{"id":142,"date":"2016-10-10T11:26:17","date_gmt":"2016-10-10T08:26:17","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=142"},"modified":"2019-04-18T10:28:33","modified_gmt":"2019-04-18T07:28:33","slug":"1-2-2-%d7%9b%d7%99%d7%95%d7%95%d7%a0%d7%99%d7%95%d7%aa-directionality","status":"publish","type":"post","link":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=142","title":{"rendered":"1.2.2 \u05db\u05d9\u05d5\u05d5\u05e0\u05d9\u05d5\u05ea (Directionality)"},"content":{"rendered":"<p><span style=\"color: #000080\"><strong>\u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05d9\u05d5\u05e6\u05d0\u05ea \u05de\u05dc\u05d9\u05d9\u05d6\u05e8 \u05de\u05db\u05d5\u05d5\u05e0\u05ea \u05dc\u05db\u05d9\u05d5\u05d5\u05df \u05de\u05e1\u05d5\u05d9\u05dd \u05d5\u05d9\u05e9 \u05dc\u05d4 \u05d6\u05d5\u05d5\u05d9\u05ea \u05d4\u05ea\u05d1\u05d3\u05e8\u05d5\u05ea \u05de\u05e1\u05d5\u05d9\u05de\u05ea.<\/strong><\/span><\/p>\n<p><span style=\"color: #804000\"><strong>\u05e4\u05ea\u05d9\u05d7\u05d4 \u05d6\u05d5\u05d5\u05d9\u05ea\u05d9\u05ea<\/strong><\/span> (<strong> = \u05d4\u05ea\u05d1\u05d3\u05e8\u05d5\u05ea<\/strong>) \u05d4\u05d9\u05d0 \u05d4\u05d6\u05d5\u05d5\u05d9\u05ea \u05d0\u05dc\u05d9\u05d4 \u05e0\u05e4\u05ea\u05d7\u05ea \u05d0\u05dc\u05d5\u05de\u05ea \u05d4\u05e7\u05e8\u05e0\u05d9\u05d9\u05dd (\u05e8\u05d0\u05d4 \u05d0\u05d9\u05d5\u05e8 1.8).<\/p>\n<p><span style=\"color: #804000\"><strong>\u05d4\u05e4\u05ea\u05d9\u05d7\u05d4 \u05d4\u05d6\u05d5\u05d5\u05d9\u05ea\u05d9\u05ea<\/strong><\/span> \u05e9\u05dc \u05e7\u05e8\u05d9\u05e0\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8, \u05d4\u05de\u05ea\u05d5\u05d0\u05e8\u05ea \u05e2&quot;\u05d9<span style=\"color: #804000\"><strong> \u05d6\u05d5\u05d5\u05d9\u05ea \u05d4\u05d4\u05ea\u05d1\u05d3\u05e8\u05d5\u05ea<\/strong><\/span> ( <strong>= Divergence Angle<\/strong>), \u05e7\u05d8\u05e0\u05d4 \u05d1\u05d9\u05d5\u05ea\u05e8 \u05d9\u05d7\u05e1\u05d9\u05ea \u05dc\u05de\u05e7\u05d5\u05e8\u05d5\u05ea \u05d0\u05d5\u05e8 \u05d0\u05d7\u05e8\u05d9\u05dd \u05de\u05d5\u05db\u05e8\u05d9\u05dd.<\/p>\n<p>\u05d9\u05e9 \u05dc\u05e9\u05d9\u05dd \u05dc\u05d1 \u05e9\u05d1\u05d3\u05e8\u05da \u05db\u05dc\u05dc \u05db\u05d5\u05dc\u05dc\u05d9\u05dd \u05d1\u05d6\u05d5\u05d9\u05ea \u05d6\u05d5 \u05d0\u05ea <span style=\"color: #408080\"><strong><span style=\"color: #000080\">\u05d4\u05d6\u05d5\u05d5\u05d9\u05ea \u05d4\u05de\u05dc\u05d0\u05d4 (<\/span><a href=\"https:\/\/www.codecogs.com\/eqnedit.php?latex=\\theta\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" title=\"\\theta\" src=\"https:\/\/latex.codecogs.com\/gif.latex?\\theta\" \/><\/a><span style=\"color: #000080\">) \u05de\u05d1\u05d5\u05d8\u05d0\u05ea \u05d1\u05de\u05d9\u05dc\u05d9\u05e8\u05d0\u05d3\u05d9\u05d0\u05df<\/span><\/strong><\/span> (\u05dc\u05d4\u05e1\u05d1\u05e8 \u05de\u05d4\u05d9 \u05d9\u05d7\u05d9\u05d3\u05d4 \u05d6\u05d5 \u05dc\u05d7\u05e5 \u05db\u05d0\u05df).<\/p>\n<p style=\"text-align: center\"><span style=\"color: #000080\"><strong>(1 \u05de\u05d9\u05dc\u05d9\u05e8\u05d0\u05d3\u05d9\u05d0\u05df = 3.5 \u05d3\u05e7\u05d5\u05ea \u05e9\u05dc \u05e7\u05e9\u05ea).<\/strong><\/span><\/p>\n<p><a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=24\">\u05d1\u05e4\u05e8\u05e7 7<\/a>, \u05d1\u05d3\u05d9\u05d5\u05df \u05e2\u05dc <strong>\u05de\u05d0\u05e4\u05d9\u05d9\u05e0\u05d9 \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05e0\u05e4\u05dc\u05d8\u05ea \u05de\u05d4\u05dc\u05d9\u05d9\u05d6\u05e8<\/strong>, \u05de\u05ea\u05d5\u05d0\u05e8\u05d5\u05ea <strong>\u05e9\u05d9\u05d8\u05d5\u05ea \u05e9\u05d5\u05e0\u05d5\u05ea \u05dc\u05de\u05d3\u05d9\u05d3\u05ea \u05d4\u05e4\u05ea\u05d9\u05d7\u05d4 \u05d4\u05d6\u05d5\u05d5\u05d9\u05ea\u05d9\u05ea \u05e9\u05dc \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=136\"><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=146\"><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\u05d9\u05d5\u05e6\u05d0\u05ea \u05de\u05dc\u05d9\u05d9\u05d6\u05e8 \u05de\u05db\u05d5\u05d5\u05e0\u05ea \u05dc\u05db\u05d9\u05d5\u05d5\u05df \u05de\u05e1\u05d5\u05d9\u05dd \u05d5\u05d9\u05e9 \u05dc\u05d4 \u05d6\u05d5\u05d5\u05d9\u05ea \u05d4\u05ea\u05d1\u05d3\u05e8\u05d5\u05ea \u05de\u05e1\u05d5\u05d9\u05de\u05ea. \u05e4\u05ea\u05d9\u05d7\u05d4 \u05d6\u05d5\u05d5\u05d9\u05ea\u05d9\u05ea ( = \u05d4\u05ea\u05d1\u05d3\u05e8\u05d5\u05ea) \u05d4\u05d9\u05d0 \u05d4\u05d6\u05d5\u05d5\u05d9\u05ea \u05d0\u05dc\u05d9\u05d4 \u05e0\u05e4\u05ea\u05d7\u05ea \u05d0\u05dc\u05d5\u05de\u05ea \u05d4\u05e7\u05e8\u05e0\u05d9\u05d9\u05dd (\u05e8\u05d0\u05d4 \u05d0\u05d9\u05d5\u05e8 1.8). \u05d4\u05e4\u05ea\u05d9\u05d7\u05d4 \u05d4\u05d6\u05d5\u05d5\u05d9\u05ea\u05d9\u05ea \u05e9\u05dc \u05e7\u05e8\u05d9\u05e0\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8, \u05d4\u05de\u05ea\u05d5\u05d0\u05e8\u05ea \u05e2&quot;\u05d9 \u05d6\u05d5\u05d5\u05d9\u05ea \u05d4\u05d4\u05ea\u05d1\u05d3\u05e8\u05d5\u05ea ( = Divergence Angle), \u05e7\u05d8\u05e0\u05d4 \u05d1\u05d9\u05d5\u05ea\u05e8 &hellip; <a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=142\">\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":"closed","ping_status":"closed","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":[7],"tags":[],"class_list":["post-142","post","type-post","status-publish","format-standard","hentry","category-1-2---"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/142"}],"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=142"}],"version-history":[{"count":7,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/142\/revisions"}],"predecessor-version":[{"id":6231,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/142\/revisions\/6231"}],"wp:attachment":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}