Search for dissertations about: "Thin film circuits"

Showing result 1 - 5 of 35 swedish dissertations containing the words Thin film circuits.

2. 1. Thin Films and Component Technologies for Low-Noise Terahertz Electronics

   Author : Dimitar Milkov Dochev; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; THz electronics; SIS; tunnel junctions; Nb3Al; NbN; thin film; hot electron bolometer; microwave circuits; superconductor; epitaxial film;

   Abstract : 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. READ MORE

4. 2. Electrolyte-Gated Organic Thin-Film Transistors

   Author : Lars Herlogsson; Magnus Berggren; Hagen Klauk; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organic electronics; Thin-film transistor; Organic semiconductor; Polymer; Electrolyte; Polyelectrolyte; Electronics; Elektronik;

   Abstract : There has been a remarkable progress in the development of organic electronic materials since the discovery of conducting polymers more than three decades ago. Many of these materials can be processed from solution, in the form as inks. READ MORE

5. 3. Nanophotonic devices in thin film lithium niobate

   Author : Alessandro Prencipe; Katia Gallo; Val Zwiller; Mohammed Amin Baghban; Rachel Grange; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Integrated optics; Electro-optics; Thin film lithium niobate; Phase shifted Bragg grating; Waveguide-integrated single photon detectors; Erbium implantation; Integrerad optik; elektrooptik; tunnfilmslitiumniobat; fasfo ̈rskjutet Bragg-gitter; V ̊agledare-integrerade singelfotondetektorer; Erbiumimplantation.; Optics and Photonics; Optik och fotonik;

   Abstract : Photonic devices play a fundamental role in today’s society and are a central building blocks for numerous applications, ranging from modern internet to sensing and manufacturing, and photonics is foreseen to be the backbone of future quantum internet and quantum communication systems thanks to the long coherence time of light. At variance with electronic integrated circuits, where silicon has been the material of election for many decades, in the case of photonic integrated circuits (PICs) there are numerous options available for the material substrate. READ MORE

6. 4. Improved components for 2SB THz receivers with enhanced sideband rejection performance

   Author : Hawal Marouf Rashid; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thin-film Circuits; S-parameters Measurements; Sideband Separating Receivers; Superconducting Circuits; Millimetre Wave Mixers; Directional Coupler; Terahertz Technology; Waveguide Directional Coupler;

   Abstract : The thesis presents work done in improving the sideband rejection ratio for 2SB cryogenic radio astronomy receivers in general, but more specifically, for the future Onsala 20 m 3-mm receiver system and the ALMA Band 5. In order to attain better than 15 dB sideband rejection ratio over the entire bandwidth (approximately 26% RF fractional bandwidth and one octave the IF bandwidth), it is necessary to improve both RF and IF hybrid assembly to optimum performance, i. READ MORE

7. 5. Thin Film Electroacoustic Devices for Biosensor Applications

   Author : Gunilla Wingqvist; Ilia Katardjiev; Anita Lloyd Spetz; Kirsi Tappura; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik; Elektronik; Electronics;

   Abstract : Biosensors are today important devices within various application areas. In this thesis a new type of label-free biosensor device is studied, which is fabricated using the same processes used for the fabrication of integrated circuits. This enables tighter integration and further sensors/biosensor miniaturization. READ MORE