Sökning: "photodetectors"
Visar resultat 1 - 5 av 24 uppsatser innehållade ordet photodetectors.
1. PERFORMANCE OF THE PHOTODETECTOR FOR THE ACTIVE SHIELD OF THE COSI SPACE TELESCOPE
Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknikSammanfattning : The COmpton Spectrometer and Imager (COSI) is a space telescope that aims to study the soft gamma regime (0.2-5 MeV), capable of performing spectroscopy, imaging and polarimetry of cosmic gamma sources. LÄS MER
2. Heat dissipation due to microvibrations in low temperature experiments
Master-uppsats, KTH/FysikSammanfattning : Ultra-sensitive photodetectors on-board space missions need very low temperatures to keep a good resolution. Cryo-coolers, such as pulse-tubes, help maintaining these conditions within a cryostat. In return however, they generate micro-vibrations. LÄS MER
3. Sputtering of High Quality Layered MoS2 films
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronikSammanfattning : We have deposited bulk, monolayer and few-layers as well as large-scale 2D layered MoS2 thin films by pulsed DC magnetron sputtering from an MoS2 target. MoS2 has gained great attention lately, together with other layered Transition Metal Dichalcogenides (TMDCs), for its unique optical and electrical properties with thickness-dependent bandgap. LÄS MER
4. Investigating Optical-Field-Induced Currents in GaN using Ultrafast Lasers
Magister-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionenSammanfattning : This study saw the development of an experimental setup capable of generating and measuring optical-field-induced currents in a variety of nanodevices fabricated specifically for this project. Each device design features two metallic contacts, closely separated by about 5 micrometers, deposited onto a semiconductor or insulator substrate. LÄS MER
5. I-V and Optical Characterization of InP/InAsP Quantum Disc-in-Nanowire Infrared Photodetectors
Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologiSammanfattning : Photodetectors are semiconductor devices capable of converting optical signals into electrical signals. There is a wide range of applications for photodetectors such as fiber optics communication, infrared heat camera sensors, as well as in medical and military equipment. LÄS MER