{"id":26514,"date":"2017-01-24T00:13:48","date_gmt":"2017-01-23T16:13:48","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=26514"},"modified":"2018-07-29T00:24:05","modified_gmt":"2018-07-28T16:24:05","slug":"%e9%9b%b7%e5%b0%84%e7%b3%bb%e5%88%97%e5%9b%9b%ef%bc%9a%e5%8f%8d%e9%9b%b7%e5%b0%84","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=26514","title":{"rendered":"\u96f7\u5c04\u7cfb\u5217\u56db\uff1a\u53cd\u96f7\u5c04"},"content":{"rendered":"
\"12161\"
\u5716\u4e00\u3000(Reprinted by permission from Macmillan Publishers Ltd: Nature 467: 37\u201339. \u00a9 2010.)<\/figcaption><\/figure>\n

\u25a0\u96f7\u5c04\u7531\u65bc\u5176\u7279\u6b8a\u8a2d\u8a08\u53ef\u767c\u51fa\u5177\u540c\u8abf\u6027\u7684\u5149\uff0c\u76f8\u5c0d\u61c9\u7684\uff0c\u80fd\u4e0d\u80fd\u6709\u4e00\u500b\u88dd\u7f6e\u53ea\u5438\u6536\u5177\u540c\u8abf\u6027\u7684\u5149\u5462\uff1f<\/strong><\/span><\/p>\n

\u64b0\u6587\uff5c<\/strong>\u65b9\u7a0b\u6bc5<\/p>\n

\u6211\u5011\u5728\u96f7\u5c04\u7cfb\u5217\u4e00\u5230\u4e09<\/a>\u8ac7\u5230\u4e86\u96f7\u5c04\u5149\u8207\u4e00\u822c\u5149\u6e90\u7684\u4e0d\u540c\uff0c\u6700\u5927\u7684\u5dee\u7570\u4fbf\u662f\u96f7\u5c04\u5149\u5177\u540c\u8abf\u6027(coherence)\u3002\u53cd\u96f7\u5c04\uff0c\u53c8\u7a31\u70ba\u76f8\u5e72\u5b8c\u7f8e\u5438\u6536\u5668(coherent perfect absorber, CPA)\uff0c\u662f\u4e00\u500b\u53ea\u5438\u6536\u540c\u8abf\u5149\u7684\u88dd\u7f6e\uff0c\u7531\u7f8e\u570b\u8036\u9b6f\u5927\u5b78(Yale University) Douglas Stone\u6559\u6388\u57282010\u5e74\u63d0\u51fa\u7406\u8ad6\u5047\u8a2d\uff0c\u4e26\u65bc2011\u5e74\u5229\u7528\u5be6\u9a57\u8b49\u5be6\u4e26\u767c\u8868\u5728\u300a\u79d1\u5b78\u300b(Science<\/em>)\u671f\u520a\u30022011\u5e74\u570b\u5167\u6cdb\u79d1\u5b78\u4e5f\u6709\u91dd\u5c0d\u8a72\u7814\u7a76\u9032\u884c\u5831\u5c0e\uff0c\u4f46\u4e26\u6c92\u6709\u89e3\u91cb\u5176\u6a5f\u5236\u3002\u6211\u5011\u5c07\u7528\u96f7\u5c04\u7cfb\u5217\u4e00\u5230\u4e09\u5960\u57fa\u7684\u57fa\u672c\u89c0\u5ff5\u4f86\u89e3\u91cb\u5176\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n

\u53cd\u96f7\u5c04\u7684\u904b\u4f5c\u539f\u7406\u5982\u5716\u4e00\uff1a\u5de6\u53f3\u5404\u6253\u9032\u4e00\u9053\u5149(Light in)\uff0c\u4e2d\u9593\u662f\u4e00\u5171\u632f\u8154(Resonator mirror) \u4e14\u5176\u6750\u6599\u5177\u6709\u5438\u6536\u80fd\u529b(Absorbing material)\u3002\u7576\u9019\u5169\u9053\u5149\u90fd\u5177\u540c\u8abf\u6027\uff0c\u4e14\u76f8\u4f4d(phase)\u6b63\u78ba\u6642\uff0c\u5169\u9053\u5149\u6703\u5728\u5171\u632f\u8154\u5167\u5f62\u6210\u5e72\u6d89\uff0c\u4e26\u5c07\u80fd\u91cf\u901a\u901a\u8f49\u5316\u6210\u71b1\u80fd\u3002<\/p>\n

\u6709\u9ede\u96e3\u61c2\uff0c\u5c0d\u5427\uff1f<\/p>\n

\u56de\u982d\u5148\u4f86\u770b\u770b\u96f7\u5c04\u4e09\u8981\u7d20\uff1a\u6fc0\u767c\u4f86\u6e90\u3001\u589e\u76ca\u7269\u8cea\u3001\u5171\u632f\u8154\u3002<\/strong><\/p>\n

\u25cf\u96f7\u5c04\u7684\u76ee\u7684\u662f\u653e\u5927\uff0c\u56e0\u6b64\u9700\u8981\u5916\u754c\u7684\u6fc0\u767c\u4f86\u6e90\u63d0\u4f9b\u80fd\u91cf\uff1b\u4f46\u53cd\u96f7\u5c04\u65e8\u5728\u6d88\u6ec5\u96f7\u5c04\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u6fc0\u767c\u4f86\u6e90\u3002<\/p>\n

\u25cf\u589e\u76ca\u7269\u8cea\u5728\u96f7\u5c04\u4e2d\u53ef\u4ee5\u5c07\u5149\u5b50\u6578\u91cf\u653e\u5927\uff0c\u800c\u5728\u53cd\u96f7\u5c04\u4e2d\u5fc5\u9808\u6709\u5438\u6536\u7269\u8cea\u628a\u5149\u5b50\u6578\u91cf\u6e1b\u5c11\u3002\u4f46\u662f\uff01\u4f46\u662f\uff01\u4f46\u662f\uff01\u9019\u500b\u6750\u6599\u7684\u5438\u6536\u80fd\u529b\u53c8\u4e0d\u80fd\u592a\u5f37\uff0c\u56e0\u70ba\u5982\u679c\u6750\u6599\u672c\u8eab\u5438\u6536\u80fd\u529b\u592a\u5f37\uff0c\u6703\u628a\u540c\u8abf\u6027\u53ca\u975e\u540c\u8abf\u6027\u7684\u5149\u901a\u901a\u5438\u6389\uff0c\u5c31\u7121\u6cd5\u53ea\u5438\u540c\u8abf\u6027\u7684\u5149\uff0c\u653e\u8d70\u4e0d\u5177\u540c\u8abf\u6027\u7684\u5149\u4e86\u3002<\/p>\n

\u25cf\u56e0\u6b64\u5171\u632f\u8154\u4fbf\u662f\u95dc\u9375\uff01\u53ea\u6709\u5177\u540c\u8abf\u6027\u4e14\u6ce2\u9577\u7b26\u5408\u5171\u632f\u8154\u6240\u9700\u7684\u5149\u624d\u6703\u5f62\u6210\u5171\u632f\u3002\u7576\u5171\u632f\u8154\u7684\u6750\u6599\u5177\u5438\u6536\u80fd\u529b\uff0c\u4f46\u5438\u6536\u80fd\u529b\u53c8\u4e0d\u5f37\u6642\uff0c\u88ab\u5171\u632f\u8154\u9078\u64c7\u7684\u5149\u6ce2\u5c31\u6703\u88ab\u56f0\u5728\u88e1\u9762\uff0c\u8b93\u5438\u6536\u6750\u6599\u51cc\u9072\uff0c\u628a\u5149\u80fd\u5438\u5149\u3002\u81f3\u65bc\u5176\u4ed6\u7121\u6cd5\u5f62\u6210\u5171\u632f\u7684\u5149\uff0c\u53ef\u4ee5\u9806\u5229\u901a\u904e(\u96d6\u7136\u6703\u640d\u5931\u4e00\u9ede\u9ede\u9ede)\u3002<\/p>\n

Douglas Stone\u6559\u6388\u767c\u8868\u65bc\u300a\u79d1\u5b78\u300b\u7684\u7814\u7a76\u4f7f\u7528\u7684\u5438\u6536\u7269\u8cea\u53ca\u5171\u632f\u8154\u7686\u70ba\u77fd\u6676\u5713\uff0c\u5171\u632f\u8154\u5bec\u5ea6\u76f8\u7576\u65bc\u77fd\u6676\u5713\u7684\u539a\u5ea6\u3002\u4f7f\u7528\u7684\u5149\u6ce2\u9577\u7d04\u57281000nm\u5de6\u53f3\uff0c\u9019\u500b\u6ce2\u6bb5\u77fd\u5177\u6709\u5fae\u5f31\u7684\u5438\u6536\uff0c\u4e00\u9053\u5149\u6253\u4e0a\u53bb\u5927\u90e8\u5206\u7684\u5149\u5b50\u90fd\u53ef\u4ee5\u7a7f\u900f(\u5c31\u50cf\u7a7f\u904e\u73bb\u7483\u4e00\u6a23)\uff0c\u7b26\u5408\u53cd\u96f7\u5c04\u6240\u9700\u7279\u6027\u3002<\/p>\n

\"\u5716\u4e8c\"
\u5716\u4e8c<\/figcaption><\/figure>\n

\u7576\u77fd\u6676\u5713\u7684\u5169\u908a\u5404\u6253\u4e00\u9053\u5149\u9032\u4f86(\u5716\u4e8c(a)\uff0c\u7d05\u8272\u7bad\u982d\uff0c\u5169\u9053\u5149\u6ce2\u9577\u76f8\u540c)\uff0c\u76f4\u89ba\u4e0a\u6703\u770b\u5230\u5169\u9053\u5149\u7686\u7a7f\u900f(\u6dfa\u6843\u7d05\u8272\u7bad\u982d)\uff0c\u82e5\u662f\u5176\u4e2d\u4e00\u9053\u5149\u4e0d\u5177\u540c\u8abf\u6027\uff0c\u4fbf\u662f\u9019\u500b\u7d50\u679c\u3002\u4f46\u82e5\u662f\u5169\u9053\u5149\u7686\u5177\u540c\u8abf\u6027\uff0c\u4e14\u5169\u8005\u76f8\u4f4d\u525b\u525b\u597d\u5728\u5171\u632f\u8154\u5167\u5f62\u6210\u5e72\u6d89\u4e26\u5171\u632f\uff0c\u9019\u5169\u9053\u5149\u5c04\u5165\u77fd\u6676\u5713\u8584\u7247\u5f8c\u4fbf\u90fd\u6703\u6d88\u5931\u4e0d\u898b\uff0c\u5982\u5716\u4e8c(b)\u3002<\/p>\n

\u4f7f\u7528\u5169\u9053\u5149\u7684\u76ee\u7684\u662f\u53ef\u4ee5\u9032\u884c\u8f49\u63db(switch)\u53ca\u8abf\u8b8a(modulate)\uff0c\u5c31\u7b97\u5169\u9053\u5149\u90fd\u662f\u96f7\u5c04\u5149\u4e14\u6ce2\u9577\u76f8\u540c\uff0c\u9762\u5c0d\u9762\u5c04\u5165\u77fd\u6676\u5713\u4e5f\u4e0d\u898b\u5f97\u6703\u88ab\u5438\u6536\uff0c\u5169\u8005\u76f8\u4f4d\u5dee\u5fc5\u9808\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u624d\u884c\u3002\u4e5f\u56e0\u6b64\u53ea\u8981\u8abf\u6574\u5169\u8005\u7684\u76f8\u4f4d\u5dee\uff0c\u7576\u7b26\u5408\u689d\u4ef6\u6642\u5169\u9053\u5149\u90fd\u6703\u88ab\u6d88\u6ec5\uff1b\u7576\u76f8\u4f4d\u5dee\u504f\u79fb\u7406\u60f3\u503c\u6642\u5149\u4e0d\u6703\u88ab\u5438\u6536\u6b86\u76e1\uff0c\u9019\u6a23\u7684\u88dd\u7f6e\u53ef\u4ee5\u505a\u70ba\u300c\u5149\u5b78\u958b\u95dc\u300d\u3002<\/p>\n

\u6574\u5957\u904e\u7a0b\u8ddf\u7522\u751f\u96f7\u5c04\u7684\u65b9\u6cd5\u975e\u5e38\u76f8\u4f3c\uff0c\u9700\u8981\u4e00\u500b\u5171\u632f\u8154\u9078\u53d6\u6ce2\u9577\u4e26\u5132\u5b58\u80fd\u91cf\u3001\u4e00\u500b\u8207\u589e\u76ca\u6750\u6599\u76f8\u5c0d\u7684\u5438\u6536\u6750\u6599\uff0c\u628a\u5132\u5b58\u5728\u5171\u632f\u8154\u5167\u7684\u5149\u80fd\u4e00\u9ede\u4e00\u6ef4\u69a8\u4e7e\uff1b\u5438\u6536\u6750\u6599\u7684\u5438\u6536\u80fd\u529b\u4e0d\u80fd\u592a\u5f37\uff0c\u624d\u80fd\u8b93\u975e\u540c\u8abf\u6027\u7684\u5149\u4ee5\u53ca\u4e0d\u5c6c\u65bc\u5171\u632f\u8154\u5171\u632f\u6ce2\u9577\u7684\u540c\u8abf\u5149\u4e00\u4f75\u901a\u904e\uff0c\u5f62\u6210\u4e00\u500b\u53ea\u6703\u5c0d\u7279\u5b9a\u6ce2\u9577\u4e14\u5fc5\u9808\u5177\u540c\u8abf\u6027\u5149\u5177\u6709\u5f37\u70c8\u5438\u6536\u7684\u300c\u53cd\u96f7\u5c04\u300d\u3002<\/p>\n

\u81f3\u65bc\u9019\u500b\u6771\u897f\u6709\u4ec0\u9ebc\u7528\u5462\uff1f\u65e5\u524d\u52a0\u5dde\u67cf\u514b\u840a\u5927\u5b78\u5c07\u9019\u500b\u6982\u5ff5\u61c9\u7528\u65bc\u5149\u5b78\u6676\u7247\uff0c\u4f5c\u70ba\u901a\u8a0a\u5149\u6e90\u3001\u653e\u5927\u5668\u53ca\u8abf\u8b8a\u5668\u7b49\u7b49\u5143\u4ef6\u4e4b\u7528\uff0c\u767c\u8868\u5728 Nature Photonics<\/em> \u671f\u520a\u4e0a\uff0c\u56e0\u6b64\u53cd\u96f7\u5c04\u4e5f\u6709\u53ef\u80fd\u6703\u662f\u672a\u4f86\u5149\u5b78\u901a\u8a0a\u91cd\u8981\u5143\u4ef6\u3002<\/p>\n

 <\/p>\n

\u53c3\u8003\u8cc7\u6599\uff1a<\/strong><\/p>\n

    \n
  1. Wan, Wenjie, Yidong Chong, Li Ge, Heeso Noh, A. Douglas Stone, and Hui Cao. \"Time-reversed lasing and interferometric control of absorption.\"Science<\/em>\u00a0331, no. 6019 (2011): 889-892.<\/li>\n
  2. Chong, Y. D., Li Ge, Hui Cao, and A. Douglas Stone. \"Coherent perfect absorbers: time-reversed lasers.\"Physical review letters<\/em>\u00a0105, no. 5 (2010): 053901.<\/li>\n
  3. Gmachl, Claire F. \"Laser science: suckers for light.\"Nature<\/em>\u00a0467, no. 7311 (2010): 37-39.<\/li>\n
  4. Wong, Zi Jing, Ye-Long Xu, Jeongmin Kim, Kevin O'Brien, Yuan Wang, Liang Feng, and Xiang Zhang. \"Lasing and anti-lasing in a single cavity.\"Nature Photonics<\/em>\u00a010, no. 12 (2016): 796-801.<\/li>\n
  5. \u201c\u7269\u7406\u5b78\u5bb6\u7814\u767c\u51fa\u53cd\u96f7\u5c04\u88dd\u7f6e<\/a>\u201d, \u300a\u6cdb\u79d1\u5b78\u300b<\/em><\/li>\n<\/ol>\n

    --<\/strong>
    \n\u4f5c\u8005\uff1a\u65b9\u7a0b\u6bc5 \u79d1\u6559\u4e2d\u5fc3\u7279\u7d04\u5beb\u624b\uff0c\u5f9e\u4e8b\u79d1\u666e\u6587\u7ae0\u5beb\u4f5c\u3002<\/strong><\/span><\/p>\n

     <\/p>\n

    \"\u52a0\u5165\u597d\u53cb\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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