Events

Invited Research Lecture: An Optical-Waveguide Mode-Solver Based on Source-Model Technique

Date: 13 Apr 2009 - 13 Apr 2009

Venue: SIMTech Training Rooms, Tower Block, Level 3

Abstract
This session presents a mode-solver based on the Source-Model Technique (SMT) for the analysis of the modal fields of optical waveguides. The formulation is for a general cylindrical waveguide made of a piecewise homogeneous dielectric or plasmonic material. The mode solver also includes a friendly graphical user interface. The speaker will discuss and explain the advantages of the SMT, as well as its limitations, compared to other methods that have been applied to the analysis of optical waveguides, including a modified singularity measure used to circumvent the problem of spurious solutions.

Topics include:
-  Creating an adaptive search algorithm capable of handling degenerate and nearly-degenerate modes, which was implemented in the proposed mode-solver
-  Demonstrating the capability of this adaptive search algorithm to handle degenerate and nearly-degenerate modes  
-  A few examples of the application of the SMT, including various solid and hollow-core photonic crystal fibers, suspended core fibres, nearly
   touching fibrers, and plasmonic nanowire waveguides

About the Speaker
Prof Leviatan received BSc and MSc degrees in electrical engineering from the Technion-Israel Institute of Technology, Haifa, in 1977 and 1979, respectively. He obtained his PhD degree in electrical engineering from Syracuse University, Syracuse, NY, in 1982 and spent the 1982/83 academic year as an Assistant Professor at Syracuse University and subsequently joined the Department of Electrical Engineering at the Technion, where at present he is a Professor and the incumbent of the Joseph and Sadie Riesman Chair in Electrical Engineering. During his tenure at the Technion he held short-term visiting positions at Cornell University, the Swiss Federal Institute of Technology (ETH) in Zurich, the Catholic University of America, the University d'Aix-Marseilles III, the University of Washington, Bell Laboratories, the University of Michigan, Purdue University, and the University of Illinois Urbana-Champaign. During 1989-1991, while on sabbatical leave from the Technion, he was with the Department of Electrical Engineering and Computer Science at The George Washington University as a Distinguished Visiting Professor. Prof Leviatan's research interests include computational methods applied to antennas, electromagnetic wave scattering, and microwave as well as optical guiding structures. He has published more than 100 journal papers and is listed among ISI's Highly Cited Researchers. He also presented numerous papers at international symposia. A Fellow of the IEEE and a member of Commission B of the International Union of Radio Science, Prof Leviatan is a recipient of the 2001 Henry Taub Prize for Excellence in Research.

Programme
2.45 pm    Registration

3.00 pm    Presentation by Prof Leviatan

3.45pm     Refreshments and Networking

Who Should Attend
Industry professionals, research scientists, engineers, academic staff and engineering and science students

Registration
Registration for this lecture is free of charge. Seats are available on a first-come, first served basis.

Enquiries
For technical enquiries: Dr Yu Xia, Precision Measurements Group, Email: xyu@SIMTech.a-star.edu.sg

For general enquiries: Alice Koh, Email: kohth@scei.a-star.edu.sg