot-Electron Bolometers for THz Radiation PDF full book. Access full book title Optimization of Hot-Electron Bolometers for THz Radiation by Axel Stockhausen. Download full books in PDF and EPUB format.
Author: Axel Stockhausen Publisher: KIT Scientific Publishing ISBN: 3731500663 Category : Technology & Engineering Languages : en Pages : 152
Book Description
Hot-electron bolometers are fast and low noise radiation detectors which can be used for many different applications. The aim of this work was to optimize the fabrication process of hot-electron bolometers and gain a deeper understanding of the underlying processes. To achieve this, the fabrication of the superconducting thin films was optimized and the superconducting properties of the films were analyzed. Detectors fabricated using the results showed a record value for the noise temperature.
Author: Axel Stockhausen Publisher: KIT Scientific Publishing ISBN: 3731500663 Category : Technology & Engineering Languages : en Pages : 152
Book Description
Hot-electron bolometers are fast and low noise radiation detectors which can be used for many different applications. The aim of this work was to optimize the fabrication process of hot-electron bolometers and gain a deeper understanding of the underlying processes. To achieve this, the fabrication of the superconducting thin films was optimized and the superconducting properties of the films were analyzed. Detectors fabricated using the results showed a record value for the noise temperature.
Author: Frank Quix Publisher: Routledge ISBN: 9781000035742 Category : Business & Economics Languages : en Pages : 0
Book Description
In today's turbulent business environment, maintaining and optimizing retail strategies are of crucial importance. Retail Marketing is a complete guide to how retailing works in the non-food sector. Focusing on operational applications of retailing, this textbook puts students on the inside track to success in the fast-moving retail industry. This new edition offers an integrated approah to internet and cross-channel retailing and adds new material on lost sales and market research in addition to coverig new research. Retail Marketing is a comprehensive textbook for students in this area and provides the perfect overview for anyone interested in this vital industry.
Author: Petra Thoma Publisher: KIT Scientific Publishing ISBN: 3731500701 Category : Science Languages : en Pages : 192
Book Description
For the analysis and optimization of the picosecond pulsed terahertz radiation generated by electron storage rings or other pulsed sources, ultra-fast detectors are required which are able to resolve picosecond dynamic processes directly in the time domain. In this book, a new direct terahertz detector technology based on the high-temperature superconductor YBa2Cu3O7-x has been developed which opens new routes in the analysis of picosecond time-domain processes with a wide dynamic range.
Author: Krueger, Philipp Publisher: KIT Scientific Publishing ISBN: 3731501856 Category : Science Languages : en Pages : 245
Book Description
Hysteretic loss optimisations through numerical simulation and subsequent experimental confirmation in transport current and background field measurements: ferromagnetic shielding and topological geometry optimisation is used to reduce energy dissipation in HTS coated conductor geometries. Single tapes and coil geometries are investigated. A 3D model capable of taking into account contact resistances is also presented for the Twisted Stacked Tape Conductor cable.
Author: Hofherr, Matthias Publisher: KIT Scientific Publishing ISBN: 3731502291 Category : Technology & Engineering Languages : en Pages : 216
Book Description
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: Raasch, Juliane Publisher: KIT Scientific Publishing ISBN: 3731507862 Category : Technology (General) Languages : en Pages : 226
Book Description
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.
Author: Gyuráki, Roland Publisher: KIT Scientific Publishing ISBN: 3731510642 Category : Science Languages : en Pages : 194
Book Description
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: Buchholz, Alexander Publisher: KIT Scientific Publishing ISBN: 3731511940 Category : Technology & Engineering Languages : en Pages : 246
Book Description
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: Godfrin, Aurélien Publisher: KIT Scientific Publishing ISBN: 3731510960 Category : Technology & Engineering Languages : en Pages : 146
Book Description
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: Axel Stockhausen
Author: Axel Stockhausen
Author: Frank Quix
Author: Petra Thoma
Author: Krueger, Philipp
Author: Merker, Michael
Author: Hofherr, Matthias
Author: Raasch, Juliane
Author: Gyuráki, Roland
Author: Buchholz, Alexander
Author: Godfrin, Aurélien