Now showing items 1-10 of 76
End-pumped solid-state lasers.
This dissertation consists of four sections, with the focus on near- and mid-infrared lasers using Yttrium Lithium Fluoride (YLF) crystals doped with various rare-earth ions as a gain medium. As introduction a general ...
Constant-temperature dynamics in the Wigner representation of quantum mechanics.
This dissertation deals with theory and algorithms for computer simulations of classical and quantum systems in the canonical ensemble. First, the approach of Nos e-Hoover and its generalization, known as the Nos e- Hoover ...
Experimental measurement of the fluctuations of a laser beam due to thermal turbulence.
In this work, we considered and developed a new method to detect and quantify the fluctuations of a laser beam due to thermal turbulence. The new method consisted of a single laser beam propagating in air and passing ...
Computational studies of percolation : determination of the cluster number scaling function for lattices in 2 dimensions.
The main aim of this work is to study percolation theory on regular two dimensional
Quantum dynamics in the partial Wigner picture.
The Wigner formalism can be used to provide a representation of quantum dynamics in a classical-like phase space. However, there are many cases, such as when dealing with spin systems in a dissipative environment, in ...
On non-Hermitian quantum mechanics.
The purpose of this dissertation is to review the salient features of non-Hermitian quantum mechanics. An introduction to Hermitian quantum mechanics is included to make this review as accessible as possible. Attempts ...
Magnetic properties of Mg₁-xZnxFe₂O₄ nanoferrites and tetracycline-ferrite nanocomposites.
Abstract available in print copy.
The implementation of polarisation encoded quantum key distribution in fibre.
Quantum Key Distribution (QKD) employs the laws of quantum mechanics for the purpose of cryptography. Two parties, commonly called Alice and Bob, are able to share a random key which is used to encrypt a message. Any ...
Title: Study of anomalous VLF perturbations in possible relation to seismic activity.
Anomalous perturbations of the ionosphere have been observed either as uctuations in the critical frequency of the F-region ionosphere, foF2, or as uctuations in the nighttime VLF signals that propagate through the ...
Generation and detection of bessel beams.
In this dissertation we study the properties of Bessel-Gauss beams. Bessel-Gauss beams are created by the interference of plane waves lying on a cone, and have unique properties: they propagate without spreading and ...