Essays about: "terahertz measurements"
Found 5 essays containing the words terahertz measurements.
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1. Optimisation of line of sight matching to obtain wind vectors from the SIW satellite
University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknikAbstract : SIW, Stratospheric Inferred Winds, is one of the upcoming Swedish research satellites, aiming to study the winds in the middle atmosphere by measuring the Doppler shifts in molecules such as O3 with a limb viewing sub-mm spectrometer. By conducting simulations on the expected observations, the pointing sensitivity requirement of the satellite was investigated to be able to optimise the matching of the wind vectors. READ MORE
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2. Capacitance Optimization and Ballistic Modeling of Nanowire Transistors
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : Downscaling of Si-based metal-oxide-semiconductor field-effect transistors (MOSFETs) has contributed to increased microchip device density and to improve the functionality of the electronic circuits. The dimensions of state of art MOSFET is down to a few nanometers. It has been demonstrated that smaller MOSFETs are faster and more energy-efficient. READ MORE
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3. Studies of an Electrically Conducting Organic Material: Tetrathiafulvalene-7,7,8,8-Tetracyanoquinodimethane
University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysikAbstract : This thesis aims to investigate the electrical properties of the organic charge transfer complex Tetrathiafulvalene-7,7,8,8-Tetracyanoquinodimethane, TTF-TCNQ. This is done through two different experimental techniques: Hall characterization and terahertz measurements. READ MORE
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4. Planar Antennas for Terahertz Detectors
University essay from Avdelningen för elektronik, matematik och naturvetenskapAbstract : The use of the millimeter-wave and terahertz (THz) systems are becoming very important in various scientific and military applications. In many applications i.e. radio-astronomy, THz imaging, remote sensing, secure communication links, THz radars, plasma diagnostics etc. READ MORE
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5. Analysis and optimasation of quantum cascade structures
University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysikAbstract : The quantum cascade laser (QCL) is a semiconductor heterostruc- ture using inter sub-band transitions to generate stimulated emission. The quantum cascade detector (QCD) is a similar to the QCL, but the heterostructure is tailored to absorb radiation and give a read-out current. READ MORE