{"id":52,"date":"2016-10-09T15:05:39","date_gmt":"2016-10-09T12:05:39","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=52"},"modified":"2018-09-17T16:06:35","modified_gmt":"2018-09-17T13:06:35","slug":"%d7%9e%d7%95%d7%a9%d7%92%d7%99-%d7%99%d7%a1%d7%95%d7%93","status":"publish","type":"post","link":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=52","title":{"rendered":"\u05de\u05d5\u05e9\u05d2\u05d9 \u05d9\u05e1\u05d5\u05d3"},"content":{"rendered":"<p><span style=\"color: #408080\"><strong>\u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05de\u05ea\u05e7\u05d1\u05dc\u05ea \u05de\u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05d4\u05d9\u05d0 \u05ea\u05de\u05d9\u05d3 \u05e7\u05e8\u05d9\u05e0\u05d4 \u05d0\u05dc\u05e7\u05d8\u05e8\u05d5\u05de\u05d2\u05e0\u05d8\u05d9\u05ea<\/strong><\/span>, \u05d5\u05d4\u05d9\u05d0 \u05d9\u05db\u05d5\u05dc\u05d4 \u05dc\u05d4\u05d9\u05de\u05e6\u05d0 \u05d1\u05ea\u05d7\u05d5\u05dd \u05d4\u05e1\u05e4\u05e7\u05d8\u05e8\u05d5\u05dd \u05d4\u05e0\u05e8\u05d0\u05d4, \u05d1\u05ea\u05d7\u05d5\u05dd \u05d4\u05d0\u05d5\u05dc\u05d8\u05e8\u05d0-\u05e1\u05d2\u05d5\u05dc, \u05d1\u05ea\u05d7\u05d5\u05dd \u05d4\u05d0\u05d9\u05e0\u05e4\u05e8\u05d0-\u05d0\u05d3\u05d5\u05dd, \u05d5\u05d0\u05e3 \u05de\u05e2\u05d1\u05e8 \u05dc\u05d4\u05dd.<\/p>\n<p>\u05dc\u05db\u05df, \u05d1\u05d1\u05d5\u05d0\u05e0\u05d5 \u05dc\u05dc\u05de\u05d5\u05d3 \u05e2\u05dc \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05d0\u05e0\u05d5 \u05d7\u05d9\u05d9\u05d1\u05d9\u05dd \u05dc\u05d4\u05db\u05d9\u05e8 \u05d0\u05ea <strong><span style=\"color: #804000\">\u05d4\u05de\u05d5\u05e9\u05d2\u05d9\u05dd \u05d4\u05de\u05ea\u05d0\u05e8\u05d9\u05dd \u05d0\u05ea \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05d0\u05dc\u05e7\u05d8\u05e8\u05d5\u05de\u05d2\u05e0\u05d8\u05d9\u05ea<\/span><\/strong>.<\/p>\n<p>\u05d0\u05d7\u05d3\u05d9\u05dd \u05de\u05de\u05d5\u05e9\u05d2\u05d9\u05dd \u05d0\u05dc\u05d5 \u05d4\u05dd \u05d2\u05d3\u05dc\u05d9\u05dd \u05e4\u05d9\u05d6\u05d9\u05e7\u05dc\u05d9\u05d9\u05dd \u05de\u05d5\u05db\u05e8\u05d9\u05dd, \u05d4\u05de\u05ea\u05d5\u05d0\u05e8\u05d9\u05dd \u05d1\u05d0\u05de\u05e6\u05e2\u05d5\u05ea \u05e1\u05de\u05dc\u05d9\u05dd \u05de\u05ea\u05de\u05d8\u05d9\u05d9\u05dd \u05de\u05e7\u05d5\u05d1\u05dc\u05d9\u05dd:<\/p>\n<p><span style=\"font-family: Symbol\"><strong>l<\/strong><\/span><span style=\"font-family: David\"><sub><strong>0<\/strong><\/sub><\/span> = <span style=\"color: #804000\"><strong>\u05d0\u05d5\u05e8\u05da \u05d2\u05dc \u05d1\u05e8\u05d9\u05e7<\/strong><\/span>.<br \/>\n<span style=\"font-family: Symbol;font-size: large\"><strong>n<\/strong><\/span> = <span style=\"color: #804000\"><strong>\u05ea\u05d3\u05d9\u05e8\u05d5\u05ea<\/strong><\/span> \u05d0\u05d5 <strong><span style=\"color: #804000\">\u05ea\u05d3\u05e8<\/span><\/strong>. \u05d9\u05e9 \u05d4\u05de\u05e1\u05de\u05e0\u05d9\u05dd \u05ea\u05d3\u05d9\u05e8\u05d5\u05ea \u05d1\u05d0\u05d5\u05ea f \u05de\u05d4\u05e9\u05dd \u05d1\u05d0\u05e0\u05d2\u05dc\u05d9\u05ea: frequency.<br \/>\n<strong>T<\/strong> =<span style=\"color: #804000\"><strong> \u05d6\u05de\u05df \u05de\u05d7\u05d6\u05d5\u05e8<\/strong><\/span>:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><strong>T = 1\/v<\/strong><\/p>\n<p><strong>c<\/strong> = &quot;\u05de\u05d4\u05d9\u05e8\u05d5\u05ea \u05d4\u05d0\u05d5\u05e8&quot; = \u05de\u05d4\u05d9\u05e8\u05d5\u05ea \u05d4\u05ea\u05e7\u05d3\u05de\u05d5\u05ea \u05e7\u05e8\u05d9\u05e0\u05d4 \u05d0\u05dc\u05e7\u05d8\u05e8\u05d5\u05de\u05d2\u05e0\u05d8\u05d9\u05ea \u05d1\u05e8\u05d9\u05e7:<\/p>\n<p style=\"text-align: center\"><span style=\"font-family: David;font-size: large\"><b>c\u00a0<\/b><\/span><span style=\"font-family: Symbol;font-size: large\"><b>= ln<\/b><\/span><\/p>\n<p><strong>n<\/strong> =<strong><span style=\"color: #804000\"> \u05de\u05e7\u05d3\u05dd \u05e9\u05d1\u05d9\u05e8\u05d4 \u05e9\u05dc \u05d7\u05d5\u05de\u05e8<\/span><\/strong> (\u05dc\u05db\u05dc \u05d7\u05d5\u05de\u05e8 n \u05d0\u05d5\u05e4\u05d9\u05d9\u05e0\u05d9).<br \/>\n\u05e2\u05e8\u05da \u05de\u05e7\u05d3\u05dd \u05d4\u05e9\u05d1\u05d9\u05e8\u05d4 \u05e9\u05dc \u05d4\u05d7\u05d5\u05de\u05e8 \u05d4\u05d5\u05d0 \u05de\u05e2\u05d8 \u05e9\u05d5\u05e0\u05d4 \u05e2\u05d1\u05d5\u05e8 \u05d0\u05d5\u05e8\u05db\u05d9 \u05d2\u05dc \u05e9\u05d5\u05e0\u05d9\u05dd.<br \/>\n<strong>v<\/strong> = \u05de\u05d4\u05d9\u05e8\u05d5\u05ea \u05d4\u05ea\u05e7\u05d3\u05de\u05d5\u05ea \u05e7\u05e8\u05d9\u05e0\u05d4 \u05d0\u05dc\u05e7\u05d8\u05e8\u05d5\u05de\u05d2\u05e0\u05d8\u05d9\u05ea \u05d1\u05d7\u05d5\u05de\u05e8:<\/p>\n<p style=\"text-align: center\"><b>v = c\/n<\/b><\/p>\n<p><span style=\"font-family: Symbol\"><strong>l<\/strong><\/span><span style=\"font-family: David\"><sub><strong>n<\/strong><\/sub><\/span> = <strong><span style=\"color: #804000\">\u05d0\u05d5\u05e8\u05da \u05d2\u05dc \u05d1\u05d7\u05d5\u05de\u05e8<\/span><\/strong>:<\/p>\n<p style=\"text-align: center\"><span style=\"font-family: Symbol;font-size: large\"><b>l<\/b><\/span><span style=\"font-family: David;font-size: large\"><sub><b>n<\/b><\/sub><b>\u00a0=\u00a0<\/b><\/span><span style=\"font-family: Symbol;font-size: large\"><b>l<\/b><\/span><span style=\"font-family: David;font-size: large\"><sub><b>0<\/b><\/sub><b>\/n<\/b><\/span><\/p>\n<p style=\"text-align: right\"><a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=11\"><img decoding=\"async\" class=\"alignnone size-full wp-image-49\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/Buttons_Previous5bCircle5d.png\" alt=\"\u05db\u05e4\u05ea\u05d5\u05e8 &quot;\u05d4\u05e7\u05d5\u05d3\u05dd&quot;\" width=\"148\" height=\"54\" \/><\/a> <a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=57\"><img decoding=\"async\" class=\"size-full wp-image-48 alignleft\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/Buttons_Next-5bSquare5d.png\" alt=\"\u05db\u05e4\u05ea\u05d5\u05e8 &quot;\u05d4\u05d1\u05d0&quot;\" width=\"148\" height=\"54\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05de\u05ea\u05e7\u05d1\u05dc\u05ea \u05de\u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05d4\u05d9\u05d0 \u05ea\u05de\u05d9\u05d3 \u05e7\u05e8\u05d9\u05e0\u05d4 \u05d0\u05dc\u05e7\u05d8\u05e8\u05d5\u05de\u05d2\u05e0\u05d8\u05d9\u05ea, \u05d5\u05d4\u05d9\u05d0 \u05d9\u05db\u05d5\u05dc\u05d4 \u05dc\u05d4\u05d9\u05de\u05e6\u05d0 \u05d1\u05ea\u05d7\u05d5\u05dd \u05d4\u05e1\u05e4\u05e7\u05d8\u05e8\u05d5\u05dd \u05d4\u05e0\u05e8\u05d0\u05d4, \u05d1\u05ea\u05d7\u05d5\u05dd \u05d4\u05d0\u05d5\u05dc\u05d8\u05e8\u05d0-\u05e1\u05d2\u05d5\u05dc, \u05d1\u05ea\u05d7\u05d5\u05dd \u05d4\u05d0\u05d9\u05e0\u05e4\u05e8\u05d0-\u05d0\u05d3\u05d5\u05dd, \u05d5\u05d0\u05e3 \u05de\u05e2\u05d1\u05e8 \u05dc\u05d4\u05dd. \u05dc\u05db\u05df, \u05d1\u05d1\u05d5\u05d0\u05e0\u05d5 \u05dc\u05dc\u05de\u05d5\u05d3 \u05e2\u05dc \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05d0\u05e0\u05d5 \u05d7\u05d9\u05d9\u05d1\u05d9\u05dd \u05dc\u05d4\u05db\u05d9\u05e8 \u05d0\u05ea \u05d4\u05de\u05d5\u05e9\u05d2\u05d9\u05dd \u05d4\u05de\u05ea\u05d0\u05e8\u05d9\u05dd \u05d0\u05ea \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05d0\u05dc\u05e7\u05d8\u05e8\u05d5\u05de\u05d2\u05e0\u05d8\u05d9\u05ea. \u05d0\u05d7\u05d3\u05d9\u05dd \u05de\u05de\u05d5\u05e9\u05d2\u05d9\u05dd \u05d0\u05dc\u05d5 \u05d4\u05dd \u05d2\u05d3\u05dc\u05d9\u05dd \u05e4\u05d9\u05d6\u05d9\u05e7\u05dc\u05d9\u05d9\u05dd &hellip; <a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=52\">\u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4  <span class=\"meta-nav\">&larr;<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-52","post","type-post","status-publish","format-standard","hentry","category-1-"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/52"}],"collection":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=52"}],"version-history":[{"count":16,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":6222,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions\/6222"}],"wp:attachment":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}