Madan, I., Vanacore, G.M., Pomarico, E., Berruto, G., Lamb, R.J., McGrouther, D. , Lummen, T.T.A., Latychevskaia, T., García de Abajo, F.J. and Carbone, F. (2019) Holographic imaging of electromagnetic fields via electron-light quantum interference. Science Advances, 5(5), eaav8358. (doi: 10.1126/sciadv.aav8358) (PMID:31058225) (PMCID:PMC6499551)
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Abstract
Holography relies on the interference between a known reference and a signal of interest to reconstruct both the amplitude and the phase of that signal. With electrons, the extension of holography to the ultrafast time domain remains a challenge, although it would yield the highest possible combined spatiotemporal resolution. Here, we show that holograms of local electromagnetic fields can be obtained with combined attosecond/nanometer resolution in an ultrafast transmission electron microscope (UEM). Unlike conventional holography, where signal and reference are spatially separated and then recombined to interfere, our method relies on electromagnetic fields to split an electron wave function in a quantum coherent superposition of different energy states. In the image plane, spatial modulation of the electron energy distribution reflects the phase relation between reference and signal fields. Beyond imaging applications, this approach allows implementing quantum measurements in parallel, providing an efficient and versatile tool for electron quantum optics.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | McGrouther, Dr Damien and Lamb, Mr Raymond |
| Authors: | Madan, I., Vanacore, G.M., Pomarico, E., Berruto, G., Lamb, R.J., McGrouther, D., Lummen, T.T.A., Latychevskaia, T., García de Abajo, F.J., and Carbone, F. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Science Advances |
| Publisher: | American Association for the Advancement of Science |
| ISSN: | 2375-2548 |
| ISSN (Online): | 2375-2548 |
| Published Online: | 03 May 2019 |
| Copyright Holders: | Copyright © 2019 The Authors |
| First Published: | First published in Science Advances 5(5):eaav8358 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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