{"id":12,"date":"2023-03-25T19:42:44","date_gmt":"2023-03-25T10:42:44","guid":{"rendered":"https:\/\/cos.korea.ac.kr\/newsletter\/?p=12"},"modified":"2023-04-02T07:13:40","modified_gmt":"2023-04-01T22:13:40","slug":"%ec%b5%9c%ec%9b%90%ec%8b%9d-%ea%b5%90%ec%88%98-%ec%b4%88%ea%b3%a0%ec%86%8d%ec%9c%bc%eb%a1%9c-%ea%b3%a0%ed%95%b4%ec%83%81%eb%8f%84-3d-%ec%9d%b4%eb%af%b8%ec%a7%95%ed%95%98%eb%8a%94-%ea%b4%91%ed%95%99","status":"publish","type":"post","link":"https:\/\/cos.korea.ac.kr\/news\/%ec%b5%9c%ec%9b%90%ec%8b%9d-%ea%b5%90%ec%88%98-%ec%b4%88%ea%b3%a0%ec%86%8d%ec%9c%bc%eb%a1%9c-%ea%b3%a0%ed%95%b4%ec%83%81%eb%8f%84-3d-%ec%9d%b4%eb%af%b8%ec%a7%95%ed%95%98%eb%8a%94-%ea%b4%91%ed%95%99","title":{"rendered":"\ucd5c\uc6d0\uc2dd \uad50\uc218, \ucd08\uace0\uc18d\uc73c\ub85c \uace0\ud574\uc0c1\ub3c4 3D \uc774\ubbf8\uc9d5\ud558\ub294 \uad11\ud559 \ud604\ubbf8\uacbd \uac1c\ubc1c"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"82\" src=\"https:\/\/cos.korea.ac.kr\/newsletter\/wp-content\/uploads\/sites\/9\/2023\/03\/image-1024x82.png\" alt=\"\" class=\"wp-image-13\" srcset=\"https:\/\/cos.korea.ac.kr\/news\/wp-content\/uploads\/sites\/9\/2023\/03\/image-1024x82.png 1024w, https:\/\/cos.korea.ac.kr\/news\/wp-content\/uploads\/sites\/9\/2023\/03\/image-300x24.png 300w, https:\/\/cos.korea.ac.kr\/news\/wp-content\/uploads\/sites\/9\/2023\/03\/image-768x61.png 768w, https:\/\/cos.korea.ac.kr\/news\/wp-content\/uploads\/sites\/9\/2023\/03\/image.png 1076w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\uc77c\ubc18\uc801\uc778 \uc0dd\uccb4 \uc870\uc9c1\uc740 \uad11 \uc0b0\ub780 \ud604\uc0c1\uc774 \uc2ec\ud574 \ub178\uc774\uc988\uac00 \ud074 \ubfd0\ub9cc \uc544\ub2c8\ub77c \ub9e4\uc6b0 \ubcf5\uc7a1\ud55c \uad11\ud559 \uc218\ucc28\ub97c \uc720\ubc1c\ud558\uae30 \ub54c\ubb38\uc5d0 \uc870\uc9c1 \uae4a\uc740 \uacf3\uc758 \ub300\uc0c1\uc5d0 \ub300\ud574\uc11c\ub294 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\uc5f0\uad6c\ub2e8(\ub2e8\uc7a5 \uc870\ubbfc\ud589)&nbsp;\ucd5c\uc6d0\uc2dd \ubd80\uc5f0\uad6c\ub2e8\uc7a5(\uace0\ub824\ub300 \ubb3c\ub9ac\ud559\uacfc \uad50\uc218)&nbsp;\uc5f0\uad6c\ud300\uc740 \uace0\ud574\uc0c1\ub3c4 \uc774\ubbf8\uc9d5\uc744 \uc704\ud55c \uce21\uc815 \ud69f\uc218\ub97c \ub300\ud3ed \uac10\uc18c\uc2dc\ucf1c \ucd08\uace0\uc18d\uc73c\ub85c \uc774\ubbf8\uc9d5\ud560 \uc218 \uc788\ub294 \uad11\ud559 \ud604\ubbf8\uacbd \uae30\uc220\uc744 \uac1c\ubc1c\ud558\uc600\uace0,&nbsp;\uc774\ub97c \uc801\uc6a9\ud558\uc5ec \ub1cc \uc870\uc9c1 \uc548\uc758 \ub9e4\uc6b0 \uac00\ub290\ub2e4\ub780 \uc2e0\uacbd\ub9dd \uad6c\uc870\uc758 \uace0\ud574\uc0c1\ub3c4&nbsp;3\ucc28\uc6d0 \uc774\ubbf8\uc9c0\ub97c \ubcf5\uc6d0\ud558\ub294\ub370 \uc131\uacf5\ud558\uc600\ub2e4.<\/p>\n\n\n\n<p>&nbsp;\uc0dd\uccb4 \uc870\uc9c1\uacfc \uac19\uc740 \uc120\ud615 \ub9e4\uc9c8&nbsp;(linear medium)\uc758 \uad11\ud559\uc801 \ud2b9\uc131\uc744 \uc54c\uc544\ubcf4\uae30 \uc704\ud574\uc11c\ub294 \ub9e4\uc9c8\uc758 \uc5ec\ub7ec \uc704\uce58\uc5d0 \uc810 \uc870\uba85\uc744 \ud558\uac70\ub098 \uc5ec\ub7ec \uac01\ub3c4\uc758 \uc870\uba85\uc744 \ube44\ucd94\uc5b4 \uc0b0\ub780\ub418\uc5b4 \ub098\uc624\ub294 \uc804\uae30\uc7a5&nbsp;(electric field)\uc744 \uce21\uc815\ud55c\ub2e4.&nbsp;\uc785\uc0ac\ub41c \ube5b\uacfc \uc0b0\ub780\ub41c \ube5b\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58 \ub610\ub294 \uac01\ub3c4\ub97c \ubc30\uc5f4\ud574 \ub193\uc740 \ud589\ub82c\uc744 \uc2dc\uc2a4\ud15c \uad6c\uc870\uc5d0 \ub530\ub77c \ubc18\uc0ac \ub610\ub294 \ud22c\uacfc \ud589\ub82c&nbsp;(reflection or transmission matrix)\uc774\ub77c \ud558\uace0,&nbsp;\uc774\ub97c \uce21\uc815\ud558\ub294 \uac83\uc740 \ube5b\uacfc \ub9e4\uc9c8\uc758 \uc0c1\ud638\uc791\uc6a9\uc73c\ub85c\ubd80\ud130 \uc5bb\uc744 \uc218 \uc788\ub294 \ucd5c\ub300\ud55c\uc758 \uc815\ubcf4\ub97c \uad6c\ud558\ub294 \uc791\uc5c5\uc774\ub2e4. \uc5f0\uad6c\uc9c4\uc774 \uac1c\ubc1c\ud55c \ud604\ubbf8\uacbd \uae30\uc220\uc740 \ubc18\uc0ac \ud589\ub82c \uce21\uc815 \uc18d\ub3c4 \ubb38\uc81c\ub97c \ud68d\uae30\uc801\uc73c\ub85c \uac1c\uc120\ud558\uc600\ub2e4.&nbsp;\uae30\uc874\uc758 \uc810 \ub610\ub294 \ud3c9\ud589\ube54 \uc870\uba85 \ub300\uc2e0\uc5d0 \ubb34\uc791\uc704 \ud328\ud134\uc758 \uc870\uba85\uc744 \ud76c\uc18c \uc0d8\ud50c\ub9c1&nbsp;(sparse sampling)\ud558\uc5ec \ubc18\uc0ac \ud589\ub82c\uc744 \uad6c\uc131\ud558\uc600\uace0,&nbsp;\ubc18\uc0ac \ud589\ub82c\uc758 \uc2dc\uac04 \uc5ed\uc804 \ud589\ub82c&nbsp;(time-reversal matrix)\uc744 \uc774\uc6a9\ud558\ub294 \ubc29\ubc95\uc73c\ub85c \ubcf5\uc7a1\ud55c \uad11\ud559 \uc218\ucc28\ub97c \ubcf4\uc815\ud558\uc600\ub2e4.&nbsp;\uadf8\ub9ac\uace0 \uc774\ub97c \ud65c\uc6a9\ud574 \uc6d0\ub798 \ud544\uc694\ud588\ub358 \uce21\uc815 \uc774\ubbf8\uc9c0 \uac1c\uc218\uc758&nbsp;2 %&nbsp;\uc0ac\uc6a9\ub9cc\uc73c\ub85c\ub3c4 \uae30\uc874 \ubc18\uc0ac \ud589\ub82c \uc774\uc6a9 \uc774\ubbf8\uc9d5 \ubc29\ubc95\uc5d0\uc11c\uc640 \uac19\uc740 \uace0\ud574\uc0c1\ub3c4 \uc774\ubbf8\uc9c0\ub97c \ud68d\ub4dd\ud558\uc600\ub2e4.<\/p>\n\n\n\n<p>&nbsp;\uc5f0\uad6c\ub97c \uc218\ud589\ud55c \uc724\uc11d\ucc2c \uc5f0\uad6c\uad50\uc218\uc640 \uc774\ud638\uc900 \uc5f0\uad6c\uc6d0\uc740&nbsp;\u201c\ubb34\uc791\uc704 \ud328\ud134 \uc870\uba85\uacfc \uc2dc\uac04 \uc5ed\uc804 \ud589\ub82c\uc744 \uc774\uc6a9\ud558\uba74 \ud6e8\uc52c \uc801\uc740 \uc218\uc758 \uce21\uc815\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \uace0\ud574\uc0c1\ub3c4 \uc774\ubbf8\uc9c0\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4\u201d\uba70&nbsp;\u201c\uae30\uc874\uc758 \ubc18\uc0ac \ud589\ub82c \uce21\uc815 \uc18d\ub3c4 \ud55c\uacc4\ub97c \uadf9\ubcf5\ud558\uc600\uae30 \ub54c\ubb38\uc5d0 \ucd08\uace0\uc18d&nbsp;3\ucc28\uc6d0 \uc774\ubbf8\uc9d5\uc744 \ud1b5\ud574 \ubcf4\ub2e4 \ube60\ub978 \uc9c4\ub2e8\uacfc \uc2e0\uacbd\uacfc\ud559 \uc5f0\uad6c \ubc1c\uc804\uc744 \uac00\uc838\uc62c \uac83\uc774\ub77c\uace0 \uae30\ub300\ud55c\ub2e4.\u201d\uace0 \ub9d0\ud588\ub2e4.&nbsp;\uc774\ubc88 \uc5f0\uad6c\ub97c \uc774\ub048 \ucd5c\uc6d0\uc2dd \ubd80\uc5f0\uad6c\ub2e8\uc7a5(\uace0\ub824\ub300 \ubb3c\ub9ac\ud559\uacfc \uad50\uc218)\uc740&nbsp;\u201c\ubc18\uc0ac \ud589\ub82c \uc774\ubbf8\uc9d5 \ubc29\ubc95\uc744 \ub354\uc6b1 \ubc1c\uc804\uc2dc\ucf1c \uc758\uc0dd\uba85 \uad11\ud559 \uae30\uc220 \ubd84\uc57c \ud65c\uc6a9 \ubc94\uc704\ub97c \ub113\ud600\ub098\uac08 \uac83\u201d\uc774\ub77c\uace0 \ub9d0\ud588\ub2e4.<\/p>\n\n\n\n<p>&nbsp;\uc5f0\uad6c\uc9c4\uc740 \uc704 \uae30\uc220\uc744 \uc2e4\uc81c \uc758\ub8cc \ud604\uc7a5\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \ud604\ubbf8\uacbd\uc744 \uc18c\ud615\ud654\ud558\ub294 \ub3d9\uc2dc\uc5d0,&nbsp;\uc9c8\ubcd1\uc758 \uc2e4\uc2dc\uac04 \uc870\uae30 \uc9c4\ub2e8\uc5d0 \uc801\uc6a9 \uac00\ub2a5\ud558\ub3c4\ub85d \uc900\ube44\uc911\uc5d0 \uc788\ub2e4.&nbsp;\ubcf8 \uc5f0\uad6c \uacb0\uacfc\ub294 \uad6d\uc81c\ud559\uc220\uc9c0&nbsp;Light: Science &amp; Applications (LSA, IF 17.782) 1\uc6d4&nbsp;14\uc77c\uc790 \uc628\ub77c\uc778 \ud310\uc5d0 \uac8c\uc7ac\ub410\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc77c\ubc18\uc801\uc778 \uc0dd\uccb4 \uc870\uc9c1\uc740 \uad11 \uc0b0\ub780 \ud604\uc0c1\uc774 \uc2ec\ud574 \ub178\uc774\uc988\uac00 \ud074 \ubfd0\ub9cc \uc544\ub2c8\ub77c \ub9e4\uc6b0 \ubcf5\uc7a1\ud55c \uad11\ud559 \uc218\ucc28\ub97c \uc720\ubc1c\ud558\uae30 \ub54c\ubb38\uc5d0 \uc870\uc9c1 \uae4a\uc740 \uacf3\uc758 \ub300\uc0c1\uc5d0 \ub300\ud574\uc11c\ub294 \uace0\ud574\uc0c1\ub3c4 \uc774\ubbf8\uc9d5\uc774 \uc5b4\ub824\uc6e0\ub2e4.&nbsp;\ucd5c\uadfc \uc774\ub97c \uadf9\ubcf5\ud558\uae30 \uc704\ud55c \ub2e4\uc591\ud55c \uc5f0\uad6c\ub4e4\uc774 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