Sökning: "uncooled"
Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet uncooled.
1. Efficient 1.3 mm GaInNAs Quantum Well Lasers for Uncooled, High Speed Operation
Sammanfattning : The rapid expansion of tele and data transmission systems requires an ever increasing capacity in modern optical fibre communication networks. With the implementation of short distance, high density networks, such as access networks, there is a need for cost-effective optical transmitters compatible with single mode fibres. LÄS MER
2. Micromachined epitaxial colossal mognetoresistors for uncooled infrared bolometer
Sammanfattning : High quality perovskite manganites, La1-xAxMnO3 (A = Ca, Sr, Ba) are very attractive materials due to their great application potential for magnetic memory, uncooled infrared (IR) microbolometer and spintronics devices. This thesis presents studies of the growth and material characterization (including structural, electrical, magnetic and noise) of epitaxial manganite films on Si and GaAs. LÄS MER
3. Electrical Noise in Colossal Magnetoresistors and Ferroelectrics
Sammanfattning : .... LÄS MER
4. Low frequency noise in thin film colossal magnetoresistors
Sammanfattning : .... LÄS MER
5. High performance materials and processing technology for uncooled 1.3 μm laser diodes
Sammanfattning : This thesis investigates different material systems and processing technology for high temperature compatible laser diodes used in volume applications within the 1.3-μm telecom wavelength window. LÄS MER