{"id":344160,"date":"2024-01-11T08:06:36","date_gmt":"2024-01-11T08:06:36","guid":{"rendered":"\/forum\/forums\/topic\/small-scale-metalens-example\/"},"modified":"2024-01-11T08:06:36","modified_gmt":"2024-01-11T08:06:36","slug":"small-scale-metalens-example","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/small-scale-metalens-example\/","title":{"rendered":"Small scale metalens example"},"content":{"rendered":"<p>Hello,<br \/>&nbsp;I am trying to use small scale metalens example of lumerical. When I construct full metalens, in farfield propagation plot in polar coordinates, there is diffraction pattern in small focal lengths like 50um. When I increase the focal length to 300um interference disappears. Do you have any suggestion how to solve this? You may see related images attached.<br \/>Br, Asli<br \/><img loading=\"lazy\" decoding=\"async\" style=\"font-size: 14pt\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/11-01-2024-1704960298-short focal length.jpg\" alt=\"\" width=\"228\" height=\"212\"><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/11-01-2024-1704960352-long focal length.jpg\" alt=\"\" width=\"221\" height=\"225\"><\/p>\n","protected":false},"template":"","class_list":["post-344160","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["336426","50911"],"_bbp_author_ip":["23.206.193.41"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["231"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["2"],"_bbp_topic_id":["344160"],"_bbp_forum_id":["27833"],"_bbp_engagement":["50911","336426"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["344500"],"_bbp_last_active_id":["344500"],"_bbp_last_active_time":["2024-01-12 16:37:52"]},"test":"asli-pekmantuni-fi"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/344160","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\/344160\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=344160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}