{"id":52891,"date":"2021-03-04T22:33:42","date_gmt":"2021-03-04T22:33:42","guid":{"rendered":"\/forum\/forums\/topic\/ansys-insight-fdtd-%e5%88%9d%e5%ad%a6%e8%80%85%ef%bc%9a%e9%ab%98%e6%96%af%e5%85%89%e6%ba%90%e9%97%ae%e9%a2%98\/"},"modified":"2022-11-28T21:35:46","modified_gmt":"2022-11-28T21:35:46","slug":"ansys-insight-fdtd-chuxuezhegaosiguangyuanwenti","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-insight-fdtd-chuxuezhegaosiguangyuanwenti\/","title":{"rendered":"Ansys Insight: FDTD \u521d\u5b66\u8005\uff1a\u9ad8\u65af\u5149\u6e90\u95ee\u9898"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\"><\/p>\n<div>&nbsp;<\/div>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\"><a class=\"embedImage-link\" href=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/6DEEE663HA1G\/image.png\" target=\"_blank\" rel=\"nofollow noopener\"> <\/a><a class=\"wp-colorbox-image cboxElement\" href=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/6DEEE663HA1G\/image.png\"><img decoding=\"async\" class=\"embedImage-img\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/6DEEE663HA1G\/image.png\" alt=\"image.png\"><\/a><\/div>\n<div class=\"embedExternal-content\">\n<p><strong> 1: \u8bbe\u7f6e\u9ad8\u65afGaussian\u5149\u6e90\u5e38\u89c1\u7684\u95ee\u9898\u662f\uff0c\u5149\u675f\u675f\u8170waist \u4e0e x-and y span\uff08\u5149\u6e90\u6cbf\uff3a\u65b9\u5411\u6ce8\u5165\uff09\u7684\u5173\u7cfb <\/strong> <br \/>\u5149\u675f\u675f\u8170\u662f\u6807\u91cf\u9ad8\u65af\u5149\u675f\u7684\u7269\u7406\u7279\u6027\uff0c\u7ed9\u5b9a\u6ce2\u957f\uff0c\u5149\u675f\u675f\u8170\u51b3\u5b9a\u5149\u675f\u7684\u8fdc\u573a\u53d1\u6563\u89d2\u3002\u800cx span \u548c y span \u662f\u4eff\u771f\u65f6\u8bbe\u5b9a\u7684\u5149\u6e90\u51e0\u4f55\u53c2\u6570\u3002\u4e00\u822c\u6765\u8bf4\uff0cspan \u5e94\u8be5\u8fdc\u5927\u4e8e\u675f\u8170\uff0c\u4ee5\u51e0\u4e4e\u4e0d\u622a\u65ad\u5149\u675f\u4e3a\u51c6\u3002\u5426\u5219\uff0c\u5c31\u76f8\u5f53\u4e8e\u7ed9\u9ad8\u65af\u5149\u675f\u6dfb\u52a0\u4e86\u4e00\u4e2a\u786c\u5149\u680f\uff0c\u56e0\u4ea7\u751f\u884d\u5c04\u800c\u5f71\u54cd\u4eff\u771f\u7ed3\u679c\u3002<\/p>\n<p>\u8f6f\u4ef6\u4e2d\u4f1a\u663e\u793a\u9ad8\u65af\u5149\u675f\u5206\u5e03\u7684\u5f62\u8c8c\uff08\u7070\u8272\u5e3d\u5f62\u533a\uff09\uff0c\u7528\u6237\u53ef\u4ee5\u4f30\u8ba1\u8bbe\u7f6e\u7684span\u662f\u5426\u5408\u9002\u3002\u5f53\u7136\uff0c\uff30\uff2d\uff2c\u66f4\u4e0d\u80fd\u622a\u65ad\u5149\u675f\u3002\u8bbe\u7f6e\u662f\u5426\u5408\u7406\uff0c\u53ef\u4ee5\u518d\u7528\u66f4\u5bbd\u7684\u51e0\u4f55span\u548c\u4eff\u771f\u533a\u76f8\u5e94\u7684span\u4eff\u771f\uff0c\u5e76\u4e0e\u539f\u8bbe\u7f6e\u6bd4\u8f83\u3002\u5982\u679c\u53d8\u5316\u53ef\u4ee5\u63a5\u53d7\uff0c\u8bf4\u660e\u539f\u8bbe\u7f6e\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n<p><strong> 2: Thin lens NA \u5149\u6e90 <\/strong> <br \/>\u8fd9\u662f\u77e2\u91cf\u5149\u675f\uff0c\u76f8\u5f53\u4e8e\u7406\u60f3\u663e\u5fae\u955c\u7269\u955c\u805a\u7126\u7684\u5149\u675f\uff0c\u56e0\u6b64\u9700\u8981\u7ed9\u51faNA\uff0c\u5373\u6570\u503c\u5b54\u5f84\u7684\u6570\u503c\u3002<\/p>\n<p><strong> 3: Multi-frequency beam calculation <\/strong> <br \/>\u65b0\u7248zai Beam Options \u4e2d\u589e\u52a0\u4e86\u4e00\u4e2a\u9009\u9879\uff1a\u591a\u9891\u7387\u7684\u5149\u675f\u5206\u5e03\u3002\u5982\u679c\u4e0d\u9009\u6b64\u9879\uff0c\u4e0d\u540c\u9891\u7387\u7528\u7684\u662f\u76f8\u540c\u7684\u573a\u7a7a\u95f4\u5206\u5e03\uff0c\u4e25\u683c\u6765\u8bf4\u4ec5\u5bf9\u4e2d\u5fc3\u9891\u7387\u6b63\u786e\u3002\u6709\u65f6\u9700\u8981\u5728\u6574\u4e2a\u4eff\u771f\u5e26\u5bbd\u5185\u7684\u573a\u5206\u5e03\u90fd\u6b63\u786e\uff0c\u9700\u8981\u52fe\u9009\u6b64\u9879\uff0c\u5e76\u9700\u8981\u7ed9\u51fa\u8981\u8ba1\u7b97\u7684\u9891\u7387\u70b9\u6570\u548c\u9700\u8981\u8ba1\u7b97\u9006\u5085\u7acb\u53f6\u53d8\u6362IFT\u7684\u70b9\u6570\u3002<\/p>\n<p>&nbsp;<\/p>\n<div><img decoding=\"async\" class=\"zoomify\" src=\"https:\/\/optics.ansys.com\/hc\/article_attachments\/11557694564755\/e3595d653b3444ac3224482198e5de9812ced25e.png\"><\/div>\n<p>&nbsp;<\/p>\n<hr>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"template":"","class_list":["post-52891","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["25200"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["Bh?\""],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["3265"],"_edit_lock":["1669671321:70791"],"_edit_last":["76739"],"_wp_old_slug":["ansys-insight-fdtd-%e5%88%9d%e5%ad%a6%e8%80%85%ef%bc%9a%e9%ab%98%e6%96%af%e5%85%89%e6%ba%90%e9%97%ae%e9%a2%98"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["52891"],"_bbp_forum_id":["27835"],"_bbp_engagement":["2592"],"_bbp_voice_count":["1"],"_bbp_reply_count":["0"],"_bbp_last_reply_id":["0"],"_bbp_last_active_id":["52891"],"_bbp_last_active_time":["2021-03-04 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