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Computer simulation of functional materials for therapeutic ultrasound applications
(2015-01-13)
Magnetic resonance imaging guided high intensity focused ultrasound is a potential
non-invasive treatment which uses constructive interference patterns to concentrate
ultrasound energy generated by a piezoelectric ...
An ytterbium-doped fiber laser at 1.1 um
(2013-02-12)
A pulsed ytterbium-doped fiber laser is proposed and developed. A length of
samarium-doped fiber was inserted into the laser cavity to induce passive Q-switching.
The laser oscillated in the continuous wave, Q-switched ...
Microscopic modeling of high-field charge transport in amorphous selenium
(2014-01-22)
Avalanche multiplication of charge carriers as a result of successive impact ionization has led to the development of solid state avalanche photo-detectors. Crystalline based avalanche photodiodes have found a variety of ...
Pinning of magnetic vortices subject to multi-well potential in the Ginzburg-Landau theory of superconductivity
(2012-11-10)
I will study the existence of multi-vortex solutions of the Ginzburg-Landau equations with an external potential on R2. These equations model the equilibrium states of superconductors: the external potential, W, represents ...
Tunable high-power fiber laser and its application to produce Brillouin fiber lasers
(2012-11-10)
A tunable continuous wave single-longitudinal-mode fiber laser is proposed and
developed. A saturable absorber, as well as, an all-fiber Fabry-Perot filter was used in the
laser cavity to reduce mode-hopping. The laser ...
Energy states of a hydrogen atom placed between two metal slabs
(1998)
In this thesis, we utilize the hydrodynamical model to evaluate the potential energy and self-energy for an electron and a hydrogen atom placed between two semi-infinite metal slabs. The potentials and self-energies are ...
Photon number density operator
(1995)
A new operator is introduced to represent the density of photons in configuration space. It
has some features in common with operators previously introduced by Mandel and Cook but
has better transformation properties.
The ...
Impurity band conduction in reduced samples of bismuth iron molybdate
(1995)
An experimental investigation of the electrical resistance of n-type bismuth iron
molybdate (Bi3FeMo2012) pellets at temperatures from 90 to 620 K has been made in an
attempt to detect impurity band conduction near room ...
Electron-photon interactions in quantum dots : coupled oscillators
(1995)
A coupled oscillator model is developed for the far infra-red response
of a quantum dot, and this model is used to predict the vacuum-held
Rabi splittings of a dot-cavity system.