Data and Time |
January 16, 2009, 3:15-4:15 PM |
Location |
Bahen Center for Information Technology (BA), Room 1180 |
Host |
Payam Abolghasem |
Superluminal Pulses from a Detection-Theoretic Point of View
Levent Kayili
The Edward S. Rogers Sr. Department of Electrical and Computer Engineering (Electromagnetics)
Abstract:
There has been recent interest in electromagnetic pulses propagating at
superluminal (faster-than-light) velocities. Yet, there has also been
confusion about which velocity is superluminal. Surely, it could not be the
information velocity that exceeds the speed of light in vacuum or else
Einstein causality would be violated. It is, in fact, the group velocity
that can be superluminal or even negative and this fact has been
demonstrated in experiments at microwave and optical frequencies as well as
in the single-photon limit. Knowing that superluminal information
propagation remains impossible, we would like to explore the practical
usefulness of superluminal or negative group velocities from a detection
theoretic point of view. We will start with microelectronic circuits and
proceed toward optical media for this analysis.
Biography:
Levent Kayili received his B.A.Sc. degree in electrical engineering from the
University of Waterloo in 2007. Currently, he is an M.A.Sc. candidate in the
electromagnetics group. His research interests include the detection
theoretic analysis of superluminal and negative group delays/velocities for
microelectronic circuits as well as optical media.
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