APS, MTT, and AES Distinguished Lecturer Meeting Dec-18-2013
Raoul Ouedraogo
APS, MTT, and AES societies are pleased to announce that IEEE distinguished lecturer Prof. Levent Gürel is flying out from Turkey to give a lecture on using parallel multilevel fast multipole algorithm to solve large-scale problems involving dielectric and composite metamaterial structures.
Date: Wednesday, December 18, 2013
Time: 6pm --- Refreshments @ 5.30pm
MIT Lincoln Laboratory A-Café
Title: Parallel-MLFMA Solutions of Large-Scale Problems Involving Dielectric and Composite Metamaterial Structures
Abstract:
It is possible to solve extremely large electromagnetics problems
accurately and efficiently by using the multilevel fast multipole
algorithm (MLFMA). This has important implications in terms of obtaining
the solution of previously intractable physical, real-life, and
scientific problems in various areas, such as (subsurface) scattering,
optics, bio-electromagnetics, metamaterials, nanotechnology, remote
sensing, etc. Accurate simulations of such real-life electromagnetics
problems with integral equations require the solution of dense matrix
equations involving millions of unknowns. Most recently, we have
achieved the solution of 670,000,000x670,000,000 dense matrix equations!
For more information, please visit
www.cem.bilkent.edu.tr.
In
this seminar, following a general introduction to integral-equation and
MLFMA formulations of dielectric/composite structures, I will continue
to present rigorous modeling of three-dimensional optical metamaterial
and plasmonic structures that are composed of multiple coexisting
dielectric and/or conducting parts. Such composite structures may
possess diverse values of conductivities and dielectric constants,
including negative permittivity and permeability. Several different
types of integral equations will be presented to investigate which ones
have better conditioning properties. I will mention the development of
effective Schur complement pre-conditioners specifically for dielectric
problems. The hierarchical strategy is used for the efficient
parallelization of MLFMA on distributed-memory architectures.
Furthermore, various challenges encountered during the solution of
complicated real-life problems will be addressed.
Bio:
Prof. Levent Gürel (Fellow of IEEE, ACES, and EMA) is the Director of
the Computational Electromagnetics Research Center (BiLCEM) at Bilkent
University, Ankara, Turkey. He received the M.S. and Ph.D. degrees from
the University of Illinois at Urbana-Champaign (UIUC) in 1988 and 1991,
respectively, in electrical and computer engineering. He joined the IBM
Thomas J. Watson Research Center, Yorktown Heights, New York, in 1991.
Since 1994, he has been a faculty member in the Department of Electrical
and Electronics Engineering of the Bilkent University, Ankara, where he
is currently a Professor and Director. Among the recognitions of Prof.
Gürel's accomplishments, the two prestigious awards from the Turkish
Academy of Sciences (TUBA) in 2002 and the Scientific and Technological
Research Council of Turkey (TUBITAK) in 2003 are the most notable. He is
conferred the UIUC ECE Distinguished Alumni Award in 2013. Prof. Gürel
is currently serving as an associate editor of Radio Science, IEEE
Antennas and Wireless Propagation Letters (AWPL), JEMWA, PIER, and ACES
Journals. He is named an IEEE Distinguished Lecturer for 2011-2013 and
invited to address the 2011 ACES Conference as a Plenary Speaker.
For more information, contact Raoul Ouedraogo at Raoul.o...@ll.mit.edu
(Thanks to the Boston Photonics Society for the following directions.)
From interstate I-95/Route 128: Take Exit 31B onto Routes 4/225 towards Bedford - Stay in right lane; Use Right Turning Lane (0.3 mile from exit) to access Hartwell Ave. at 1st Traffic Light.; Follow Hartwell Ave. to Wood St. (~1.3 miles); Turn Left on to Wood Street and Drive for 0.3 of a mile.; Turn Right into MIT Lincoln Lab, at the Wood Street Gate.
From Exit 30B: Take Exit 30B on to Route 2A - Stay in right lane; Turn Right on to Mass. Ave (~ 0.4 miles - opposite Minuteman Tech.).; Follow Mass. Ave for ~ 0.4 miles.; Turn Left on to Wood Street and Drive for 1.0 mile.
Turn Left into MIT Lincoln Lab, at the Wood Street Gate.