{"id":173814,"date":"2023-10-09T04:22:28","date_gmt":"2023-10-09T09:22:28","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/10\/narrower-energy-electron-pulses-without-electron-loss"},"modified":"2023-10-09T04:22:28","modified_gmt":"2023-10-09T09:22:28","slug":"narrower-energy-electron-pulses-without-electron-loss","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/10\/narrower-energy-electron-pulses-without-electron-loss","title":{"rendered":"Narrower-Energy Electron Pulses without Electron Loss"},"content":{"rendered":"<p style=\"padding-right: 20px\"><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/narrower-energy-electron-pulses-without-electron-loss.jpg\"><\/a><\/p>\n<p>Researchers demonstrate a method to reduce the energy spread of electrons used in electron microscopes, opening the door to time-and energy-resolved studies of quasiparticles such as phonons and plasmons.<\/p>\n<p>Conceived a century ago, electron microscopes are today standard fare in experimental research laboratories. By imaging a material with electrons, scientists can resolve details 1,000 times smaller than is possible with light. These devices can also employ pulsed electron beams to probe transient phenomena, such as the behavior of quasiparticles that a material hosts. Now Michael Yannai of Technion\u2013Israel Institute of Technology and his colleagues demonstrate a way to improve that capability by reducing the energy spread of the electrons in a pulsed imaging beam [<a href=\"https:\/\/physics.aps.org\/articles\/v16\/s147#c1\" class=\"\">1<\/a>]. Their method leaves the brightness of the beam unchanged, which is important for ultrafast imaging, as the ultrashort pulses used in this method necessarily comprise small numbers of electrons. \u201cOur technique opens the path to many potential time-and energy-resolved explorations that are currently impossible,\u201d says Ido Kaminer, who headed the team behind the research.<\/p>\n<p>Electron energy spread is one of the key factors limiting an electron microscope\u2019s resolution. The smaller this spread\u2014the closer the beam is to being monochromatic\u2014the better the resolution. The conventional method for reducing energy spread is to filter out electrons with energies outside of the desired range. But that process significantly reduces the electron flux, another factor that can limit a microscope\u2019s performance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers demonstrate a method to reduce the energy spread of electrons used in electron microscopes, opening the door to time-and energy-resolved studies of quasiparticles such as phonons and plasmons. Conceived a century ago, electron microscopes are today standard fare in experimental research laboratories. By imaging a material with electrons, scientists can resolve details 1,000 times [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,1635],"tags":[],"class_list":["post-173814","post","type-post","status-publish","format-standard","hentry","category-energy","category-materials"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/173814","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\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=173814"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/173814\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=173814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=173814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=173814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}