{"id":248463,"date":"2023-02-02T17:39:56","date_gmt":"2023-02-02T17:39:56","guid":{"rendered":"\/forum\/forums\/topic\/interconnect-fdtd-ring-resonator-with-gold-nanoparticles\/"},"modified":"2023-02-02T20:42:13","modified_gmt":"2023-02-02T20:42:13","slug":"interconnect-fdtd-ring-resonator-with-gold-nanoparticles","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/interconnect-fdtd-ring-resonator-with-gold-nanoparticles\/","title":{"rendered":"Interconnect, FDTD: ring resonator with gold nanoparticles"},"content":{"rendered":"<p>Hi everyone,<\/p>\n<p>I am simulating ring resonators in the Interconnect platform by breaking it down into the basic components (directional coupler, curved waveguide, straight waveguide). I have added an S-parameter block (S-par 1) in the Interconnect (figure 1).<a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/02-02-2023-1675350437-Interconnect_model.png\"><img decoding=\"async\" title=\"Interconnect model of a ring resonator\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/02-02-2023-1675350437-Interconnect_model.png\" alt=\"\"><\/a>.<\/p>\n<p>This block corresponds to an FDTD simulation of a straight waveguide with a nanorod on top of it. The 3D fdtd simulation of the waveguide and gold nanorod is done as shown in fig. 2. The boundaries are PML, and there is a finner mesh around the nanorod with step size 2x2x2 nm^3.<\/p>\n<p>Wavelength range: 1480-1530 nm,<\/p>\n<p>mesh accuracy : 2&nbsp; <a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/02-02-2023-1675351686-NR_CWG_FDTD.png\"><img decoding=\"async\" title=\"gold nanorod on curved waveguide: simulation in 3D-FDTD\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/02-02-2023-1675351686-NR_CWG_FDTD.png\" alt=\"\"><\/a><\/p>\n<p>At the drop port output of the ring resonator (input 2 in the ONA), I get a normalized power transmission exceeding 1 (figure 3), which is a violation of energy conservation. Could anyone help me with this issue ?<\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/02-02-2023-1675359501-Interconnect_port_power_transmittances.png\"><img decoding=\"async\" title=\"normalized power transmission measured by the ONA\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/02\/02-02-2023-1675359501-Interconnect_port_power_transmittances.png\" alt=\"\"><\/a><\/p>\n<p>Thank you.<\/p>\n","protected":false},"template":"","class_list":["post-248463","topic","type-topic","status-closed","hentry","topic-tag-interconnect","topic-tag-LumericalFDTD-1","topic-tag-plasmonics-1","topic-tag-ringresonators-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["102556","14496"],"_bbp_author_ip":["23.192.164.18"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["620"],"_edit_lock":["1675370431:194589"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["248463"],"_bbp_forum_id":["27833"],"_bbp_engagement":["14496","102556"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["275345"],"_bbp_last_active_id":["275345"],"_bbp_last_active_time":["2023-03-17 17:00:37"]},"test":"n-narendrastudent-tue-nl"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/248463","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\/248463\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=248463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}