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New Frontiers in Terahertz Technology

Hosted By: Optoelectronics Technical Group

10 April 2024 14:00 - 15:00

Although unique potentials of terahertz waves for chemical identification, material characterization, biological sensing, and medical imaging have been recognized for quite a while, the relatively poor performance, higher costs, and bulky nature of current terahertz systems continue to impede their deployment in field settings. In this webinar, Mona Jarrahi will describe some of her recent results on developing fundamentally new terahertz electronic/optoelectronic components and imaging/spectrometry architectures to mitigate the performance limitations of existing terahertz systems.

Specifically, Prof. Jarrahi will introduce new designs of high-performance photoconductive terahertz sources that utilize plasmonic nanoantennas to offer terahertz radiation at record-high power levels of several milliwatts – demonstrating more than three orders of magnitude increase compared to the state of the art. Dr. Jarrahi will describe that the unique capabilities of these plasmonic nanoantennas can be further extended to develop terahertz detectors and heterodyne spectrometers with quantum-level detection sensitivities over a broad terahertz bandwidth at room temperatures, which has not been possible through existing technologies. To achieve this significant performance improvement, plasmonic antennas and device architectures are optimized for operation at telecommunication wavelengths, where very high power, narrow linewidth, wavelength-tunable, compact and cost-effective optical sources are commercially available.

Subject Matter Level: Advanced - Assumes a strong understanding of the topic

What You Will Learn:
• Use of plasmonic nanoantennas in terahertz (THz) optoelectronics to enable medical imaging and diagnostics, atmospheric sensing, pharmaceutical quality control, and security screening systems.
• High performance THz passive component design based on novel reconfigurable meta-films.

Who Should Attend:
•Researchers and industry personal working on THz optoelectron

About the Presenter: Mona Jarrahi from University of California Los Angeles

Prof. Mona Jarrahi M.S. and Ph.D. degrees in Electrical Engineering from Stanford University in 2003 and 2007, respectively. Following her tenure as a Postdoctoral Scholar at the University of California Berkeley from 2007 to 2008, Prof. Jarrahi served as an Assistant Professor at the University of Michigan Ann Arbor. In 2013, she joined the University of California Los Angeles, where she currently holds the position of Professor. Her pioneering work in ultrafast electronic and optoelectronic devices, employing novel materials and quantum structures, has significantly impacted terahertz, infrared, and millimeter-wave technologies. Prof. Jarrahi's research, showcased in over 300 publications and 270 invited talks, has garnered attention from prestigious scientific news outlets, including Huffington Post, Popular Mechanics, EE Times, and IEEE Spectrum. As a Fellow of IEEE, OPTICA, SPIE, APS, and IoP, Prof. Jarrahi continues to contribute to the field, exemplifying excellence in academia.


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