Sökning: "slot wavelengths"
Hittade 5 avhandlingar innehållade orden slot wavelengths.
1. Planar Quasiparticle Mixer Structures for Millimeter and Sub-Millimeter Wave Receivers
Sammanfattning : The paper covers various aspects of integrating planar antennas with superconducting mixers in the millimeter and sub-millimeter wave regime. The construction of an 80-100 GHz tapered slot antenna and SIS mixer chip with a minimum double side band noise temperature of 240 K is described. LÄS MER
2. Integrated Optical Slot-Waveguide Ring Resonator Sensor Arrays for Lab-on-Chip Applications
Sammanfattning : This thesis treats the development of an integrated optical sensor array. The sensors are slot-waveguide ring resonators, integrated with on-chip surface grating couplers and light splitters, for alignment tolerant, real-time, refractive index sensing, and label-free biosensing. LÄS MER
3. A Study on Abrasive Waterjet Milling
Sammanfattning : Abrasive waterjets (AWJ) have in a short time become an indispensable industrial tool for many machining operations involving hard-to-machine materials. In general, the process is used for through-cutting but there is an awakening interest in utilizing the process for three-dimensional machining, or milling. LÄS MER
4. Development and Application of Single-Ended Picosecond Laser Diagnostics
Sammanfattning : Light detection and ranging (lidar), a method for nonintrusive, single-ended, and range resolved measurements, has been developed and applied for combustion related diagnostics. Employing picosecond laser pulse durations and detectors providing temporal resolution on the order of picoseconds, lidar has been applied successfully for both quantitative temperature- and species concentration measurements, obtaining an ultimate range resolution of 0. LÄS MER
5. Integration of Planar Antennas with MMIC Active Frontends for THz Imaging Applications
Sammanfattning : In recent years, there has been constant growth in using THz frequencies or mm, sub- mm wavelengths for various applications such as: Astronomy, Atmospheric studies, security, bio-medical imaging. All these applications are now seen more feasible due to rapid enhancements of semi-conductor processing technologies. LÄS MER