ECE Colloquium - March 1

Dr. Nicolas Madamopoulos
The City College of New York

Friday, March 1, 2013 - 10:00am - 11:00am

CoRE Building Lecture Hall

Title:    Selective "Light" Redirection For Information Processing and Energy Conservation


Processing “light” provides solutions in medical systems, metrology, telecommunications, industrial and environmental sensing, energy and sustainable environment. In this lecture, two examples of selective “light” redirection for signal processing and energy conservation will be presented. In the first example, the development of a tunable-bandwidth optical filter for applications in telecommunications, sensors and RF/microwave signal processing is described. The approach is based on an all-fiber-optic dynamically tunable Michelson-Gires-Tournois Interferometer (MGTI) that incorporates broadband fiber-optic based loop mirrors. These fiber loop mirrors provide a wide range of tunable relativity (e.g., 0-100%) and enable a variety of transfer functions, such as notch, rectangular pass-band and comb filters using the same basic platform. The second example highlights a more “classical” optical system that enables windows to become from the weakest link the in building envelope and energy “losers”, to energy managers and potentially energy “suppliers”. The concept is based on an active façade implementation for selective redirection of incoming solar radiation with a dual goal to harvest (a) the visible part of the spectrum for efficient daylighting and (b) the thermal energy of the incoming solar radiation for heating/cooling assistance. Both of these goal lead to reduced energy consumption, reduced carbon footprint and increased occupant comfort.


Dr. N. Madamopoulos is an Associate Professor in the Department of Electrical Engineering at the City College of New York (CCNY), of the City University of New York (CUNY). He is leading the research and educational efforts at the Optics and Photonics Systems Laboratory. He is also the Assistant Director of the Building Performance Lab, CUNY Institute for Urban Systems. Before joining CCNY, he held various Senior Research positions in the industry (Corning, Inc, Lucent – Bell Labs, Calient Networks) and research institutions (National Hellenic Research Foundation; Foundation For Research and Technology-Hellas, Department of Electrical and Computer Engineering -UCSB, The School of Optics/CREOL). His work has been widely recognized and honored with several international awards by the OSA, IEEE, and SPIE.

Professor Madamopoulos received a BS in Physics from the University of Patras, Greece, in 1993, a M.Sc. and a Ph.D. degree in Optical Science and Engineering from The College of Optics & Photonics/CREOL (Center for Research and Education in Optics and Lasers), University of Central Florida, in 1996 and 1998, respectively.