{"id":397920,"date":"2024-12-18T21:02:37","date_gmt":"2024-12-18T21:02:37","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/metalens-efficiency-calculation-in-zemax-opticstudio\/"},"modified":"2024-12-18T21:02:37","modified_gmt":"2024-12-18T21:02:37","slug":"metalens-efficiency-calculation-in-zemax-opticstudio","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/metalens-efficiency-calculation-in-zemax-opticstudio\/","title":{"rendered":"Metalens efficiency calculation in Zemax OpticStudio"},"content":{"rendered":"<p>&lt;p&gt;I have been following the example <a href=\"https:\/\/optics.ansys.com\/hc\/en-us\/articles\/18254409091987-Large-Scale-Metalens-Ray-Propagation\">Large-Scale Metalens &ndash; Ray Propagation &ndash; Ansys Optics<\/a>. However, I have been unable to find a method for calculating the efficiency of the metalens in Zemax. For example, I was able to replicate the focal length and FWHM of the article &#8220;Diffraction-limited high-efficiency extreme ultraviolet metalens at 13.5 nm wavelength based on nanohole array in molybdenum membrane&#8221; in Zemax, but could not calculate the efficiency, which is defined as the ratio of the optical power in the&lt;br&gt;focal spot area [circle of diameter 2 &times; FWHM spanning the center of the focal spot] to&nbsp;the incident optical power. I tried following the article <a href=\"https:\/\/support.zemax.com\/hc\/en-us\/articles\/1500005486601-How-to-model-multi-mode-fiber-coupling\">How to model multi-mode fiber coupling &ndash; Knowledgebase<\/a> but the calculated efficiency in Zemax is quite small compared to the original paper.&nbsp;I would appreciate any suggestions or references regarding how to perform these calculations.&nbsp;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-397920","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27816"],"_bbp_topic_id":["397920"],"_bbp_subscription":["291368","284763"],"_bbp_author_ip":["45.251.231.42"],"_bbp_last_reply_id":["398271"],"_bbp_last_active_id":["398271"],"_bbp_last_active_time":["2024-12-23 10:12:11"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["291368","284763"],"_btv_view_count":["232"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1734555793:291368"],"_bbp_notification_enabled":["291368"]},"test":"ehsanul-karimbracu-ac-bd"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/397920","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\/397920\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=397920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}