28 Oct
2015
28 Oct
'15
10:08 a.m.
Please post and forward to your groups
CENTER FOR EXCITONICS Seminar Series
Ultrafast Nanoplasmonics: Toward Coherently Controlled Chemistry at the Time-space Limit
November 3, 2015 at 4:30 PM/ RLE Haus 36-428
Tamar Seideman
Department of Chemistry, Northwestern University, Illinois
[seideman]
Electronics has long reached the molecular scale; not only do single-molecule junctions
exhibit interesting conduction behaviors that have no analog in macroscopic electronics,
they can also be tailored to induce a variety of fascinating dynamical processes in the
molecular moiety, with potential applications ranging from new forms of molecular machines
and new modes of conduction, to new directions in surface nanochemistry and
nanolithography. Nevertheless, the application of light to control molecular motions and
electronic transport in junctions may offer advantages, since photonic (by contrast to
electronic) sources allow (sub)femtosecond time resolution and tunable phase and
polarization properties. One of several challenges, however, is the requirement of
coherent light sources that are tightly localized in space. It is here that plasmonics
offer an opportunity.
In the talk, I will combine plasmonics physics with concepts and tools borrowed from
coherent, strong field control of molecular dynamics with two goals in mind. One is to
introduce new function into nanoplasmonics, including ultrafast elements and broken
symmetry elements. The second is to develop coherent nanoscale sources and apply them to
control both mechanical motions and electric transport in the nanoscale. Focusing on the
combination with molecules, I will discuss ongoing research on plasmon-exciton
interactions in the strong coupling limit. To conclude the talk, I will return to
nanoelectronics, and illustrate the application of plasmonics to control of transport in
the nanoscale, with a view to ultrafast electric switches.
Tamar Seideman is a Dow Chemical Company Professor in Chemistry and a Professor of Physics
at Northwestern University. She received a B.Sc. degree (summa cum laude) in 1982 from the
Tel-Aviv University, a M.Sc. (summa cum laude) in 1985 from the Weizmann Institute of
Science, and a Ph.D. (summa cum laude) in 1990 from the Weizmann Institute of Science. She
is a member of the National Academy of Science of Germany, a Fellow of the American
Physical Society, a Guggenheim Fellow, a Member of the Willard Gibbs Award Jury, (elected
July 2013), a member at large of the Division of the Atomic, Molecular and Optical Physics
of the APS, and a member of the Atomic and Molecular Physics Committee of the National
Academies. Her research was recognized with numerous international awards and honors,
including a Wetson Award (2015-2018), a Mildred Dresselhaus Award for Senior Scientists
(2013 first recipient), a Sackelr Award (2011), a senior A. von Humboldt Award
(2004-2009), a Weston Award (2007-2009), an Emerson Award (1996-1997), a Wegner Award
(1996), a Brener award, a J.F. Kennedy award, a Fulbright Research Award, a Chaim Weizmann
Fellowship, the Knesset of Israel Award Prize, a Galilei Distinguished Lecturer Award, and
a Windsor Distinguished Lecturer Award. She is the author of 245 refereed publications.
Among Seideman's research interests are quantum transport, current-driven
nanochemistry and molecular machines; ultrafast nanoplasmonics and information guidance in
the nanoscale; approaches to solar energy conversion; coherent control and coherence
spectroscopies in isolated molecules and in dissipative media; attosecond science and the
interaction of matter with intense laser fields; photomanipulation of external and
internal molecular modes; and mathematical method development.
The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S.
Department Of Energy,
Office Of Science And Office Of Basic Energy Sciences
