Sökning: "down conversion"
Visar resultat 1 - 5 av 115 avhandlingar innehållade orden down conversion.
1. Visionära planer och vardagliga praktiker : Postmilitära landskap i Östersjöområdet
Sammanfattning : In the years after WWII the Baltic Sea Area developed into an area strongly divided between East and West. Because of the tensions between the blocs, the coastal areas where strongly militarized and prepared for war. LÄS MER
2. Millimeter and Sub-Millimeter Wave Integrated Active Frequency Down-Converters
Sammanfattning : In recent years, the increasing amount of data transmission, the need for automotiveradars, and standoff imaging for security applications are the main factors that accelerateresearch in the millimeter and sub-millimeter wave frequency ranges. The semiconductorindustries have continuously developed their processes, which have opened upopportunities for manufacturing monolithically integrated circuits up to a few hundredGHz, based on transistor technologies. LÄS MER
3. Nanostructured Semiconductor Materials for Light Manipulation Functions
Sammanfattning : Structuring of semiconductor materials is utilized in many optoelectronic devices, e.g, in order to make them more efficient, cost-effective, and/or to obtain specific wavelength-engineered responses. Semiconductor materials are widely used in optoelectronic devices due to their favorable optical and electric properties. LÄS MER
4. Charge-Spin Conversion and Electronic Transport in Two-Dimensional Materials and van der Waals Heterostructures
Sammanfattning : Applications related to artificial intelligence (AI), 5G communication, cloud computing, Internet of Things (IoT) will necessitate wide range of data collection, communication and processing. Current charge-based technology using conventional materials suffers adverse effects with down-scaling the device size and has limited efficiency in meeting the future demands for computation and data storage. LÄS MER
5. Photonic quantum information and experimental tests of foundations of quantum mechanics
Sammanfattning : Entanglement is a key resource in many quantum information schemes and in the last years the research on multi-qubit entanglement has drawn lots of attention. In this thesis the experimental generation and characterisation of multi-qubit entanglement is presented. Specifically we have prepared entangled states of up to six qubits. LÄS MER