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Prof. Mona Jarrahi

Prof. Mona  Jarrahi

Associate Professor of Electrical Engineering
University of California Los Angeles

Terahertz Electronics Laboratory
Engineering IV Bldg.
420 Westwood Plaza
Los Angeles CA 90095
United States

tel: 310 206-1371
fax: 310 825-8282
E-mail: mjarrahi@ucla.edu
Web: http://www.seas.ucla.edu/~mjarrahi/index.html

Area of Expertise

Terahertz Optoelectronics, Imaging and Spectroscopy Systems & Microwave Photonics

Biography

Mona Jarrahi received her B.S. degree in Electrical Engineering from Sharif University of Technology in 2000 and her M.S. and Ph.D degrees in Electrical Engineering from Stanford University in 2003 and 2007. She served as a Postdoctoral Scholar at University of California Berkeley from 2007 to 2008. After serving as an Assistant Professor in University of Michigan Ann Arbor, she joined UCLA in 2013 as an Associate Professor of Electrical Engineering and the Director of the Terahertz Electronics Laboratory. Prof. Jarrahi has made significant contributions to the development of ultrafast electronic/optoelectronic devices and integrated systems for terahertz/millimeter-wave sensing, imaging, computing, and communication systems by utilizing novel materials, nanostructures, and quantum well structures as well as innovative plasmonic and optical concepts. In recognition of her outstanding achievements, Prof. Jarrahi has received several prestigious awards in her career including the Presidential Early Career Award for Scientists and Engineers (PECASE); Early Career Award in Nanotechnology from the IEEE Nanotechnology Council; Outstanding Young Engineer Award from the IEEE Microwave Theory and Techniques Society; Booker Fellowship from the United States National Committee of the International Union of Radio Science (USNC/URSI); Grainger Foundation Frontiers of Engineering Award from National Academy of Engineering; Young Investigator Awards from the Army Research Office (ARO), the Office of Naval Research (ONR), and the Defense Advanced Research Projects Agency (DARPA); Early Career Award from the National Science Foundation (NSF); the Elizabeth C. Crosby Research Award from the University of Michigan; and best-paper awards at the International Microwave Symposium and International Symposium on Antennas and Propagation.

Lecture Title(s)

Plasmonic Terahertz Optoelectronics for Advanced Terahertz Imaging and Sensing

Although unique potentials of terahertz waves for chemical identification, material characterization, biological sensing, medical imaging, and communication 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 talk, I will describe some of the recent advancements in terahertz technology enabled by a fundamentally new plasmonic device technology developed in our group that mitigates performance limitations of existing terahertz systems. In specific, I will introduce new designs of high-performance photoconductive terahertz sources and detectors that utilize plasmonic antennas to offer three orders of magnitude enhancement in terahertz radiation efficiency and two orders of magnitude enhancement in terahertz detection sensitivity, respectively. I will describe that the unique capabilities of these plasmonic antennas enable developing terahertz transmitters and heterodyne receivers with record-high power levels of several milliwatts and single-photon detection sensitivities over a broad terahertz bandwidth at room temperature, 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 sources are commercially available. Therefore, our results pave the way to compact and low-cost terahertz imaging, spectrometry, and communication systems that could offer numerous opportunities for e.g., medical imaging and diagnostics, atmospheric sensing, pharmaceutical quality control, security screening, and high data rate communication systems.

 

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Hillenkamp 2017


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