\u6628\u65e5\u306f\u6c17\u4f53\u5206\u5b50\u306e\u30bb\u30f3\u30b5\u30fc\u3068\u3057\u3066\u89e6\u5a92\u9178\u5316\u5f0f\u3001\u534a\u5c0e\u4f53\u5f0f\u3001\u96fb\u6c60\u5f0f\u3092\u3068\u308a\u3042\u3052\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306f\u88ab\u691c\u51fa\u5206\u5b50\u3092\u9178\u5316\u9084\u5143\u306b\u5229\u7528\u3057\u3066\u71b1\u3084\u96fb\u6d41\u3068\u3057\u3066\u691c\u77e5\u3057\u307e\u3059\u3002\u305d\u306e\u4ed6\u306b\u3082\u3044\u308d\u3044\u308d\u3042\u308a\u307e\u3059\u304c\u3001\u5206\u5b50\u56fa\u6709\u306e\u5149\u5438\u53ce\u3084\u767a\u5149\u3092\u5229\u7528\u3059\u308b\u3082\u306e\u3082\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u30b3\u30ed\u30ca\u3067\u63db\u6c17\u306e\u91cd\u8981\u6027\u304c\u6307\u6458\u3055\u308c\u305f\u7d50\u679c\u3001\u6559\u5ba4\u3084\u5927\u898f\u6a21\u5e97\u8217\u306a\u3069\u306bCO2\u30bb\u30f3\u30b5\u30fc\u304c\u8a2d\u7f6e\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3042\u308c\u306fCO2\u306e\u8fd1\u8d64\u5916\u7dda\u306e\u5438\u53ce\uff08\u6ce2\u95774.26\u03bcm\uff09\u306e\u5f37\u5ea6\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u5149\u6e90\u306f\u30cf\u30ed\u30b2\u30f3\u30e9\u30f3\u30d7\u306b\u5e72\u6e09\u30d5\u30a3\u30eb\u30bf\u30fc(4.3\u03bcm\u3068CO2\u304c\u5438\u53ce\u3057\u306a\u30443.9\u03bcm\u306a\u3069)\u3092\u3064\u3051\u3066\u3001\u900f\u904e\u5149\u306e\u5f37\u5ea6\u3092\u6bd4\u8f03\u3059\u308c\u3070Lambert-Beer\u5247\u3067CO2\u306e\u6fc3\u5ea6\u3092\u7b97\u51fa\u3067\u304d\u307e\u3059\u3002\u611f\u5ea6\u306f10ppm\u306e\u6841\u306b\u306a\u308a\u307e\u3059\u3002\u3082\u3063\u3068\u611f\u5ea6\u3092\u9ad8\u304f\u3057\u305f\u3051\u308c\u3070\u3001\u93e1\u3084\u534a\u900f\u93e1\u3092\u8907\u6570\u4f7f\u3063\u3066\u5149\u8def\u9577\uff08\u5149\u304c\u691c\u51fa\u30ac\u30b9\u3092\u901a\u308b\u56de\u6570\uff09\u3092\u9577\u304f\u3059\u308c\u3070\u6fc3\u5ea6\u304c\u8584\u304f\u3066\u3082\u7e70\u308a\u8fd4\u3057\u5438\u53ce\u304c\u8d77\u3053\u308b\u306e\u3067\u5438\u53ce\u3092\u7a3c\u3052\u307e\u3059\u3002
\n\u5149\u8def\u9577\u3092\u7121\u9650\u306b\u9577\u304f\u3057\u305f\u3082\u306e\u304c\u300c\u5149\u5171\u632f\u5668\u3000optical cavity\u300d\u3067\u3059\u304c\u3001\u5149\u304c\u4f55\u56de\u5f80\u5fa9\u3057\u3066\u3044\u308b\u304b\u304c\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u5438\u53ce\u5f37\u5ea6\u3092\u6821\u6b63\u3059\u308b\u306e\u304c\u9762\u5012\u3067\u3059\u3002\u3046\u307e\u3044\u3084\u308a\u65b9\u304c\u3042\u308a\u307e\u3059\u3002\u5171\u632f\u5668\u306b\u8a66\u6599\u30ac\u30b9\u3092\u3044\u308c\u3066\u304a\u304d\u3001\u5149\u3092\u5165\u308c\u3066\u304b\u3089\u7a81\u7136\u5149\u3092\u906e\u65ad\u3057\u307e\u3059\u3002\u305d\u306e\u6642\u306b\u3001\u53cd\u5bfe\u5074\u304b\u3089\u51fa\u3066\u304f\u308b\u5149\u306e\u5f37\u5ea6\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u308b\u3068\u3001\u5165\u5c04\u5149\u304c\u906e\u65ad\u3055\u308c\u3066\u304b\u3089\u5f37\u5ea6\u304c\u6e1b\u8870\u3057\u3066\u3044\u304f\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u6c17\u4f53\u306e\u5c48\u6298\u7387\u304b\u3089\u5149\u901f\u5ea6\u304c\u308f\u304b\u308a\u307e\u3059\u304b\u3089\u3001\u5149\u306e\u6e1b\u8870\u306e\u69d8\u5b50\u304b\u3089\u3001\u5149\u306e\u5438\u53ce\u5f37\u5ea6\u3068\u5171\u632f\u5668\u4e2d\u306e\u5149\u306e\u6ede\u5728\u6642\u9593\u306e\u4e21\u65b9\u306e\u60c5\u5831\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u30ec\u30fc\u30b6\u30fc\u5149\u3092\u4f7f\u3044\u5171\u632f\u5668\u3092\u305d\u306e\u6ce2\u9577\u3067\u5e72\u6e09\u304c\u5f37\u3081\u5408\u3046\u3088\u3046\u306b\u30bb\u30c3\u30c8\u3057\u307e\u3059\u3002cavity ring-down spectroscopy (\u65e5\u672c\u8a9e\u3067\u3082\u82f1\u8a9e\u3092\u30ab\u30bf\u30ab\u30ca\u3067\u4f7f\u3046\u3002CRDS)\u3068\u547c\u3070\u308c\u3066\u3044\u3066\u3001\u5b9f\u7528\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\n\u88c5\u7f6e\u306f\u4f55\u3068\u304b\u7247\u624b\u3067\u6301\u3066\u308b\u7a0b\u5ea6\u3067\u3001\u7cbe\u5bc6\u306a\u6a5f\u69cb\u3092\u5805\u7262\u306b\u4f5c\u3089\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3053\u3068\u3001\u5ba4\u6e29\u5909\u5316\u306b\u3088\u308b\u71b1\u81a8\u5f35\u306e\u5f71\u97ff\u3092\u907f\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u305f\u3081\u3001\u304b\u306a\u308a\u9ad8\u4fa1\u3067\u3059(1000\u4e07\u5186\u306e\u6841)\u3002
\n\u6ce2\u9577\u53ef\u5909\u30ec\u30fc\u30b6\u30fc\u3092\u4f7f\u3063\u3066\u7279\u5b9a\u306e\u539f\u5b50\u3084\u5206\u5b50\u3092\u52b1\u8d77\u3055\u305b\u3066\u304b\u3089\u86cd\u5149\u3092\u6e2c\u5b9a\u3059\u308blaser induced fluorescene (LIF)\u3082\u53e4\u304f\u304b\u3089\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u539f\u7406\u306f\u5358\u7d14\u3067\u3059\u304c\u3001\u5358\u7d14\u306a\u5206\u5b50\u3084\u539f\u5b50\u306b\u5bfe\u3057\u3066\u306f\u305d\u308c\u3060\u3051\u3092\u5206\u6790\u3067\u304d\u308b\u306e\u3067\u5f37\u529b\u306a\u624b\u6cd5\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u786b\u5316\u7269\u306eCVD\u306e\u969b\u306bS\u539f\u5b50\u3001S2\u5206\u5b50\u3001S4\u5206\u5b50\u304c\u3044\u308b\u306f\u305a\u3067\u3059\u304c\u305d\u308c\u3089\u306e\u6fc3\u5ea6\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6700\u8fd1\u306f\u30d1\u30eb\u30b9\u30ec\u30fc\u30b6\u30fc\u304c\u5c0f\u578b\u5316\u3057\u305f\u306e\u3067\u6ce2\u9577\u53ef\u5909\u3082\u697d\u306b\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u305d\u308c\u3067\u3082\u6ce2\u9577\u5909\u63db\u88c5\u7f6e\u306f\u9ad8\u4fa1\u306a\u306e\u3067\uff08\u975e\u7dda\u5f62\u5149\u5b66\u7d50\u6676\u3092\u7d44\u307f\u5408\u308f\u305b\u308c\u3070\u4f5c\u308c\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u8abf\u6574\u304c\u305f\u3044\u3078\u3093\uff09\u3001\u4e00\u5f0f\u305d\u308d\u3048\u308b\u306b\u306f\u5c0f\u3055\u3044\u5bb6\u304c\u8cb7\u3048\u308b\u304f\u3089\u3044\u306e\u304a\u91d1\u304c\u304b\u304b\u308b\u306f\u305a\u3067\u3059\u3002
\n\u91cd\u8981\u306a\u5b9f\u9a13\u3068\u8a00\u3048\u307e\u3059\u304c\u3001\u3042\u307e\u308a\u3084\u3063\u3066\u3044\u308b\u4eba\u3092\u8fd1\u304f\u3067\u898b\u304b\u3051\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u53cd\u5fdc\u6a5f\u69cb\u3092\u77e5\u308b\u3088\u308a\u3082\u8a66\u884c\u932f\u8aa4\u3067\u7269\u3092\u4f5c\u3063\u305f\u307b\u3046\u304c\u901f\u3044\uff08\u5c11\u306a\u304f\u3068\u3082\u8a2d\u5099\u6295\u8cc7\u304c\u8981\u3089\u306a\u3044\uff09\u3068\u3044\u3046\u3053\u3068\u3067\u3057\u3087\u3046\u304b\u3002\u8a08\u7b97\u3082\u3067\u304d\u307e\u3059\u304c\u3001\u4e0d\u78ba\u5b9a\u8981\u7d20\u304c\u5927\u304d\u3044\u306e\u3067LIF\u5b9f\u9a13\u3067\u76f4\u63a5\u30c1\u30a7\u30c3\u30af\u3057\u305f\u304f\u306a\u308a\u307e\u3059\u3002\u3084\u3063\u3066\u307f\u305f\u3044\u5b9f\u9a13\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n
\u82f1\u8a9e\u306f\u3001https:\/\/en.wikipedia.org\/wiki\/Cavity_ring-down_spectroscopy
\nring-down 2\u679a\u306e\u93e1\u3092\u5f80\u5fa9\u3059\u308b\u5f62\u614b\u304c\u591a\u3044\u3067\u3059\u304c\u3001\u4e09\u89d2\u5f62\u3084\u305d\u308c\u4ee5\u4e0a\u306e\u591a\u89d2\u5f62\u72b6\u306b\u5149\u3092\u3050\u308b\u3050\u308b\u56de\u3059\u5171\u632f\u5668\u3082\u3042\u308a\u3001\u305d\u306e\u5834\u5408\u306fring-down\u306e\u8a00\u8449\u3069\u304a\u308a\u3067\u56de\u308a\u306a\u304c\u3089\u5f31\u307e\u3063\u3066\u3044\u304f\u611f\u3058\u3067\u3059\u3002\u305d\u306e\u8fba\u304b\u3089\u3064\u3044\u305f\u540d\u79f0\u304b\u306a\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u6839\u62e0\u306f\u8abf\u3079\u3066\u3044\u307e\u305b\u3093\u3002
\nwhispering gallery mode cavity \u3055\u3055\u3084\u304d\u56de\u5eca\u30e2\u30fc\u30c9\u306e\u5171\u632f\u5668\u3000\u4e0a\u8a18\u306e\u591a\u89d2\u5f62\u3092\u7121\u9650\u306b\u3059\u308b\u3068\u5186\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3082\u5171\u632f\u5668\u3068\u3057\u3066\u4f7f\u308f\u308c\u307e\u3059\u3002\u7531\u6765\u306f\u305f\u3057\u304b\u30a4\u30ae\u30ea\u30b9\u306e\u30bb\u30f3\u30c8\u30dd\u30fc\u30eb\u5927\u8056\u5802\u3067\u58c1\u306e\u8fd1\u304f\u3067\u8a71\u3057\u305f\u58f0\u304c\u975e\u5e38\u306b\u9060\u304f\u307e\u3067\u5c4a\u304f\u3053\u3068\u304b\u3089\u3002\u7c8b\u306a\u547d\u540d\u3067\u3059\u3002\u30dd\u30ea\u30de\u30fc\u5fae\u7c92\u5b50\u306f\u7c21\u5358\u306b\u771f\u7403\u306b\u306a\u308b\u306e\u3067\u3001\u30ec\u30fc\u30b6\u30fc\u3068\u7d44\u307f\u5408\u308f\u305b\u305f\u5b9f\u9a13\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002
\nhttps:\/\/ja.wikipedia.org\/wiki\/%E3%81%95%E3%81%95%E3%82%84%E3%81%8D%E3%81%AE%E5%9B%9E%E5%BB%8A
\nabsolute optical extinction coefficient \u7d76\u5bfe\u5149\u5b66\u6d88\u8870\u4fc2\u6570
\nand in tern to determine mole fractions down to the parts per trillion level. \u305d\u3057\u3066\u30e2\u30eb\u5206\u7387\u3092ppt (1\u5146\u5206\u306e1)\u306e\u30ec\u30d9\u30eb\u307e\u3067\u6c7a\u5b9a\u3059\u308b\u306e\u306b\u4f7f\u3046
\na high-finesse optical cavity \u9ad8\u30d5\u30a3\u30cd\u30b9\u306e\u5149\u5171\u632f\u5668\u3000\u3000\u30d5\u30a3\u30cd\u30b9\u3000\u306f\u93e1\u306e\u5e73\u884c\u5ea6\u3084\u53cd\u5c04\u7387\u304c\u9ad8\u304f\u3066\u5149\u304c\u591a\u6570\u56de\u5f80\u5fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u6027\u8cea\u3092\u8868\u3059\u5149\u5171\u632f\u5668\u306b\u5bfe\u3059\u308b\u5f62\u5bb9\u8a5e\u3002
\n“There are two main advantages to CRDS over other absorption methods:First, it is not affected by fluctuations in the laser intensity.”
\nmain advantages \u4e3b\u8981\u306a\u5229\u70b9
\nis not affected by ~\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044
\nfluctuations \u63fa\u3089\u304e
\n“Second, it is very sensitive due to its long pathlength.”
\n\u884c\u8def\u9577\u304c\u9577\u3044\u305f\u3081\u975e\u5e38\u306b\u9ad8\u611f\u5ea6\u306b\u306a\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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