{"id":209252,"date":"2024-03-21T14:06:52","date_gmt":"2024-03-21T14:06:52","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%ac%e3%83%bc%e3%82%b6%e3%83%bc%e7%90%86%e8%ab%96-%e5%8e%9f%e7%90%86%e3%80%81%e6%a7%8b%e9%80%a0%e3%80%81%e5%bf%9c%e7%94%a8\/"},"modified":"2024-05-17T15:09:32","modified_gmt":"2024-05-17T15:09:32","slug":"%e3%83%ac%e3%83%bc%e3%82%b6%e3%83%bc%e7%90%86%e8%ab%96-%e5%8e%9f%e7%90%86%e3%80%81%e6%a7%8b%e9%80%a0%e3%80%81%e5%bf%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%ac%e3%83%bc%e3%82%b6%e3%83%bc%e7%90%86%e8%ab%96-%e5%8e%9f%e7%90%86%e3%80%81%e6%a7%8b%e9%80%a0%e3%80%81%e5%bf%9c%e7%94%a8\/","title":{"rendered":"\u30ec\u30fc\u30b6\u30fc\u7406\u8ad6 | \u539f\u7406\u3001\u69cb\u9020\u3001\u5fdc\u7528"},"content":{"rendered":"<p class=\"sidekick\">\u30ec\u30fc\u30b6\u30fc\u7406\u8ad6\u306e\u57fa\u672c\u539f\u7406\u3001\u69cb\u9020\u3001\u30ec\u30fc\u30b6\u30fc\u767a\u632f\u306e\u4ed5\u7d44\u307f\u3001\u901a\u4fe1\u3001\u533b\u7642\u3001\u7523\u696d\u306a\u3069\u306e\u591a\u5c90\u306b\u308f\u305f\u308b\u5fdc\u7528\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002<\/p>\n<h2>\u30ec\u30fc\u30b6\u30fc\u7406\u8ad6 | \u539f\u7406\u3001\u69cb\u9020\u3001\u5fdc\u7528<\/h2>\n<h3>\u30ec\u30fc\u30b6\u30fc\u306e\u539f\u7406<\/h3>\n<p>\u30ec\u30fc\u30b6\u30fc\u306f\u3001Light Amplification by Stimulated Emission of Radiation\uff08\u8a98\u5c0e\u653e\u51fa\u306b\u3088\u308b\u5149\u306e\u5897\u5e45\uff09\u306e\u7565\u3067\u3059\u3002\u30ec\u30fc\u30b6\u30fc\u306e\u57fa\u672c\u539f\u7406\u306f\u3001\u30a2\u30a4\u30f3\u30b7\u30e5\u30bf\u30a4\u30f3\u304c\u63d0\u5531\u3057\u305f\u523a\u6fc0\u653e\u51fa\uff08stimulated emission\uff09\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u539f\u5b50\u3084\u5206\u5b50\u304c\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u72b6\u614b\uff08\u52b1\u8d77\u72b6\u614b\uff09\u304b\u3089\u4f4e\u30a8\u30cd\u30eb\u30ae\u30fc\u72b6\u614b\uff08\u57fa\u5e95\u72b6\u614b\uff09\u306b\u9077\u79fb\u3059\u308b\u969b\u3001\u5149\u5b50\u3092\u653e\u51fa\u3057\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u5916\u90e8\u304b\u3089\u540c\u3058\u4f4d\u76f8\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u6301\u3064\u5149\u5b50\u304c\u63a5\u89e6\u3059\u308b\u3053\u3068\u3067\u3001\u540c\u3058\u7279\u6027\u3092\u6301\u3064\u5149\u5b50\u304c\u5897\u5e45\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u30ec\u30fc\u30b6\u30fc\u306e\u69cb\u9020<\/h3>\n<p>\u30ec\u30fc\u30b6\u30fc\u88c5\u7f6e\u306f\u4e3b\u306b3\u3064\u306e\u90e8\u5206\u304b\u3089\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u52b1\u8d77\u5a92\u4f53\uff08Gain Medium\uff09<\/strong>: \u5149\u3092\u653e\u51fa\u3059\u308b\u7269\u8cea\u3067\u3001\u56fa\u4f53\u3001\u6db2\u4f53\u3001\u30ac\u30b9\u306a\u3069\u69d8\u3005\u306a\u3082\u306e\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30a8\u30cd\u30eb\u30ae\u30fc\u4f9b\u7d66\u88c5\u7f6e\uff08Pump Source\uff09<\/strong>: \u52b1\u8d77\u5a92\u4f53\u306b\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u4f9b\u7d66\u3057\u3001\u539f\u5b50\u3092\u52b1\u8d77\u72b6\u614b\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u5171\u632f\u5668\uff08Resonator\uff09<\/strong>: \u5149\u3092\u53cd\u5c04\u3057\u3001\u591a\u91cd\u53cd\u5c04\u306b\u3088\u308a\u5149\u306e\u5897\u5e45\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e3\u3064\u306e\u8981\u7d20\u304c\u9023\u52d5\u3059\u308b\u3053\u3068\u3067\u3001\u5b89\u5b9a\u3057\u305f\u30ec\u30fc\u30b6\u30fc\u5149\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u30ec\u30fc\u30b6\u30fc\u306e\u767a\u632f\u306e\u4ed5\u7d44\u307f<\/h3>\n<p>\u30ec\u30fc\u30b6\u30fc\u767a\u632f\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n<ol>\n<li><strong>\u30dd\u30f3\u30d4\u30f3\u30b0\uff08Pumping\uff09<\/strong>: \u52b1\u8d77\u5a92\u4f53\u306b\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u4f9b\u7d66\u3057\u3001\u539f\u5b50\u3092\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u72b6\u614b\u306b\u52b1\u8d77\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u81ea\u767a\u653e\u51fa\uff08Spontaneous Emission\uff09<\/strong>: \u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u72b6\u614b\u306e\u539f\u5b50\u304c\u5b89\u5b9a\u72b6\u614b\u306b\u623b\u308b\u6642\u306b\u5149\u3092\u653e\u51fa\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u8a98\u5c0e\u653e\u51fa\uff08Stimulated Emission\uff09<\/strong>: \u767a\u751f\u3057\u305f\u5149\u5b50\u304c\u4ed6\u306e\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u72b6\u614b\u306e\u539f\u5b50\u3068\u885d\u7a81\u3057\u3001\u540c\u3058\u4f4d\u76f8\u306e\u5149\u5b50\u3092\u653e\u51fa\u3055\u305b\u307e\u3059\u3002<\/li>\n<li><strong>\u5171\u632f\u5668\u5185\u3067\u306e\u5897\u5e45<\/strong>: \u5149\u5b50\u304c\u5171\u632f\u5668\u5185\u3067\u53cd\u5c04\u3092\u7e70\u308a\u8fd4\u3057\u3001\u305d\u306e\u904e\u7a0b\u3067\u3055\u3089\u306b\u591a\u304f\u306e\u5149\u5b50\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u6700\u7d42\u7684\u306b\u3001\u7247\u65b9\u306e\u53cd\u5c04\u93e1\u304b\u3089\u51fa\u529b\u3068\u3057\u3066\u30ec\u30fc\u30b6\u30fc\u5149\u304c\u653e\u5c04\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n<h3>\u30ec\u30fc\u30b6\u30fc\u306e\u5fdc\u7528<\/h3>\n<p>\u30ec\u30fc\u30b6\u30fc\u6280\u8853\u306f\u975e\u5e38\u306b\u5e83\u7bc4\u56f2\u306b\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3044\u304f\u3064\u304b\u306e\u4e3b\u8981\u306a\u5fdc\u7528\u4f8b\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u901a\u4fe1<\/strong>: \u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3092\u7528\u3044\u305f\u901a\u4fe1\u6280\u8853\u3067\u3001\u9ad8\u901f\u304b\u3064\u9577\u8ddd\u96e2\u306e\u30c7\u30fc\u30bf\u901a\u4fe1\u304c\u53ef\u80fd\u3067\u3059\u3002<\/li>\n<li><strong>\u533b\u7642<\/strong>: \u30ec\u30fc\u30b6\u30fc\u624b\u8853\u3001\u30ec\u30fc\u30b6\u30fc\u6cbb\u7642\u306a\u3069\u3001\u4f4e\u4fb5\u8972\u306e\u533b\u7642\u624b\u6cd5\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u7523\u696d<\/strong>: \u30ec\u30fc\u30b6\u30fc\u52a0\u5de5\u3001\u5207\u65ad\u3001\u5f6b\u523b\u306a\u3069\u3001\u7cbe\u5bc6\u306a\u52a0\u5de5\u6280\u8853\u306b\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u79d1\u5b66\u7814\u7a76<\/strong>: \u5206\u5149\u5206\u6790\u3001\u30db\u30ed\u30b0\u30e9\u30d5\u30a3\u30fc\u3001\u5e72\u6e09\u8a08\u306a\u3069\u3001\u79d1\u5b66\u5b9f\u9a13\u3084\u7814\u7a76\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30ec\u30fc\u30b6\u30fc\u3068\u96fb\u78c1\u6c17\u5b66\u306e\u95a2\u4fc2<\/h3>\n<p>\u30ec\u30fc\u30b6\u30fc\u5149\u306f\u96fb\u78c1\u6ce2\u306e\u4e00\u7a2e\u3067\u3001\u96fb\u6c17\u3068\u78c1\u6c17\u306e\u76f8\u4e92\u4f5c\u7528\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u30de\u30c3\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\u3092\u4f7f\u3063\u3066\u96fb\u78c1\u6ce2\u306e\u632f\u308b\u821e\u3044\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30ec\u30fc\u30b6\u30fc\u5149\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u5bc6\u5ea6\u306f\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>$$<br \/>\nu = \\frac{1}{2}\\epsilon_0 E^2 + \\frac{1}{2\\mu_0} B^2<br \/>\n$$<\/p>\n<p>\u3053\u3053\u3067\u3001\\(\\epsilon_0\\)\u306f\u771f\u7a7a\u306e\u8a98\u96fb\u7387\u3001\\(\\mu_0\\)\u306f\u771f\u7a7a\u306e\u900f\u78c1\u7387\u3001\\(E\\)\u306f\u96fb\u5834\u5f37\u5ea6\u3001\\(B\\)\u306f\u78c1\u5834\u5f37\u5ea6\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<p>\u30ec\u30fc\u30b6\u30fc\u306e\u7406\u89e3\u306b\u306f\u3001\u96fb\u78c1\u6c17\u5b66\u306e\u57fa\u790e\u77e5\u8b58\u304c\u91cd\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u307e\u3068\u3081<\/h3>\n<p>\u30ec\u30fc\u30b6\u30fc\u306f\u3001\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306e\u76f8\u4e92\u4f5c\u7528\u306b\u3088\u308a\u751f\u307e\u308c\u305f\u91cd\u8981\u306a\u6280\u8853\u3067\u3059\u3002\u305d\u306e\u539f\u7406\u3001\u69cb\u9020\u304b\u3089\u5fdc\u7528\u306b\u81f3\u308b\u307e\u3067\u3001\u591a\u304f\u306e\u77e5\u8b58\u3068\u6280\u8853\u304c\u96c6\u7d04\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30ec\u30fc\u30b6\u30fc\u6280\u8853\u306e\u9032\u5c55\u306b\u3088\u308a\u3001\u79c1\u305f\u3061\u306e\u751f\u6d3b\u306f\u307e\u3059\u307e\u3059\u4fbf\u5229\u3067\u8c4a\u304b\u306a\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u8208\u5473\u3092\u6301\u3063\u305f\u65b9\u306f\u3001\u3055\u3089\u306b\u6df1\u304f\u5b66\u3093\u3067\u307f\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30ec\u30fc\u30b6\u30fc\u7406\u8ad6\u306e\u57fa\u672c\u539f\u7406\u3001\u69cb\u9020\u3001\u30ec\u30fc\u30b6\u30fc\u767a\u632f\u306e\u4ed5\u7d44\u307f\u3001\u901a\u4fe1\u3001\u533b\u7642\u3001\u7523\u696d\u306a\u3069\u306e\u591a\u5c90\u306b\u308f\u305f\u308b\u5fdc\u7528\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[96],"tags":[97],"class_list":["post-209252","post","type-post","status-publish","format-standard","hentry","category-96","tag-97","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u30ec\u30fc\u30b6\u30fc\u7406\u8ad6 | \u539f\u7406\u3001\u69cb\u9020\u3001\u5fdc\u7528<\/title>\n<meta name=\"description\" content=\"\u30ec\u30fc\u30b6\u30fc\u7406\u8ad6\u306e\u57fa\u672c\u539f\u7406\u3001\u69cb\u9020\u3001\u30ec\u30fc\u30b6\u30fc\u767a\u632f\u306e\u4ed5\u7d44\u307f\u3001\u901a\u4fe1\u3001\u533b\u7642\u3001\u7523\u696d\u306a\u3069\u306e\u591a\u5c90\u306b\u308f\u305f\u308b\u5fdc\u7528\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%ac%e3%83%bc%e3%82%b6%e3%83%bc%e7%90%86%e8%ab%96-%e5%8e%9f%e7%90%86%e3%80%81%e6%a7%8b%e9%80%a0%e3%80%81%e5%bf%9c%e7%94%a8\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" 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