Picosecond pulse measurement by two-photon excitation of photographic film

Technique shoots two broad light beams onto a photosensitive surface which responds nonlinearly to the intensity in the beams. The resultant signal contains a component depending on the intensity correlation function between the two light beams

Controllable forms for stabilising pole assignment design of generalised bilinear systems

Bilinear structures are able to represent nonlinear phenomena more accurately than linear models, and thereby help to extend the range of satisfactory control performance. However, closed loop characteristics are typically designed by simulation and stability is not guaranteed. In this reported work, it is shown how bilinear systems are a special case of the more general state dependent parameter (SDP) model, which can subsequently be utilised to design stabilising feedback controllers using a special form of nonlinear pole assignment. To establish the link, however, an important generalisation of the SDP pole assignment method is developed

Thermal tuning of organic dye lasers

Non-mechanical method for tuning liquid laser wavelengths involves electrically varying temperature of laser medium. Technique is used to investigate behavior of laser dyes, and may lead to broad, tunable, light source for spectroscopy measurements of long path absorption

'No Promotion After Jerusalem' - Sir Ronald Storrs: Personality and Policy in Mandate Palestine

This thesis utilises the personal papers of Sir Ronald Storrs, as well as other archival materials, in order to make a microhistorical investigation of Storrs’ period as Military and Civilian Governor of Jerusalem between 1917-1926. Identifying Storrs as one of Galbraith’s ‘Men on the Spot’, the thesis builds upon Edward Said’s work on the Orientalist ‘determining imprint’ by arguing that Storrs took a deeply personal approach to governing the city; an approach that was determined by his upbringing, his education in the English private school system and his period as a British official in Colonial Egypt. It recognises the influence of these experiences on Storrs’ perceptions of and attitudes towards Jerusalem, identifying how these formative years manifested themselves on the built environment of the city, and in the Governor’s interactions with Jerusalemites of all backgrounds and religious beliefs. In doing so, this thesis also recognises the restrictions placed on Storrs’ approach by his British superiors, Palestinians and the Zionist movement, together with the limitations imposed by his own attitudes and worldview. By placing Storrs’ personality at the centre of discussion on early Mandate Jerusalem, a nuanced and complex picture is exposed; one where personality and politics collide to reveal that individuals as well as institutions have influenced the everyday life and built environment of one of the world’s most revered cities

Elastic and inelastic tunneling characteristics of AIAs/GaAs heterojunctions

N/

Inelastic tunneling characteristics of AIAs/GaAs heterojunction barriers

N/