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people: A. Passian
Dr. Ali Passian
Dr. Ali Passian is a researcher with the Nanoscale Science and Devices
Group at the Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee.
He received a Master of Science degree in physics in January 1993 from the
Royal Institute of Technology in Stockholm, Sweden with a thesis work related to fusion
plasma spectroscopy carried out at the Plasma Fusion and Science Center
at the Massachusetts Institute of Technology, Cambridge, Massachusetts.
He then joined the Manne Siegbahn Institute for Atomic Physics in Stockholm Sweden, where he studied the
atomic life times in XeII. Thereafter, he worked at the physics department
of the Stockholm University until May 1994 when he joined the
Department of Physics and Astronomy of the University of Tennessee.
In August 2000 he received his Ph.D. in physics for his work related to
collective electronic effects in Scanning Probe Microscopy carried out at
ORNL.
Dr. Passian’s current research interests include:
Surface physics, in particular those relating to
collective electronic behavior, surface plasmons, optical modes (near field
phenomena, photon tunneling, plasmon interference, localized field enhancement),
photon scanning tunneling microscopy (PSTM).
Electrodynamic modeling and simulation, Finite
Difference Time Domain (FDTD), Finite Elements.
Surface plasmon assisted coupling (SPAC),
photothermal spectroscopy, thermal lensing.
Application of integral transforms in potential
theory, in particular those pertaining to Mehler-Fock, and
Lebedev-Kontorovich transforms.
Microscale flow phenomena, in particular those
occurring in the non-continuum regime, in moderate-high Knudsen number
range, and thermal transpiration systems.
Linear and non-linear dynamical systems, in
particular those described by functional differential equations such as
Delay Differential Equations (DDE).
Microcantilever research.
Selected publications
L. Broström, S. Mannervik, A. Passian,
and G. Sundström, “Investigation of Some Transitions and Lifetimes in
XeII,” Phys. Rev. A 49 (5), 3333-3337 (May 1994).
F. Meriaudeau, T. R. Downey, A. Passian, A. Wig, and T. L. Ferrell,
“Environmental effects on surface plasmon spectra in gold island films
potential for sensing applications,” Applied Optics 37 (34), 8030-8037
(1998).
A. Passian, A. Wig, F. Meriaudeau, M. Buncick, T. Thundat and T. L.
Ferrell, “Electrostatic force density for a scanned probe above a charged
surface,” J. Appl. Phys. 90 (2), (2001).
A. Passian, G. Muralidharan, S. Kouchekian,
A. Mehta, S. Cherian, T. L. Ferrell, and T. Thundat, “Dynamics of
self-driven microcantilevers,” J. Appl. Phys. 91 (7), (2002).
A. Passian, H. Simpson, and T. L. Ferrell, “On the orthogonality of the
MacDonald's functions,” In review process in Journal of Mathematical
Analysis and Applications (JMAA), (2003).
A. Passian, R. J. Warmack, T. L. Ferrell, and T. Thundat, “Thermal transpiration
at microscale: A Crookes cantilever,” Phys. Rev. Lett. 90 (12), 124503
(2003).
A. L. Lereu, A. Passian, T. L. Ferrell, and T. Thundat, “Effect of
thermal variations on the Knudsen forces in the transitional regime,” Appl.
Phys. Lett. 84 (6), 1013 (Feb. 2004).
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