{"id":6801,"date":"2018-06-21T10:04:52","date_gmt":"2018-06-21T14:04:52","guid":{"rendered":"http:\/\/iridian.mf-tested.com\/%e6%8a%80%e6%9c%af%e8%b5%84%e6%ba%90\/%e5%85%89%e5%ad%a6%e6%bb%a4%e9%95%9c%e6%95%99%e7%a8%8b\/%e7%94%a8%e4%ba%8e%e6%8b%89%e6%9b%bc%e5%85%89%e8%b0%b1%e7%9a%84%e8%be%b9%e9%80%9a%e6%bb%a4%e6%b3%a2%e7%89%87\/"},"modified":"2018-07-24T12:25:32","modified_gmt":"2018-07-24T16:25:32","slug":"%e7%94%a8%e4%ba%8e%e6%8b%89%e6%9b%bc%e5%85%89%e8%b0%b1%e7%9a%84%e8%be%b9%e9%80%9a%e6%bb%a4%e6%b3%a2%e7%89%87","status":"publish","type":"page","link":"https:\/\/www.iridian.ca\/zh-hans\/%e6%8a%80%e6%9c%af%e8%b5%84%e6%ba%90\/%e5%ba%94%e7%94%a8%e8%af%b4%e6%98%8e\/%e7%94%a8%e4%ba%8e%e6%8b%89%e6%9b%bc%e5%85%89%e8%b0%b1%e7%9a%84%e8%be%b9%e9%80%9a%e6%bb%a4%e6%b3%a2%e7%89%87\/","title":{"rendered":"\u7528\u4e8e\u62c9\u66fc\u5149\u8c31\u7684\u8fb9\u901a\u6ee4\u6ce2\u7247"},"content":{"rendered":"<h2>\u62c9\u66fc\u5149\u8c31\u5b66<\/h2>\n<p>\u62c9\u66fc\u5149\u8c31\u5b66\u63a2\u7d22\u6750\u6599\u7684\u5206\u5b50\u632f\u52a8\u548c\u8f6c\u52a8\u6a21\u5f0f\uff0c\u4ee5\u68c0\u6d4b\u548c\u8bc6\u522b\u6750\u6599\u3002\u6fc0\u5149\u706f\u5165\u5c04\u5230\u6750\u6599\u4e0a\uff0c\u53ef\u6d4b\u91cf\u6563\u5c04\u5149\u3002\u6fc0\u53d1\u6e90\u6fc0\u5149\u5f3a\u5ea6\u901a\u5e38\u6bd4\u62c9\u66fc\u6563\u5c04\u4fe1\u53f7\u5f3a 6 \u5230 8 \u4e2a\u6570\u91cf\u7ea7\u3002\u56e0\u6b64\uff0c\u5728\u4f20\u8f93\u6ce2\u957f\u504f\u79fb\uff08\u7ea2\u79fb\uff0c\u65af\u6258\u514b\u65af\uff1b\u84dd\u79fb\uff0c\u53cd\u65af\u6258\u514b\u65af\uff09\u7684\u62c9\u66fc\u6563\u5c04\u4fe1\u53f7\u65f6\uff0c\u9700\u8981\u8fb9\u901a\uff08\u6216\u5e26\u901a\uff09\u6ee4\u6ce2\u7247\u6765\u963b\u9694 Rayleigh \u6563\u5c04\u6fc0\u5149\u706f\u3002<\/p>\n<h2>\u5149\u5b66\u5bc6\u5ea6<\/h2>\n<p>\u5149\u5b66\u5bc6\u5ea6 (OD) \u662f\u5149\u5b66\u6ee4\u6ce2\u7247\u7684\u963b\u9694\u80fd\u529b\u7684\u4e00\u79cd\u8861\u91cf\u56e0\u7d20\u3002\u5f53\u5149\u901a\u8fc7\u6ee4\u6ce2\u7247\u65f6\uff0c\u4e00\u4e9b\u5149\u4f1a\u900f\u5c04\uff0c\u800c\u53e6\u4e00\u4e9b\u4f1a\u53cd\u5c04\u3001\u6563\u5c04\u6216\u88ab\u5438\u6536\u3002\u5149\u5b66\u5bc6\u5ea6\u8981\u8003\u8651\u6240\u6709\u5f62\u5f0f\u7684\u5149\u8870\u51cf\uff0c\u5305\u62ec\u5438\u6536\u3001\u53cd\u5c04\u548c\u6563\u5c04\u3002\u5149\u5b66\u5bc6\u5ea6\u88ab\u5b9a\u4e49\u4e3a <strong>OD = -log<sub>10<\/sub>T<\/strong> OD \u503c\u7684\u6570\u503c\u76f8\u5f53\u4e8e\u900f\u5c04\u6bd4\u503c (dB) \u7684 -1\/10\u3002<img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Optical-Density-1.jpg\" \/><\/p>\n<h2>\u8fb9\u9661\u5ea6<\/h2>\n<p>\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u8fb9\u9661\u5ea6\u88ab\u5b9a\u4e49\u4e3a\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u900f\u5c04\u5149\u8c31\u4e0a\u4e24\u70b9\u95f4\u7684\u5149\u8c31\u5bbd\u5ea6\u3002\u6ee4\u6ce2\u7247\u7684\u8fb9\u9661\u5ea6\u503c\u8d8a\u5c0f\uff08\u8fc7\u6e21\u8d8a\u5c16\u9510\uff09\uff0c\u5236\u4f5c\u6ee4\u6ce2\u7247\u5c31\u8d8a\u56f0\u96be\u3002<img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Edge-Steepness-1.jpg\" \/><\/p>\n<h2>\u622a\u6b62<\/h2>\n<p>\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u622a\u6b62\u88ab\u5b9a\u4e49\u4e3a\u6fc0\u5149\u8c31\u7ebf\u4e0e\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u900f\u5c04\u5149\u8c31\u4e0a\u7684 50% \u900f\u5c04 (-3dB) \u70b9\u4e4b\u95f4\u7684\u5149\u8c31\u5bbd\u5ea6\u3002\u4e00\u822c\u800c\u8a00\uff0c\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u6fc0\u5149\uff0c\u622a\u6b62\u503c\u8d8a\u5c0f\uff0c\u6ee4\u6ce2\u7247\u8d8a&ldquo;\u5c16\u5229&rdquo;\uff0c\u5236\u9020\u8fd9\u6837\u7684\u6ee4\u6ce2\u7247\u5c31\u8d8a\u56f0\u96be\u3002\u5c3d\u7ba1\u622a\u6b62\u548c\u8fb9\u9661\u5ea6\u90fd\u8bf4\u660e\u4e86\u6ee4\u6ce2\u7247\u7684\u5149\u8c31\u9661\u5ea6\uff0c\u622a\u6b62\u503c\u4e0e\u6fc0\u53d1\u6e90\u7684\u6fc0\u5149\u8c31\u7ebf\u76f8\u5173\uff0c\u800c\u8fb9\u9661\u5ea6\u662f\u6ee4\u6ce2\u7247\u7684\u56fa\u6709\u5c5e\u6027\u3002\u8981\u5b9e\u73b0\u6307\u5b9a\u7684\u622a\u6b62\u503c\uff0c\u65e2\u9700\u8981\u5b9e\u73b0\u6ee4\u6ce2\u7247\u7684\u9661\u5ea6\uff0c\u53c8\u9700\u8981\u5c06\u8be5\u8fb9\u7f18\u76f8\u5bf9\u4e8e\u6fc0\u5149\u8c31\u7ebf\u8fdb\u884c\u5b9a\u4f4d\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u622a\u6b62\u662f\u66f4\u4e25\u683c\u7684\u89c4\u8303\uff0c\u4e5f\u4e0e\u5e94\u7528\u66f4\u52a0\u76f8\u5173\u3002<img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Cut-Off-1.jpg\" \/><\/p>\n<h2>AOI \u7684\u6548\u5e94<\/h2>\n<p>\u5165\u5c04\u89d2 (AOI) \u662f\u5165\u5c04\u5149\u675f\u4e0e\u6ee4\u6ce2\u7247\u8868\u9762\u7684\u6cd5\u7ebf\u4e4b\u95f4\u5f62\u6210\u7684\u89d2\u5ea6\u30020\u00b0 \u7684 AOI \u4e5f\u8868\u793a\u4e3a&ldquo;\u6cd5\u5411\u5165\u5c04&rdquo;\u3002\u5bf9\u4e8e\u4efb\u4f55\u975e\u96f6 AOI\uff08\u975e\u6cd5\u5411\u5165\u5c04\uff09\uff0c\u6ee4\u6ce2\u7247\u7684\u5149\u8c31\u8fb9\u7f18\u5c06\u5411\u8f83\u77ed\u7684\u6ce2\u957f\u504f\u79fb\u3002<img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Effects-of-AOI-1.jpg\" \/>\u975e\u96f6 AOI \u7684\u6ce2\u957f\u4e0b\u79fb\u53d6\u51b3\u4e8e\u8bbe\u8ba1\uff0c\u5e76\u4e14\u4e0d\u540c\u4e8e\u5404\u79cd\u4f1a\u5bfc\u81f4\u504f\u632f\u5206\u5149\u7684\u504f\u632f\u3002<\/p>\n<h2>\u504f\u632f\u5206\u5149<\/h2>\n<p>\u968f\u7740 AOI \u4ece\u6cd5\u5411\u5165\u5c04\u89d2\u589e\u5927\uff0c\u6ee4\u6ce2\u7247\u8fb9\u7f18\u4f1a\u5411\u8f83\u77ed\u7684\u6ce2\u957f\u504f\u79fb\uff08&ldquo;\u84dd\u79fb&rdquo;\uff09\u3002s \u548c p \u504f\u632f\u7684\u8fb9\u7f18\u504f\u79fb\u4e0d\u540c\u7684\u91cf\uff0c\u5bfc\u81f4\u504f\u632f\u5206\u5149\u3002\u5bf9\u4e8e\u957f\u901a\u6ee4\u6ce2\u7247 (LPF)\uff0cp \u504f\u632f\u5149\u8c31\u8fb9\u7f18\u7684\u84dd\u79fb\u7a0b\u5ea6\u5927\u4e8e s \u504f\u632f\u8fb9\u7f18\u3002\u5bf9\u4e8e\u77ed\u901a\u6ee4\u6ce2\u7247 (SPF)\uff0cs \u504f\u632f\u5149\u8c31\u8fb9\u7f18\u7684\u84dd\u79fb\u7a0b\u5ea6\u5927\u4e8e p \u504f\u632f\u8fb9\u7f18\u3002\u504f\u632f\u5206\u5149\u5bfc\u81f4\u975e\u504f\u632f\u5149\u7684\u5149\u8c31\u54cd\u5e94\u4e2d\u51fa\u73b0\u6241\u5e73&ldquo;\u67b6&rdquo;\uff08s \u548c p \u504f\u632f\u8fb9\u7684\u5747\u503c\uff09\u3002\u8fd9\u4f1a\u51cf\u5c0f\u6709\u6548\u8fb9\u9661\u5ea6\uff0c\u4ece\u800c\u51cf\u5c0f\u6ee4\u6ce2\u7247\u7684\u622a\u6b62\u503c\u3002 <img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Polarization-Splitting-1.jpg\" \/><\/p>\n<h2>\u6fc0\u5149\u6ce2\u957f\u7684\u6548\u5e94<\/h2>\n<p>\u6839\u636e\u5b9a\u4e49\uff0c\u6ee4\u6ce2\u7247\u622a\u6b62\u662f\u6fc0\u5149\u8c31\u7ebf\u4e0e\u6ee4\u6ce2\u7247\u5149\u8c31\u4e0a\u5df2\u5b9a\u4e49\u7684\u900f\u5c04\u70b9\uff08\u901a\u5e38 T=50% \u70b9\uff09\u4e4b\u95f4\u7684\u6ce2\u957f\u5dee\u3002\u6fc0\u5149\u6ce2\u957f\u7684\u53d8\u5316\u5c06\u5f71\u54cd\u6ee4\u6ce2\u7247\u622a\u6b62\u3002\u56e0\u6b64\uff0c\u9009\u62e9\u6216\u5b9a\u4e49\u62c9\u66fc\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u9700\u6c42\u65f6\uff0c\u8003\u8651\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u5de5\u4f5c\u6ce2\u957f\uff08\u901a\u5e38 T=50% \u6ce2\u957f\uff09\u4ee5\u53ca\u6fc0\u5149\u8c31\u7ebf\u7684\u6ce2\u957f\u3001\u5149\u8c31\u5bbd\u5ea6\u548c\u4e0d\u786e\u5b9a\u6027\u3002\u8fb9\u9661\u5ea6\u662f\u8fb9\u901a\u6ee4\u6ce2\u7247\u7684\u4e00\u4e2a\u56fa\u6709\u5c5e\u6027\u3002\u5b83\u88ab\u5b9a\u4e49\u4e3a\u4e24\u4e2a\u900f\u5c04\u70b9\uff08\u5982 OD6 \u5904\u548c 50% \u5904\uff09\u4e4b\u95f4\u7684\u6ce2\u957f\u5dee\uff0c\u56e0\u6b64\u4e0d\u4f1a\u53d7\u5230\u6fc0\u53d1\u6fc0\u5149\u6ce2\u957f\u53d8\u5316\u7684\u5f71\u54cd\u3002<\/p>\n<h2>\u9525\u5f62\u534a\u89d2 (CHA) \u7684\u6548\u5e94<\/h2>\n<p>\u9525\u5f62\u534a\u89d2 (CHA) \u5b9a\u4e49\u975e\u51c6\u76f4\u5149\u6e90\uff08\u4f8b\u5982 LED\uff09\u7684\u5149\u7ebf\u7684\u89d2\u5ea6\u6269\u6563\u3002\u89d2\u5ea6\u6269\u6563\u53ef\u5efa\u6a21\uff0c\u4f8b\u5982\uff0c\u5efa\u4e3a\u5e26 CHA \u7684\u9ad8\u65af\u5206\u5e03\u56fe\uff0c\u6b64 CHA \u5b9a\u4e49\u4e3a\u5f52\u4e00\u5316\u5149\u5f3a\u4e3a\u6700\u5927\u5149\u5f3a\u7684 1\/e<sup>2<\/sup> \u65f6\u7684\u89d2\u5ea6\u3002\u4e0b\u56fe\u663e\u793a\u9525\u5f62\u534a\u89d2\u4e3a 5.5 \u5ea6\u7684\u9ad8\u65af\u5206\u5e03\u56fe\u5149\u6e90\u3002<img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Normalized-angular-profile-1.jpg\" \/><img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/Effects-of-Cone-Half-Angle-1.jpg\" \/> \u5149\u675f\u5185\u7684\u975e\u51c6\u76f4\u91cf\uff08\u89d2\u5ea6\u6269\u6563\uff09\u662f\u5149\u675f\u4e2d AOI \u7684\u6709\u6548\u8fde\u7eed\u5206\u5e03\u3002\u6b64\u89d2\u5ea6\u6269\u6563\u7684\u6548\u5e94\u662f\u62d3\u5bbd\u5149\u8c31\u7684\u7279\u6027\u3002\u8fd9\u53ef\u589e\u5927\u622a\u6b62\uff0c\u51cf\u5c0f\u6ee4\u6ce2\u7247\u7684\u8fb9\u9661\u5ea6\uff0c\u5e76\u51cf\u5c11\u4efb\u4f55\u7ed9\u5b9a\u6ce2\u957f\u548c AOI \u65f6\u7684 OD\u3002<\/p>\n<h2>T \u5e26\u5bbd\u7684\u6548\u5e94\uff08\u63a2\u6d4b\u5668\u5206\u8fa8\u7387\u5e26\u5bbd\uff09<\/h2>\n<p>\u8fd9\u4e9b\u6ee4\u6ce2\u7247\u7684\u7406\u8bba\u900f\u5c04\u66f2\u7ebf\u57fa\u4e8e 0nm \u7684\u5149\u8c31\u5206\u8fa8\u7387\u3002\u5149\u5b66\u8ba1\u91cf\u4eea\u5668\u901a\u5e38\u4f7f\u7528 0.1 nm \u5230 2 nm \u8303\u56f4\u5185\u7684\u5206\u8fa8\u7387\u3002\u901a\u5e38\uff0c\u6d4b\u91cf OD \u65f6\uff0c\u6d4b\u91cf\u7684\u5149\u8c31\u5e26\u5bbd\u4f1a\u589e\u5927\uff0c\u4ee5\u6700\u5927\u7a0b\u5ea6\u589e\u52a0\u63a2\u6d4b\u5668\u6536\u5230\u7684\u5149\u91cf\uff0c\u5e76\u6539\u5584\u4fe1\u566a\u6bd4 (S\/N)\u3002\u6709\u9650\u5206\u8fa8\u7387\u5e26\u5bbd\u7684\u6548\u5e94\u662f\u5149\u8c31\u8fb9\u7f18\u662f&ldquo;\u5706\u5f62&rdquo;\u7684\u3002\u820d\u5165\u7684\u91cf\u4e0e\u6240\u7528\u7684\u5206\u8fa8\u7387\u5e26\u5bbd\u6210\u6b63\u6bd4\uff0c\u5e26\u5bbd\u8d8a\u9ad8\uff0c\u5bf9\u5e94\u7684\u820d\u5165\u91cf\u5c31\u8d8a\u591a\u3002<img decoding=\"async\" src=\"\/wp-content\/uploads\/2018\/05\/resolution-bandwidth-1.jpg\" \/>\u5bf9\u4e8e\u4e0a\u8ff0\u793a\u4f8b\uff0c\u5728\u7528 2 nm \u7684\u5206\u8fa8\u7387\u5e26\u5bbd\u8fdb\u884c\u6d4b\u91cf\u65f6\uff0c\u900f\u5c04\u66f2\u7ebf\u4e0e 0nm \u65f6\u7684\u66f2\u7ebf\u5927\u76f8\u5f84\u5ead\uff0c\u5305\u62ec\u5728\u6240\u6709\u6ce2\u957f\u6761\u4ef6\u4e0b\u964d\u4f4e\u7684\u8fb9\u9661\u5ea6\u548c\u51cf\u5c0f\u7684 OD\u3002\u4f46\u662f\uff0c\u8fd9\u4e0d\u662f\u56e0\u4e3a\u6ee4\u6ce2\u7247\u7684\u5236\u9020\u7f3a\u9677\uff0c\u800c\u662f\u7531\u4e8e\u6d4b\u91cf\u7684\u4f2a\u5dee\u3002<\/p>\n<h2>\u7d2f\u79ef\u6548\u5e94<\/h2>\n<p>AOI\u3001\u9525\u89d2\u3001\u504f\u632f\u3001\u6fc0\u5149\u6ce2\u957f\u4e0d\u786e\u5b9a\u6027\u7684\u7d2f\u79ef\u6548\u5e94\u662f\u66f4\u7f3a\u4e4f\u76f4\u89c2\u6027\uff0c\u5404\u4e2a\u5355\u72ec\u53c2\u6570\u4e2d\u7684\u5fae\u5c0f\u53d8\u5316\u4f1a\u4f7f\u6ee4\u6ce2\u7247\u5149\u8c31\u6027\u80fd\u51fa\u73b0\u8f83\u5927\u7684\u6574\u4f53\u6027\u53d8\u5316\u3002\u603b\u4e4b\uff0c\u901a\u8fc7\u4e0a\u8ff0\u6548\u5e94\u7684\u4e00\u79cd\u6216\u591a\u79cd\u7ec4\u5408\uff0c\u6d4b\u5f97\u7684\u8fb9\u9661\u5ea6\u5c06\u51cf\u5c0f\uff0c\u6ee4\u6ce2\u7247\u7684\u622a\u6b62\u503c\u5c06\u589e\u5927\uff0c\u5149\u8c31\u8fb9\u7f18\u5c06\u66f4\u5706\uff0c\u5e76\u5411\u66f4\u77ed\u7684\u6ce2\u957f\u504f\u79fb\uff0c\u5e76\u4e14 OD 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