{"id":158309,"date":"2021-05-09T20:12:58","date_gmt":"2021-05-09T20:12:58","guid":{"rendered":"\/forum\/forums\/topic\/overlapping-farfield-profile-with-first-gaussian-mode\/"},"modified":"2021-07-07T21:35:05","modified_gmt":"2021-07-07T21:35:05","slug":"overlapping-farfield-profile-with-first-gaussian-mode","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/overlapping-farfield-profile-with-first-gaussian-mode\/","title":{"rendered":"Overlapping farfield profile with first gaussian mode"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I am using nearfield to far-field projection in FDTD to calculate the far-field. Now, I am wondering how much the far-field profile overlaps with the first gaussian mode. I remember there was a similar discussion in the previous KB platform that was suggested a mode expansion monitor can be used for this purpose but I don&#039;t know how it works.<\/p>\n<p>Apart from the above approach, I am thinking to plot the far-field in the cylindrical form (rather than ux,uy) and then compare the result with the basic Gaussian profile (in 3D). Unfortunately, I don&#039;t know if this approach works or not.<\/p>\n<p>Can you please advise?<\/p>\n","protected":false},"template":"","class_list":["post-158309","topic","type-topic","status-closed","hentry","topic-tag-far-field-1","topic-tag-fdtd"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["1904"],"_bbp_likes_count":["0"],"_bbp_subscription":["236664"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["158309"],"_bbp_forum_id":["27833"],"_bbp_engagement":["14496","72018","190846"],"_bbp_voice_count":["3"],"_bbp_reply_count":["12"],"_bbp_last_reply_id":["178128"],"_bbp_last_active_id":["178128"],"_bbp_last_active_time":["2021-07-07 21:35:05"]},"test":"hekmatircardiff-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/158309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/158309\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=158309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}