{"id":719456,"date":"2022-03-16T14:40:40","date_gmt":"2022-03-16T18:40:40","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=719456"},"modified":"2022-03-16T14:40:40","modified_gmt":"2022-03-16T18:40:40","slug":"high-flux-100khz-attosecond-pulse-source-driven-by-a-high-average-power-annular-laser-beam","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=719456","title":{"rendered":"High-flux 100kHz attosecond pulse source driven by a high-average power annular laser beam"},"content":{"rendered":"<p>Attosecond pulses are indispensable tools for time-resolved studies of electron dynamics on their natural time scale (1 attosecond = 10-18 seconds). Such studies include coincidence spectroscopy and experiments with high demands on statistics or signal-to-noise ratio, especially in the case of solid and molecular samples in chemistry and biology, all with an exponentially growing interest. For these cutting-edge research topics, scientists need to increase the number of attosecond pulses in a certain unit of time, which can only be achieved by increasing the repetition rate of the attosecond source. To do so, a laser source of high average power and high repetition rate is necessary. However, the high average power of the driving laser source presents a difficulty when compared to conventional attosecond beamlines using lower power drivers: it is not easy to separate the attosecond pulses from the high-average-power laser beam after generation. To overcome this issue, scientists of the Extreme Light Infrastructure Attosecond Pulse Light Source (ELI ALPS) shaped the laser beam to an annular shape: Combining this approach with the proper experimental configuration,\u00a0they achieved the highest attosecond-pulse-train energy per shot produced by a system with a repetition rate above 10 kHz.\u00a0&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\n Click here for original story, <a href=\"https:\/\/phys.org\/news\/2022-03-high-flux-100khz-attosecond-pulse-source.html\" target=\"_blank\" rel=\"nofollow noopener\">High-flux 100kHz attosecond pulse source driven by a high-average power annular laser beam<\/a>&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\nSource: Phys.org&#013;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Attosecond pulses are indispensable tools for time-resolved studies of electron dynamics on their natural time scale (1 attosecond = 10-18 seconds). Such studies include coincidence spectroscopy and experiments with high&hellip; <\/p>\n","protected":false},"author":1,"featured_media":615444,"comment_status":"false","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-719456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phys-org"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/719456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=719456"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/719456\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=719456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=719456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=719456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}