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Jagadishwar R. Sirigiri

Jagadishwar R. Sirigiri, (S 1999, M 2003, SM 2013) is founder of Bridge12 Technologies, Inc. and serves as its President and Chief Operating Officer.
He has a M.S. and Ph.D. in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology, Cambridge, MA.

Dr. Sirigiri has over two decades of experience in experimental and theoretical aspects of microwave engineering, vacuum electron devices and terahertz technology. Previously, he was a Research Scientist at MIT where he was the leader of the experimental program on high power microwave and terahertz source development including gyrotrons and other types of sources for application in Dynamic Nuclear Polarization (DNP) in Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR), fusion plasma heating and radar. He has conducted theoretical and experimental research on Photonic Band Gap (PBG) structures and Metamaterials (MTM).

Dr. Sirigiri's research resulted in several accomplishments including the experimental demonstration of > 50% efficiency in a megawatt class gyrotron for plasma heating application; theoretical and experimental research on After Cavity Interaction (ACI) in gyrotrons and its effect on efficiency; theoretical and experimental work on the low frequency oscillations in megawatt gyrotron oscillators; development of tunable continuous wave gyrotron oscillators in the millimeter wave and terahertz range and their successful application in high field DNP-NMR spectroscopy; development of high power high frequency gyrotron traveling wave tube (gyro-TWT) amplifiers at 140 GHz for applications in radar and electron EPR. He demonstrated the first vacuum electron device (gyrotron) with a photonic band gap (PBG) structure to suppress mode competition while operating in a higher order mode. Dr. Sirigiri is a Senior Member of the IEEE, and a member of the American Physical Society and Sigma-Xi.

He served as a guest editor of the Twelfth Special Issue on High Power Microwave Generation of the IEEE Transactions on Plasma Sciences in 2008. He is a member of the executive committee of the International Vacuum Electronics Conference (IVEC).

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