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  • EPSRC Science Photography Winner
    An image of a single positively-charged strontium atom held by electric fields: Credit David Nadlinger/EPSRC

EPSRC Science Photography Winner

Feb 27 2018 Read 756 Times

A single positively-charged strontium atom, held near motionless by electric fields, has been announced as the overall Prize-winning image in a national science photography competition organised by the Engineering and Physical Sciences Research Council (EPSRC).

‘Single Atom in an Ion Trap’, by David Nadlinger, from the University of Oxford, shows the atom held by the fields emanating from the metal electrodes surrounding it. The distance between the small needle tips is about two millimetres.

When illuminated by a laser of the right blue-violet colour the atom absorbs and re-emits light particles sufficiently quickly for an ordinary camera to capture it in a long exposure photograph. The winning picture was taken through a window of the ultra-high vacuum chamber that houses the ion trap.

Laser-cooled atomic ions provide a pristine platform for exploring and harnessing the unique properties of quantum physics. They can serve as extremely accurate clocks and sensors or, as explored by the UK Networked Quantum Information Technologies Hub, as building blocks for future quantum computers, which could tackle problems that stymie even today’s largest supercomputers.

The image, came first in the Equipment & Facilities category, as well as winning overall against many other stunning pictures, featuring research in action, in the EPSRCs competition – now in its fifth year.

David Nadlinger, explained how the photograph came about: “The idea of being able to see a single atom with the naked eye had struck me as a wonderfully direct and visceral bridge between the miniscule quantum world and our macroscopic reality. A back-of-the-envelope calculation showed the numbers to be on my side and when I set off to the lab with camera and tripods one quiet Sunday afternoon, I was rewarded with this particular picture of a small, pale blue dot.”

The competition’s five categories were: Eureka & Discovery, Equipment & Facilities, People & Skills, Innovation, and Weird & Wonderful.

For further information and to view other winning images visit: www.epsrc.ac.uk

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