School of Physics - Theses
Now showing items 1-10 of 173
Measurement of R(D) and R(D*) with a semileptonic tag at the Belle experiment
In recent years, several measurement of the ratios R(D) = B(B ̄ → Dτ−ν ̄τ )/B(B ̄ → Dl−ν ̄l )andR(D∗)=B(B ̄→D∗τ−ν ̄τ )/B(B ̄→D∗l−ν ̄l ),whereldenotesanelectron or a muon, have obtained results in disagreement with the ...
Optical trapping and tracking of nanoparticles using plasmonic nanoapertures and dielectric nanoantennas
This dissertation demonstrates the optical trapping and direct tracking of single nanoparticles using a plasmonic double nanohole aperture in a gold film and an all-silicon nanoantenna on a silicon substrate. For both ...
Pathways towards graphene based electrical DNA sequencing: a study of nucleobase adsorption on exposed channel graphene field effect transistors
The field of genetics has grown rapidly since the isolation of the double helix complex, DNA, that provides the genetic code behind all known life. The development of methods that allow this code to be read, and more ...
Simulations of source recovery and completeness in galaxy surveys at high redshift
The search for and characterisation of galaxies at high-redshift is a very active topic in Astrophysics. Thanks to advances in observations from space, the redshift frontier is approaching the epoch of formation of first ...
Erbium for optical modulation and quantum computation
Erbium (Er) is a lanthanide element, mainly used in its trivalent ionic form (Er3+), as an active dopant in optical devices, for light amplification or generation. The luminescence of Er3+ lies within the conventional ...
Top down fabricated silicon nanowires with quantum functionalities
This Ph.D thesis is concerned with the design, fabrication and mea- surement of silicon-on-insulator based nanowire devices that exhibit quantum effects in their operation. The devices were all formed us- ing top-down ...
Characterisation of a cold-atom electron source for ultrafast diffractive imaging
The understanding of atomic structures and processes is continually improving with the great technological development in imaging techniques. Ultrafast electron and X-ray techniques are able to perform measurements at ...
Determination of the CKM matrix element |Vcb| from exclusive B0 → D*lν decays with the Belle experiment
The magnitude of of the CKM matrix element |Vcb| is determined based on the exclusive semileptonic B0 → D*lν decay with data from the Belle experiment at KEKB. Two different parameterisations of the hadronic transition ...
Whole pattern analysis of serial protein X-ray crystallography diffraction data
Serial X-ray crystallography has quickly developed as an approach for the determination of crystal structures from proteins that do not form crystals of sufficient size or quality for conventional X-ray crystallography ...
Quantum relaxometric spectroscopy using the Nitrogen-Vacancy centre in diamond
This thesis investigates the use of the Nitrogen Vacancy (NV) centre in diamond as a novel sensor for magnetic resonance spectroscopy on the nanoscale. The need for novel nanoscale sensors of nuclear spins, for the application ...