Silicon-based Integrated Sensors for Terahertz Applications - From Pulse Sources to Miniaturized Spectrometers

Explore the cutting-edge world of terahertz technology and its applications in this 55-minute NYU Wireless live streaming lecture. Delve into the development of silicon-based integrated sensors with on-chip antennas, focusing on terahertz pulse sources and miniaturized spectrometers. Learn about the paradigm shift in terahertz radiation, its spectroscopy applications, and circuit architecture. Discover the intricacies of prototype assembly, time-domain and frequency-domain characterization, and radiation pattern measurements. Examine gas spectroscopy measurement results and the potential of THz hyper-spectral imaging for medical applications. Explore the differences between wired and wireless systems, beamwidth considerations, and system architecture components. Gain insights into free-space optical synchronization and the development of miniaturized EPR spectrometers. This comprehensive lecture covers circuit details, measurement techniques, and concludes with the latest advancements in terahertz technology and its potential impact on various fields.

Intro
Outline
The Paradigm Shift
Terahertz Radiation: The Last Frontier
Spectroscopy Applications of Terahertz
Circuit Architecture
Circuit Schematic
Prototype Assembly
Time-Domain Characterization Setup
Frequency-Domain Characterization Setup
Frequency-Domain Characterization Results
Radiation Pattern Measurements
Array Chip Micrograph
Gas Spectroscopy Measurement Results
THz Hyper-Spectral Imaging Setup
THz Hyper-spectral Imaging for Medical Applications
Measurement Results - CMOS Array
Chip Micrograph of the CMOS Array
Wired vs. Wireless
Beamwidth versus Aperture Size
System Architecture
Quadrature Generator and Phase Shifter
How to Minimize TX-RX Coupling?
Single-Chip Locking Setup
Single-Chip Locking Measurement
Phase Noise Measurements
Circuit Details
Free-space Optical Synchronization
EPR Spectroscopy • EPR can detected chemicals that have unpaired electrons
Single-Chip EPR Transceiver Architecture -Chip Boundary
First Miniaturized HPHT Inline EPR Spectrometer
Conclusions