Postdoctoral Research Assistant in Electrodynamic manipulation of micron-sized particles

A post is available at the Department of Physics, University of Oxford for a
Post-Doctoral Research Associate (PDRA) to undertake experimental work in
electrodynamic manipulation of micron-sized objects, managed by Prof. Foot.
This project aims to develop methods to control both the orientation of non-
spherical objects and their position in space, using a new electrodynamic
apparatus to be designed and constructed. The workplan set out in the research
proposal selected by the Leverhulme Trust covers a range of applications for
this technique. Specific objectives include: (i) trapping metal foils a few
microns thick by tens of microns wide for use as targets for high-repetition
rate high-power laser systems, (ii) the electrostatic manipulation of
graphene, carbon nanoribbons and other two-dimensional materials in a clean
ultra-high vacuum environment for fabrication of novel devices as well as
investigation of these materials at high temperatures via laser heating, (iii)
measurement of the viscous drag of non-spherical particles, such as volcanic
ash, held at different orientations, and (iv) biological samples may also be
investigated, e.g., using an electrospray to create highly charged non-
spherical objects. Developing methods to charge particles and capture them in
an electrodynamic trap will be one of the main experimental tasks, especially
in vacuum where there is no damping of the motion so that the electric fields
need to be switched with precise timing.





The postholder will be expected to carry out practical work in the laboratory
to investigate and develop these methodologies (taking measurements and
analysing data), as well as collaborating with other PDRAs on technical
aspects of the apparatus such as designing and constructing mechanical and
electronic components. Prior experience with developing experimental control
systems is not required since the primary role of the postholder to carry out
experimental work in the laboratory and other members of the team are expert
in the electronics etc. This project combines and extends ideas drawn from
Physics, (Physical) Chemistry and (Electronic) Engineering and it is suitable
for someone with a background in these, or related fields, who is open minded
and willing to explore this new research direction. The Leverhulme Trust
supports individual research projects with the vision to go beyond the fields
traditionally supported by other funding bodies and with potential high
rewards. It would also be desirable for the postholder to engage with
potential end-users.








Please direct informal enquiries about the role to:
christopher.foot@physics.ox.ac.uk





The closing date for applications is 12 noon on 15 October 2024. Please upload
a CV and supporting statement as well as providing details of two referees as
part of your online application