“National Science Foundation Career Award: Optically Inspired Electronics ”
The continuous development of high performance integrated circuits has led to an explosion in the communication and computation systems. However the main challenge is that the limited transistor cut-off frequency, maximum power efficiency, and breakdown voltage pose serious constraints on the use of conventional circuit techniques. The objective of Prof. Afshari's research is to design and demonstrate integrated circuits that can generate signals at terahertz frequencies and process information at tens of giga-samples per second with low power consumption in standard silicon processes. The approach is based on intriguing wave propagation phenomena and applying them to nonlinear or inhomogeneous electrical media. The research is focused on developing a new method of circuit design when the devices operate close to or even beyond their maximum unity power gain frequency. The main contribution is to demonstrate fundamentally novel high frequency signal generation and processing systems with orders of magnitude better performance in terms of maximum output power, operating frequency, power efficiency, and bandwidth compared to the existing methods.
Prof. Afshari was born in Tehran, Iran in 1979. He received the B.S. degree in Electronics Engineering from the Sharif University of Technology, Tehran, Iran and the M.S. and Ph.D. degree in electrical engineering from the California Institute of Technology, Pasadena, in 2003, and 2006, respectively. In August 2006, he joined the faculty in Electrical and Computer Engineering at Cornell University.