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Now showing items 831-840 of 2111
Strong coupling of optical modes in photonic molecules with CdTe nanocrystals
(2005)
We present a detailed study of the localized coupled-cavity modes in a photonic molecule formed
from two dielectric spherical microcavities with CdTe nanocrystals. A layer-by-layer deposition technique
provides controllable ...
Ordered polyhedral foams in tubes with circular, triangular and square cross-section
(2011)
Soap bubbles of equal volume readily crystallize as ordered polyhedral foam structures when introduced into tubes whose width is of the same order as the bubble diameter. In the past a large number of these structures have ...
The structure and flow of disordered wet foams
(Trinity College (Dublin, Ireland). School of Physics, 2014)
This thesis concerns the structure and flow properties of wet foams. We primarily use computer simulations of soft particles to model the behaviour of disordered wet foams. We investigate the properties of 2D and 3D polydis- ...
Transient Inhomogeneous Ionic Solutions -The Influence of the Magnetic Field Gradient
(Trinity College Dublin. School of Physics. Discipline of Physics, 2022)
Solutions of paramagnetic ions and their response to magnetic field gradients of permanent magnets were studied. Paramagnetic fluids confined by solid walls only develop internal flows in a magnetic field gradient when a ...
Probing surface and interface structure using optics
(2010)
Optical techniques for probing surface and interface structure are introduced and recent developments in the field are discussed. These techniques offer significant advantages over conventional surface probes: all pressure ...
Measuring Dynamic Structural Changes of Nanoparticles at the Atomic Scale Using Scanning Transmission Electron Microscopy
(2020)
We propose a new method to measure atomic scale dynamics of nanoparticles from experimental high-resolution annular dark field scanning transmission electron microscopy images. By using the so-called hidden Markov model, ...
Soft x-ray spectroscopic investigation of ferromagnetic Co-doped ZnO
(2006)
The electronic properties of cobalt-doped ZnO were investigated through site-selective and
element-sensitive x-ray-absorption spectroscopy in the vicinity of the Co L2,3 edge, the oxygen K
edge, and at the Zn L3 edge. ...
Generation of continuously tuneable fractional optical orbital angular momentum using internal conical diffraction
(2010)
Abstract: When a left-circularly polarised Gaussian light beam, which has
spin angular momentum (SAM) Jsp = ?? = 1? per photon, is incident along
one of the optic axes of a slab of biaxial crystal it undergoes internal ...