High Resolution Ultrafast Imaging With Cold Electrons

Grant number: DP140102102 | Funding period: 2014 - 2017

Completed

Abstract

This project will develop atomic-scale imaging that is able to bypass the resolution limitations of modern electron microscopes. The project will investigate the physical processes underlying a new imaging source based on extracting cold electrons from laser-cooled atoms. Ultrashort pulses of cold electrons will enable time-lapse imaging of fundamental processes at the nano-scale, with applications in fundamental biosciences and materials science.

Related publications (7)

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Field ionization of Rydberg atoms for high-brightness electron and ion beams

AJ McCulloch, RW Speirs, J Grimmel, BM Sparkes, D Comparat, RE Scholten

2017-06-28

We present an ionization mechanism for use in a cold atom electron source with the goal of producing highly monochromatic electron..

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Identification of competing ionization processes in the generation of ultrafast electron bunches from cold-atom electron sources

Rory W Speirs, Andrew J McCulloch, Ben M Sparkes, Robert E Scholten

2017-05-17

We make direct measurements of the duration of ultrafast cold-electron bunches produced by photoionization of laser-cooled atoms. ..

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Suppression of Emittance Growth Using a Shaped Cold Atom Electron and Ion Source

DJ Thompson, D Murphy, RW Speirs, RMW Van Bijnen, AJ McCulloch, RE Scholten, BM Sparkes

2016-11-03

We demonstrate precise control of charged particle bunch shape with a cold atom electron and ion source to create bunches with lin..

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Stimulated Raman adiabatic passage for improved performance of a cold-atom electron and ion source

BM Sparkes, D Murphy, RJ Taylor, RW Speirs, AJ McCulloch, RE Scholten

2016-08-08

We implement high-efficiency coherent excitation to a Rydberg state using stimulated Raman adiabatic passage in a cold-atom electr..

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Cold electron sources using laser-cooled atoms

AJ McCulloch, BM Sparkes, RE Scholten

2016-07-29

Since the first observation of electron diffraction in 1927, electrons have been used to probe the structure of matter. High-brigh..

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Increasing the Brightness of Cold Ion Beams by Suppressing Disorder-Induced Heating with Rydberg Blockade

D Murphy, RE Scholten, BM Sparkes

2015-11-20

A model for the equilibrium coupling of an ion system with varying initial hard-sphere Rydberg blockade correlations is used to qu..

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Single-shot electron diffraction using a cold atom electron source

RW Speirs, CT Putkunz, AJ McCulloch, KA Nugent, BM Sparkes, RE Scholten

2015-09-23

Cold atom electron sources (CAESs) are a promising alternative to traditional photocathode sources for use in ultrafast electron d..

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