de
en
Schliessen
Detailsuche
Bibliotheken
Projekt
Impressum
Datenschutz
de
en
Schliessen
Impressum
Datenschutz
zum Inhalt
Detailsuche
Schnellsuche:
OK
Ergebnisliste
Titel
Titel
Inhalt
Inhalt
Seite
Seite
Im Dokument suchen
Silicon-based systems for microscopic and volumetric terahertz imaging / by Philipp Hillger from Wuppertal, Germany. Wuppertal, April 2020
Inhalt
Abstract
Zusammenfassung
Context
Introduction
Central Research Questions and Contributions
Thesis Structure
Terahertz Imaging and Sensing
Contrast in Terahertz Imaging
Macroscopic Electrodynamics
Absorption and Dispersion
Reflection and Transmission at Material Boundaries
Wave-Matter Interaction Phenomena in the THz Band
Application: Breast Cancer Margin Assessment
Spatial Resolution in Terahertz Imaging
Limitations of Far-Field Imaging
Breaking the Diffraction Limit
Review of Contemporary THz Technology
Review of THz Near-Field Imaging Methods
Traditional THz Technology
Silicon Technology for THz Systems
THz Components in Silicon Technology
Far-Field Imaging
Frequency-Doubler-Based 0.43 THz Source for Active Far-Field Imaging
Design Considerations
Implementation
Experimental Characterization
Summary and Conclusions
3D Terahertz Imaging Based on Computed Tomography
Fundamentals of Computed Tomography
THz Computed Tomography with Silicon-Based Components
Experimental Setup
Imaging Results
Discussion
Summary and Conclusions
Near-Field Imaging
THz Near-Field Sensing in Silicon Technology
Resonator-Based Sensing in Planar Technology
Perturbation Theory
Planar SRRs for Imaging
Incoherent Sensing Concept
Concept Description
Sensor Illumination
Power Detection
Figure-of-Merits
Single-Pixel THz Near-Field Sensors
Cross-Bridged Double Split-Ring Resonator
On Imaging and Practicability
Summary
Modeling of Cross-Bridged Double Split-Ring Resonators
Modeling of the Sensing Strips
Response to Varying Material Properties
Response to Spatial Object Displacements
Modeling of the Resonator Topology
Analysis of the Object-Induced Frequency Shift
Parameter Extraction
Model Validation
Discussion
Sensor Response Ambiguity
Considerations for Practical Applications
A THz Near-Field Sensor System-on-a-Chip in SiGe-HBT Technology
A Scalable Front-End for THz Near-Field Sensors
A 1D Multi-Pixel Architecture
Design of a Shielded Wilkinson Power Splitter Network
Impact of Parasitic Cross-Coupling Effects
Design and Implementation of the SoC
System-on-a-Chip Architecture
Triple-Push Illumination Source
Power Detection Circuits
Analog Signal Processing
Digital Interfacing and ASIC
SoC Reference Generation
Sensor Module
Packaging
Module and Electronic Periphery
Experimental Characterization
Oscillator Breakout Measurements
Measurement of the Lateral Resolution
Analog Read-Out
Measurement of the Response Decay-Rate
Measurement of Pixel Cross-Coupling
Impact of Process Variations
Digital Read-Out
Imaging Experiments
Imaging of a Human Fingerprint
Imaging of a Nickel Grid
Imaging of Breast Tissue
Summary and Conclusion
Conclusion
Thesis Summary
Summary and Conclusions
Future Directions
Bibliography