{"id":90805,"date":"2019-05-16T18:03:40","date_gmt":"2019-05-17T01:03:40","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2019\/05\/holographic-imaging-of-electromagnetic-fields-using-electron-light-quantum-interference"},"modified":"2019-05-16T18:03:40","modified_gmt":"2019-05-17T01:03:40","slug":"holographic-imaging-of-electromagnetic-fields-using-electron-light-quantum-interference","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2019\/05\/holographic-imaging-of-electromagnetic-fields-using-electron-light-quantum-interference","title":{"rendered":"Holographic imaging of electromagnetic fields using electron-light quantum interference"},"content":{"rendered":"

<\/a><\/p>\n

In conventional holography<\/a> a photographic film can record the interference pattern of monochromatic light scattered from the object to be imaged with a reference beam of un-scattered light. Scientists can then illuminate the developed image with a replica of the reference beam to create a virtual image of the original object. Holography<\/a> was originally proposed by the physicist Dennis Gabor in 1948<\/a> to improve the resolution of an electron microscope, demonstrated using light optics. A hologram<\/a> can be formed by capturing the phase and amplitude distribution of a signal by superimposing it with a known reference. The original concept was followed by holography with electrons<\/a>, and after the invention of lasers optical holography became a popular technique for 3D imaging macroscopic objects, information encryption<\/a> and microscopy imaging<\/a>.<\/p>\n

However, extending holograms to the ultrafast domain<\/a> currently remains a challenge with electrons, although developing the technique would allow the highest possible combined spatiotemporal resolution<\/a> for advanced imaging applications<\/a> in condensed matter physics. In a recent study now published in Science Advances<\/i>, Ivan Madan and an interdisciplinary research team in the departments of Ultrafast Microscopy and Electron Scattering, Physics, Science and Technology in Switzerland, the U.K. and Spain, detailed the development of a hologram using local electromagnetic fields<\/a>. The scientists obtained the electromagnetic holograms with combined attosecond\/nanometer<\/a> resolution in an ultrafast transmission electron microscope<\/a> (UEM).<\/p>\n

In the new method<\/a>, the scientists relied on electromagnetic fields to split an electron wave function in a quantum coherent superposition<\/a> of different energy states. The technique deviated from the conventional method, where the signal of interest and reference spatially separated and recombined to reconstruct the amplitude and phase of a signal of interest to subsequently form a hologram. The principle can be extended to any kind of detection configuration involving a periodic signal capable of undergoing interference, including sound waves, X-rays<\/a> or femtosecond pulse waveforms<\/a>.<\/p>\n

<\/p>\n

Read more<\/div>\n

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

In conventional holography a photographic film can record the interference pattern of monochromatic light scattered from the object to be imaged with a reference beam of un-scattered light. Scientists can then illuminate the developed image with a replica of the reference beam to create a virtual image of the original object. Holography was originally proposed [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1625,1497,1923,1617],"tags":[],"class_list":["post-90805","post","type-post","status-publish","format-standard","hentry","category-encryption","category-energy","category-holograms","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/90805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=90805"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/90805\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=90805"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=90805"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=90805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}