60 citations · 106 across the 8 of their papers we have counts for
9 papers
An Approximate Method for Modeling Plasmons on Graphene with Time- and Space-dependent Properties
Kaleigh Rudge, Fadil Santosa
This paper presents approximate computational methods for modeling surface plasmon propagation on a graphene sheet with time- and space-dependent material properties. Starting from…
Temporal control of graphene plasmons
Josh Wilson, Fadil Santosa, Misun Min +1
Electrostatic gating and optical pumping schemes enable efficient time modulation of graphene's free carrier density, or Drude weight. We develop a theory for plasmon propagation i…
Determining anisotropic conductivity using diffusion tensor imaging data in magneto-acoustic tomography with magnetic induction
Habib Ammari, Lingyun Qiu, Fadil Santosa +1
In this paper we present a mathematical and numerical framework for a procedure of imaging anisotropic electrical conductivity tensor by integrating magneto-acoutic tomography with…
Unique determination of the index of refraction from phase-less near-field data in two dimensions
Yat Tin Chow, Fadil Santosa, Gunther Uhlmann
Motivated by non-destructive testing of optical fiber, we consider the problem of determining the index of refraction of a two-dimensional medium from magnitude of the total field…
Analysis of the Magneto-acoustic Tomography with Magnetic Induction (MAT-MI)
Lingyun Qiu, Fadil Santosa
Magnetoacoustic tomography with magnetic induction (MAT-MI) is a coupled-physics medical imaging modality for determining conductivity distribution in biological tissue. The capabi…
A variational approach to the inverse photolithography problem
Luca Rondi, Fadil Santosa, Zhu Wang
Photolithography is a process in the production of integrated circuits in which a mask is used to create an exposed pattern with a desired geometric shape. In the inverse problem o…
A symbol-based algorithm for decoding bar codes
Mark Iwen, Fadil Santosa, Rachel Ward
We investigate the problem of decoding a bar code from a signal measured with a hand-held laser-based scanner. Rather than formulating the inverse problem as one of binary image re…
Analysis of an Inverse Problem Arising in Photolithography
Luca Rondi, Fadil Santosa
We consider the inverse problem of determining an optical mask that produces a desired circuit pattern in photolithography. We set the problem as a shape design problem in which th…
A Topology-Preserving Level Set Method for Shape Optimization
Oleg Alexandrov, Fadil Santosa
The classical level set method, which represents the boundary of the unknown geometry as the zero-level set of a function, has been shown to be very effective in solving shape opti…