Physics

# Physics Department Current Events

Wednesday, April 2, 2014
04:00 PM to 05:00 PM -- MR418N
Physics Colloquium

Ioannis Kymissis
Associate Professor, Electrical Engineering
Columbia University SEAS

"Electronics on anything"

Silicon electronics have revolutionized the processing and handling of information.  The high temperatures required to create crystalline
silicon devices, however, has limited their application to sensing systems that work in a small and mechanically rigid
form factor.  The development of inorganic and organic thin film electronics has launched a revolution in electronics, granting
the ability to process electronically active materials at low temperatures for a range of new functionalities.
Our work focuses on the use of thin film systems to create new functionalities that are otherwise unavailable for a variety of applications in sensing, actuation, and energy conversion. I'll highlight three projects in particular that have led to the founding of small businesses that have been launched by former students and post-docs in a range of application areas including energy use monitoring and efficiency, spectral measurement, and display devices.  I'll explain how each one got started in the lab, the path each one is taking, and in general how an engineering research model can help translate research into new high technology companies.

Ioannis (John) Kymissis is an electrical engineer teaching at Columbia University. His area of specialization is solid state electronics and device fabrication. He graduated with his SB, M.Eng., and Ph.D. degrees from MIT, and after working as a post-doc and at QDVison, joined the faculty at Columbia University in in 2006. John has won a number of awards for his work, including the NSF CAREER award, the IEEE EDS Paul Rappaport award, the Vodaphone Americas Foundation Wireless Innovation Award, and several other foundation, corporate, and best paper awards. He is the editor in chief of the Journal of the Society for Information Display and is the technical program general chair for the 2014 Device Research Conference.

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Thursday, April 03, 2014
12:00 PM - CUNY Graduate Center, 365 Fifth Avenue, New York, NY

Felix Gross Endowment Award to Assistant Professor Cory Dean.
The ceremony will take place on Thursday, April 3, beginning at noon in
the 9th Floor Skylight room.

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Friday, April 04, 2014
02:00 PM to 03:00 PM, Marshak Science Building, Room 329
High Energy Seminar

Jorge Gamboa
Professor of Physics at Universidad de Santiago de Chile

"Cosmic Neutrino Background and Spin-Spin Interactions"

Abstract: If cosmic background neutrinos interact very weakly with each other, through spin-spin interactions, then   they may have experienced a phase transition, leading to a ferromagnetic ordering. The small magnetic field resulting from ferromagnetic ordering  -- if present before galaxy formation -- could act as a  primordial seed of the magnetic fields observed in several galaxies. Our findings suggest that the magnetization could occur in the right epoch, if the exchange gauge boson of neutrino-neutrino interaction is a massless boson beyond the Standard Model, with a coupling constant of $2.2\times 10^{-13} \left(\frac{m_\nu}{10^{-4}\,\rm{eV}}\right)^2<g<2.3\times 10^{-7}$.

Ioannis Kymissis, Associate Professor, Electrical Engineering, Columbia University SEAS

Jorge Gamboa, Professor of Physics at Universidad de Santiago de Chile