{"id":240193,"date":"2026-07-02T23:03:38","date_gmt":"2026-07-03T04:03:38","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/07\/russian-physicists-study-laser-beam-compressed-into-thin-filament"},"modified":"2026-07-02T23:03:38","modified_gmt":"2026-07-03T04:03:38","slug":"russian-physicists-study-laser-beam-compressed-into-thin-filament","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/07\/russian-physicists-study-laser-beam-compressed-into-thin-filament","title":{"rendered":"Russian physicists study laser beam compressed into thin filament"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/russian-physicists-study-laser-beam-compressed-into-thin-filament.jpg\"><\/a><\/p>\n<p>A group of Russian scientists recently presented their research into the process of laser pulse filamentation\u2014the effect produced when a laser beam propagating in air focuses into a filament. The researchers discovered how this process influences the preliminary transition of a beam passing through quartz glass, which has applications in the field of nonlinear optics.<\/p>\n<p>Light propagates in straight lines, and beams of <a href=\"https:\/\/phys.org\/tags\/light\/\" rel=\"tag\" class=\"\">light<\/a> are only reflected or refracted to the side when the properties of the medium it is passing through change. This is the basis of linear optics: it is called \u2018linear\u2019 because the division of <a href=\"https:\/\/phys.org\/tags\/electric+charges\/\" rel=\"tag\" class=\"\">electric charges<\/a> that occurs when light passes through a medium is linearly dependent on the intensity of the fields in the light wave itself. In other words, the stronger the electric field, the more the different charges are dispersed within the material\u2014the material becomes polarized.<\/p>\n<p>The <a href=\"https:\/\/phys.org\/tags\/polarization\/\" rel=\"tag\" class=\"\">polarization<\/a> of a material should not be confused with the <a href=\"https:\/\/phys.org\/tags\/polarization+of+light\/\" rel=\"tag\" class=\"\">polarization of light<\/a>. This polarization is characterised by the degree to which the positive and negative charges are dispersed in a substance, and in this way, the presence of specific directions within the electromagnetic wave within which the electric fields vibrate is called polarization.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A group of Russian scientists recently presented their research into the process of laser pulse filamentation\u2014the effect produced when a laser beam propagating in air focuses into a filament. The researchers discovered how this process influences the preliminary transition of a beam passing through quartz glass, which has applications in the field of nonlinear optics. [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1635,219],"tags":[],"class_list":["post-240193","post","type-post","status-publish","format-standard","hentry","category-materials","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/240193","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=240193"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/240193\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=240193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=240193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=240193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}