{"id":165853,"date":"2022-01-26T11:00:19","date_gmt":"2022-01-26T11:00:19","guid":{"rendered":"\/forum\/forums\/topic\/convergence-issue-with-different-mesh-accuracy\/"},"modified":"2022-02-02T17:11:50","modified_gmt":"2022-02-02T17:11:50","slug":"convergence-issue-with-different-mesh-accuracy","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergence-issue-with-different-mesh-accuracy\/","title":{"rendered":"Convergence issue with different mesh accuracy"},"content":{"rendered":"
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Hello, <\/p>\n

I am simulating an optical resonator on a susbstrate and looking the reflected field. <\/p>\n

The substrate is made of Si02 with a 220nm layer of Si and 3 nm of native SiO2. <\/p>\n

The nanoparticle is a 150*100nm rectangle with 3 layers : 2 of gold seperate by on of SiO2 the height of the gold rectangles is 30 nm and 50 nm for the SiO2 one. <\/p>\n

The plane wave source is above the nanoparticle, I use a power monitor to calculate the reflexion coefficient. For the boundary conditions, I have PML for zmin and zmax, antisymetric for xmin and xmax, and symmetric for ymin and ymax.<\/p>\n

I also use a mesh refinement for the nanoparticle and the area of native SiO2 just below the nanoparticle with a mesh step of 3 nm. <\/p>\n

I have run this simulation and calculate the reflexion coefficient for different mesh accuracy ( 2-7) as you can see in the following figure.<\/p>\n

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\nR_meshAcc.png
\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-165853","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["546"],"_bbp_likes_count":["0"],"_bbp_subscription":["255490"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["165853"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","230290"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["203749"],"_bbp_last_active_id":["203749"],"_bbp_last_active_time":["2022-02-02 17:11:50"]},"test":"marius-crouzierc2n-upsaclay-fr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/165853","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\/165853\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=165853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}