Sökning: "THz electronics"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden THz electronics.
1. Thin Films and Component Technologies for Low-Noise Terahertz Electronics
Sammanfattning : This thesis deals with several distinct subjects such as thin film deposition, design, fabrication and characterization of components for low-noise THz electronics.High energy-gap superconducting materials are of specific importance for low-noise THz mixer applications. LÄS MER
2. Graphene FET terahertz detectors on flexible substrates
Sammanfattning : Terahertz (THz) science and technology have developed rapidly over the past decades, extending the THz application areas from spectroscopy and earth and space sciences to communications, biomedicine and security sensing. Many of these emerging applications require shape-conforming, light-weight and low-cost detectors rather than existing solid-state detection technology. LÄS MER
3. Characterisation and modelling of graphene FET detectors for flexible terahertz electronics
Sammanfattning : Low-cost electronics for future high-speed wireless communication and non-invasive inspection at terahertz frequencies require new materials with advanced mechanical and electronic properties. Graphene, with its unique combination of flexibility and high carrier velocity, can provide new opportunities for terahertz electronics. LÄS MER
4. Design and characterisation of terahertz Schottky diode harmonic mixers
Sammanfattning : Efficient, compact, and reliable terahertz frequency converters preferably operating at ambient temperature are crucial for stabilising far-infrared optical sources. This thesis focuses on the design and characterisation of terahertz Schottky diode harmonic mixers for frequency stabilisation of quantum-cascade lasers. LÄS MER
5. Growth and Characterization of Nb3Al Thin Films for Low-Noise Terahertz Electronics
Sammanfattning : Demand on ultimately sensitive heterodyne receivers for, e.g., radio astronomy and environmental science instrumentation, has driven large research activities on novel materials and devices for extending the frequency range into the THz domain. LÄS MER