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All Outputs (15)

An analysis of ferromagnetic shape memory alloys produced by melt spinning, sputtering and pulsed laser deposition. (2010)
Thesis
Dearing, N. (2010). An analysis of ferromagnetic shape memory alloys produced by melt spinning, sputtering and pulsed laser deposition. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4209497

Ferromagnetic shape memory alloys (FSMA) have recently attracted much interest and research because of their large magnetic-field induced strain. Strains of up to 10% have been reported in single crystals of Ni2MnGa at room temperature. The mechanism... Read More about An analysis of ferromagnetic shape memory alloys produced by melt spinning, sputtering and pulsed laser deposition..

One-step photoembossing for submicrometer surface relief structures in liquid crystal semiconductors (2010)
Journal Article
Liedtke, A., Lei, C., O’Neill, M., Dyer, P. E., Kitney, S. P., & Kelly, S. M. (2010). One-step photoembossing for submicrometer surface relief structures in liquid crystal semiconductors. ACS Nano, 4(6), 3248-3253. https://doi.org/10.1021/nn100012g

We report a new single-step method to directly imprint nanometer-scale structures on photoreactive organic semiconductors. A surface relief grating is spontaneously formed when a light-emitting, liquid crystalline, and semiconducting thin film is irr... Read More about One-step photoembossing for submicrometer surface relief structures in liquid crystal semiconductors.

157nm F₂laser characterization and application to polymer ablation (2009)
Thesis
Zakaria, R. (2009). 157nm F₂laser characterization and application to polymer ablation. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4213026

The work in this thesis focuses on applications and characterization studies of the vacuum ultra-violet (VUV) 157nm F2 laser. The laser ablation properties of various polymeric materials, namely polydimethylsiloxane (PDMS), the photo-resist SU-8, nyl... Read More about 157nm F₂laser characterization and application to polymer ablation.

Advanced direct laser micro-structuring of polymers for optical and other applications (2009)
Thesis
Boehlen, K. L. (2009). Advanced direct laser micro-structuring of polymers for optical and other applications. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4215949

Excimer laser ablation is a very well researched field, and there is a vast amount of publications on this subject. Many of them focus on the fundamentals of the ablation process and try to find models to describe the ablation mechanisms. This doctor... Read More about Advanced direct laser micro-structuring of polymers for optical and other applications.

Interference effects in 157 nm laser ablated cones in polycarbonate and application to spatial coherence measurement (2009)
Journal Article
Dyer, P. E., Walton, C. D., & Zakaria, R. (2009). Interference effects in 157 nm laser ablated cones in polycarbonate and application to spatial coherence measurement. Applied physics. A, Materials science & processing, 95(2), 319-323. https://doi.org/10.1007/s00339-009-5102-9

Conical structures formed in 157 nm laser-ablated polycarbonate exhibit a well-defined fringe structure with a period of a few 100 nm surrounding the cone base. Experiments and modelling studies of the interference produced by these micro-conical mir... Read More about Interference effects in 157 nm laser ablated cones in polycarbonate and application to spatial coherence measurement.

Inscription of fibre Bragg gratings in non-sensitised fibres using VUV F2 laser radiation (2008)
Journal Article
Dyer, P. E., Johnson, A. M., & Walton, C. D. (2008). Inscription of fibre Bragg gratings in non-sensitised fibres using VUV F2 laser radiation. Optics express, 16(23), 19297-19303. https://doi.org/10.1364/OE.16.019297

We report the inscription of fibre Bragg gratings in non-sensitised SMF 28 and HI 980 fibre by exposure to VUV F2 laser radiation at 157nm. The modulated effective refractive index change Δneff deduced from the shift in the grating reflection peaks w... Read More about Inscription of fibre Bragg gratings in non-sensitised fibres using VUV F2 laser radiation.

Ionization in vacuum ultraviolet F2 laser ablated polymer plumes (2007)
Journal Article
Dyer, P. E., Pervolaraki, M., Walton, C. D., Lippert, T., Kuhnke, M., & Wokaun, A. (2008). Ionization in vacuum ultraviolet F2 laser ablated polymer plumes. Applied physics. A, Materials science & processing, 90(3), 403-409. https://doi.org/10.1007/s00339-007-4341-x

An experimental investigation of ion generation in the 157-nm vacuum ultraviolet (VUV) F-2 laser ablation of three selected polymers - glycidyl azide polymer (GAP), a triazene polymer (TP6) and polyimide - is described. An ion collector probe is used... Read More about Ionization in vacuum ultraviolet F2 laser ablated polymer plumes.

UV laser micromachining of photonics materials (2005)
Thesis
Greuters, J. (2005). UV laser micromachining of photonics materials. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4223219

UV laser micromachining processes have been developed for materials typically used in photonics devices, i.e. indium phosphide, silicon, lithium niobate and fused silica, with the aim to provide alternative solutions for the currently established mic... Read More about UV laser micromachining of photonics materials.

Characterisation and ionisation modelling of matrices in MALDI mass spectrometry (1998)
Thesis
Allwood, D. A. (1998). Characterisation and ionisation modelling of matrices in MALDI mass spectrometry. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4223836

Experimental investigation of several matrix molecules commonly used in matrix- assisted laser desorption/ionisation (MALDI) mass spectrometry has provided the basis for modelling matrix ionisation within MALDI. Improvements in sample preparation, an... Read More about Characterisation and ionisation modelling of matrices in MALDI mass spectrometry.

Ablation of ophthalmic tissues with fibre delivered UV and IR lasers (1993)
Thesis
Khosroshahi, M. E. (1993). Ablation of ophthalmic tissues with fibre delivered UV and IR lasers. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4221129

In this thesis investigations of short pulse XeCl, KrF and ArF excimer lasers and HF laser transmission in fused silica and fluoride glass fibres respectively are reported, together with studies of polymer and soft tissue ablation in air and saline.... Read More about Ablation of ophthalmic tissues with fibre delivered UV and IR lasers.

IR laser photochemistry of alkanols and 3,3-dimethyloxetane (1991)
Thesis
Bishop, M. B. (1991). IR laser photochemistry of alkanols and 3,3-dimethyloxetane. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4214251

In this work, a pulsed CO₂ laser was used to excite methanol, ethanol, propan-2-ol, butan-2-ol, t-butanol, pentan-2-ol, hexan-2-ol, and 3,3-dimethyloxetane in order to study how these moleCUles absorb laser energy and decompose. The dependence of abs... Read More about IR laser photochemistry of alkanols and 3,3-dimethyloxetane.

High pulse repetition frequency XeCl laser and its applications (1990)
Thesis
Bishop, G. J. (1990). High pulse repetition frequency XeCl laser and its applications. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4214209

This thesis discusses the development, characterisation and evaluation of a compact, medium power, XeCl laser operating at pulse repetition frequencies (prf) >1kHz. The use of this laser to cut polymer films by ablative etching is also presented.... Read More about High pulse repetition frequency XeCl laser and its applications.

The interaction of infra-red laser radiation with solid targets (1981)
Thesis
Sayers, J. A. (1981). The interaction of infra-red laser radiation with solid targets. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4211281

The pulsed HF chemical laser was discovered in 1966 by Deutsch. Early lasers had very low power outputs; it is only more recently that high power pulsed HF/DF lasers have emerged. This thesis is concerned with the development of a 10J HF laser in 197... Read More about The interaction of infra-red laser radiation with solid targets.