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Boston University Electrical & Computer Engineering
Full Title: Multimedia Power Management on a Platter: From Audio, to Video and Games
Speaker: Samarjit Chakraborty, Technical University of Munich
Abstract:
Multimedia applications today constitute a sizable workload that needs to be supported by a host of mobile devices ranging from cell phones, to PDAs and portable game... consoles. Battery life is a major design concern for all of these devices. In this talk I will discuss some of our recent efforts towards developing application-specific power management schemes for a variety of multimedia applications.
About the Speaker:
Samarjit Chakraborty is a Professor of Electrical Engineering at the Technical University of Munich, where he heads the Institute for Real-Time Computer Systems. He obtained his Ph.D. in Electrical and Computer Engineering from ETH Zurich in 2003. Prior to joining TU Munich, from 2003 -- 2008 he was an Assistant Professor of Computer Science at the National University of Singapore. His research interests are primarily in system-level power/performance analysis of real-time and embedded systems.
Boston University Electrical & Computer Engineering
Speaker: Stefan Maier, Imperial College London
Abstract:
Nanoplasmonics provides an avenue for the marriage between photonics and nanotechnology, and is on its way to being developed into highly disruptive technologies, impacting all areas where the manipulation of light is a prominent ingredient. This talk will focus o...n plasmonic designer nanocavities exhibiting both bright and “dark” optical modes. I will show how very general phenomena from classical oscillator physics, such as sub- and superradiance and Fano interference phenomena can be implemented on the nanoscale using plasmonics, and outline how these concepts will enable new opportunities for plasmonics in optoelectronics. The second part will focus on implementations of plasmonics in the low-frequency regime of the spectrum, particularly in the THz window, in the form of ultrathin broadband surface waveguides and other “plasmon spoofing” devices.
About the Speaker:
Stefan Maier is a Professor of Nanophotonics, in the Experimental Solid State Group, Physics Department, Imperial College London, UK where he is also co-director of the Centre for Plasmonics & Metamaterials. He obtained his Ph.D. in Applied Physics from teh California Institute of Technology in 2003. Prior to joining the Imperial College, he was a lecturer in the Department of Physics at the University of Bath. His research interests are primarily in nanophotonics, plasmonics, metamaterials, photonic nanoscience, photonic biosensing, near-field microscopy, electromagnetic simulations.
EC500 – High Performance Computing with Multicore and GPUs Faculty: Prof. Martin Herbordt Mon/Wed 2-4PM This is an incredibly exciting time in computer engineering with processors getting very complex, but few programmers having the knowledge to use them effectively. ...
Prof. Lev Levitin Prof. Tommaso Toffoli Constant advances in technology may make it seem like computing power has infinite potential, but two ECE professors have determined that one day processors will hit an ultimate speed limit...
Boston University Electrical & Computer Engineering
Full title: Negative Index Metamaterials and Their Applications to Sub-diffraction Imaging and Infrared Light Harvesting
Speaker: Gennady Shvets, University of Texas at Austin
Abstract:
A MetaMaterial is a man-made medium constructed out of carefully engineered building blocks (unit cells) that has electromagnetic propert...ies unattainable in natural materials. One such property is the negative refractive index which requires that both the dielectric permittivity and negative permeability turn negative. Negative refractive index dramatically alters many well-known phenomena such as the Snell’s Law, Doppler Effect, and the Abbe’s Limit on the resolution of a microscope. While the possibility of negative index materials (NIMs) has been theoretically predicted 1960’s by a Soviet physicist Victor Veselago, there were fabricated and tested only during the past decade, and mainly in the microwave part of the electromagnetic spectrum. Because most exciting applications are found in the optical part of the spectrum, there is considerable effort aimed at developing optical NIMs [2] and using them to beat the Abbe’s diffraction limit. One of the main challenges is to make a metamaterial exhibiting optical magnetism. I will review the progress in the field and the role of plasmonics in building nanostructured NIMs. Our theoretical and experimental efforts aimed at developing mid-infrared NIMs and superlenses will be described. Experimental demonstration of a near-field super-lens in the mid-infrared (around 11 microns) range will be described. The lens is implemented using crystalline SiC films that have remarkable infrared properties: they support surface polaritons with less damping than most metals. Both amplitude and phase-sensitive imaging is demonstrated. It is also demonstrated that super-lensing can be used for sub-surface imaging with a λ/20 [1] spatial resolution. Applications to biologically-relevant imaging through water in nanofluidic channels will be discussed, as well as new approaches to imaging the near field using far-field diagnostics (Far-field SuperLens). Applications of metamaterials to harvesting infrared radiation [3] and mid-infrared index sensing will also be reviewed.
About the Speaker:
Gennady Shvets is an Associate Professor of Physics at The University of Texas at Austin. He received his PhD in Physics from MIT in 1995. He has been on the Physics faculty at the University of Texas at Austin since 2004. Previously he has held research positions at the Princeton Plasma Physics Laboratory and the Fermi National Accelerator Laboratory, and was on the faculty of the Illinois Institute of Technology. His research interests include nano-photonics, meta-materials with exotic optical properties (especially negative index), near field optics, laser processing of materials on a nanoscale, and advanced particle accelerators. He is the author or coauthor of more than 100 papers in the refereed journals, including Science, Nature Physics, Nature Materials, Physical Review Letters, and Applied Physics Letters. Dr. Shvets was a Department of Energy Postdoctoral Fellow in 1995-96. He was a recipient of the Presidential Early Career Award for Scientists and Engineers in 2000. His research is supported by DOE, NSF, DARPA, AFOSR, and ARO.
Professor Shvets is one of the pioneers in the emerging fields of Negative Index Metamaterials (NIM). He is part of the DARPA-funded team lead by the Boeing Phantom Works Corporation investigating NIMs-based ultra-compact antennas and near-field imaging devices. He has also contributed to developing and experimentally implementing the concept of the Perfect Lens based on polaritonic materials. Perfect Lens enables imaging of sub-wavelength objects in the in infrared part of the spectrum, including objects buried under the surface. This work was published in the journal Science in 2006. Professor Shvets also pioneered the concept of Sub-wavelength Plasmonic Crystals and developed their applications to sub-wavelength Negative Index Materials in the optical part of the spectrum. With his collaborators, he developed novel techniques for analyzing optical properties of plasmonic nanostructures, including band-structure calculations of periodic plasmonic nanostructures and quasi-static calculations of plasmonic resonances. His recent work deals with the applications of metamaterials to infrared light harvesting, index sensing in mid-infrared, nonlinear and “slow-light” devices, and chiral metamaterials.
Boston University Electrical & Computer Engineering A belated addition to the ECE website:
www.bu.edu
Boston University
Boston University Electrical & Computer Engineering Miscellaneous photos pulled from the ECE Department archives.
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Prof. Ayse Coskun Department of Electrical & Computer Engineering Assistant Professor Ayse Coskun recently received the “Best Paper Award” at the 17th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2009. Th...
Prof. Paschalidis Prof...
Prof. Ayse Coskun Department of Electrical & Computer Engineering Assistant Professor Ayse Coskun recently received the “Best Paper Award” at the 17th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2009. Th...
Boston University Electrical & Computer Engineering We are looking for new faculty candidates. For details: http://www.bu.edu/ece/about/employment/
