Friday Afternoon Seminar
We meet every Friday at 5PM in either the Graduate Lounge (A Floor Bridge) or in S240.
We get our pizza from Fratelli's Italian Eatery, a fantastic New York Pizza joint, and if you have requests for specific varieties please feel free to ask.
|September 22nd||Hassan Arbab||Terahertz Time-Domain Spectroscopic and Polarimetry Techniques for Biomedical Imaging and Non-Destructive Testing Applications||In this seminar, we will first review the key concepts relevant to the generation and detection of terahertz electromagnetic waves in a standard Terahertz Time-Domain Spectroscopy (THz-TDS) setup, namely emissions from photoconductive antennas, non-linear optical rectification, and gas-plasma sources. We will further discuss a new class of plasmonic large-area high-power sources that can deliver up to 1 mW in the terahertz range custom-made for our biomedical imaging applications. We will then introduce a new variation of the THz-TDS technique, recently invented in our group, dubbed Terahertz Time-Domain Polarimetry (THz-TDP), which allows for real-time measurement of the polarization direction of the terahertz field without the need for any external polarizers. Finally, we will explore applications of both THz-TDS and THz-TDP techniques in biomedical imaging and non-destructive testing (NDT) in aerospace and pharmaceutical industries. The goal is to introduce the diverse set of terahertz imaging projects currently being pursued in the new Terahertz Biophotonics Lab.|