Áñ°Üã±â Ãß°¡     ½ÃÀÛÆäÀÌÁö·Î ¼³Á¤ óÀ½À¸·Î  l  ·Î±×ÀΠ l  È¸¿ø°¡ÀÔ  l  »çÀÌÆ®¸Ê

>
ȸ¿ø°¡ÀÔ   l   ¾ÆÀ̵ð/ºñ¹Ð¹øȣã±â
¡®Á¦38ȸ 2023³â »ó¹Ý±â ...
¡®Á¦37ȸ 2022³â ÇϹݱâ ...
Á¦37ȸ ¡¸2022³â ÇϹݱâ ...
 
HOME > ÇؿܽÃÀåÁ¤º¸ > ÃֽŴº½º
[2014] [´ºÁú·£µå] ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÑ °Å´ë Æĵµ ¿¬±¸
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2014.10.06 Á¶È¸¼ö 678
ÆÄÀÏ÷ºÎ
[´ºÁú·£µå] ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÑ °Å´ë Æĵµ ¿¬±¸
 
´ºÁú·£µå ¿ÁÅ©·£µå(Auckland) ´ëÇÐ ¹°¸®ÇÐÀÚÀÎ Miro Erkintalo°¡ À̲ô´Â ±¹Á¦ °øµ¿ ¿¬±¸ÁøÀº ·¹ÀÌÀú¿Í ±¤¼¶À¯¸¦ ÀÌ¿ëÇÏ¿© ´ë¾ç¿¡¼­ °Å´ë Æĵµ(Rogue wave)¸¦ ÀÌÇØÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» °³¹ßÇÏ¿´´Ù. ´ºÁú·£µå ¿ÁÅ©·£µå(Auckland) ´ëÇÐ ¹°¸®ÇÐÀÚÀÎ Miro Erkintalo°¡ À̲ô´Â ±¹Á¦ °øµ¿ ¿¬±¸ÁøÀº ·¹ÀÌÀú¿Í ±¤¼¶À¯¸¦ ÀÌ¿ëÇÏ¿© ´ë¾ç¿¡¼­ °Å´ë Æĵµ¸¦ ÀÌÇØÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» °³¹ßÇÏ¿´´Ù.
 
°Å´ëÆĵµ´Â º¸Åë ¹Ù´Ù¿¡¼­ »çÀü °æ°í ¾øÀÌ Çü¼ºµÇ´Â ¸Å¿ì Å« ÆĵµÀÌ¸ç ¸Å¿ì Æı«ÀûÀÎ ÆÄ¿ö¸¦ °¡Áú ¼ö ÀÖ´Ù. ±×°ÍµéÀº ¿¹Àü¿¡´Â À̾߱â·Î ÀüÇس»·Á ¿ÔÁö¸¸ ÀÌÁ¦ °úÇÐ ±â¼úÀÇ ¹ß´Þ·Î ±×°ÍÀÇ Á¸À縦 Á÷Á¢ÀûÀ¸·Î °üÃøÇÔÀ¸·Î½á Áõ¸íÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. ÀÌ·± °Ì³ª´Â Æĵµ´Â ¹Ù´Ù¸¦ Ç×ÇØÇÏ´Â ¹è¿¡°Ô À§ÇùÀÌ µÈ´Ù°í °£Áֵǰí ÀÖÀ¸¸ç ¼ö¸¹Àº ÇØ¾ç »ç°íÀÇ ¿øÀÎÀ̶ó°í »ý°¢µÇ°í ÀÖ´Ù.
 
°Å´ëÇÑ Æĵµ´Â ƯÈ÷ ±¤ÇÐÀ» ¿¬±¸ÇÏ´Â ¹°¸®ÇÐÀڵ鿡°Ô Èï¹Ì¸¦ ÁÖ°í ÀÖ´Ù. ±× ÀÌÀ¯´Â ·¹ÀÌÀú ºûÀÌ ¹Ù´Ù¿¡¼­ÀÇ Æĵµ¿Í ¸Å¿ì ºñ½ÁÇÏ°Ô °Åµ¿Çϱ⠶§¹®ÀÌ´Ù. ƯÁ¤ÇÑ Á¶°Ç ÇÏ¿¡¼­ ºû°ú ¹Ù´ÙÀÇ Æĵµ¸¦ ±â¼úÇÏ´Â ¼öÇÐÀû ¸ðµ¨Àº µ¿ÀÏÇÏ´Ù. ÀÌ·± Á¶°Ç ÇÏ¿¡¼­ ±¤ÇÐÀû ºÒ¾ÈÁ¤¼ºÀº ¹Ù´Ù¿¡¼­ º¸ÀÌ´Â °Å´ë Æĵµ¿Í »óÀÀÇÏ´Â ±¤ÇÐÀû °Å´ë Æĵµ·Î º¼ ¼ö ÀÖ´Ù. µÎ ÆĵµÀÇ ºÒ¾ÈÁ¤¼º ÇüÅ »çÀÌÀÇ Â÷ÀÌ´Â Çϳª´Â ½ÇÇè½Ç¿¡¼­ ½±°Ô ¿¬±¸µÉ ¼ö ÀÖ´Â °ÍÀÌ°í ´Ù¸¥ Çϳª´Â ¾Æ´Ï¶ó´Â °ÍÀÌ´Ù.
 
°Å´ë Æĵµ´Â ¸Å¿ì Èñ±ÍÇÏ°Ô ¹ß»ýÇÏ¿© ±×°ÍÀ» ¹Ù´Ù¿¡¼­ Á¶»çÇÏ´Â °ÍÀº °ÅÀÇ ºÒ°¡´ÉÇÑ ÀÏÀ̶ó°í ¿ÁÅ©·£µå ´ëÇÐ ¹°¸®ÇаúÀÇ Miro Erkintalo´Â ¸»ÇÏ¿´´Ù. ÀÌµé ¿¬±¸ÁøÀº ´ÙÇàÈ÷µµ À¯»çÇÑ ±¤ÇÐÀû ½ÇÇèÀ» ÅëÇÏ¿© Çؾ翡¼­ ÀϾ´Â °Å´ë ÆĵµÀÇ °Åµ¿À» µðÀÚÀÎÇÏ¿© ¿¬±¸ÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù°í ¸»ÇÏ¿´´Ù. ±¤¼¶À¯ ½Ã½ºÅÛÀº ƯÈ÷ ÀÌ·± ¸ñÀûÀ¸·Î ¾È¼º¸ÂÃãÀÌ´Ù.
 
ÀÌ ¿¬±¸´Â ÀÌÁ¦ ÇØ¾ç ¼±¹ÚÀÇ ½ºÄÉÀÏ ¸ðµ¨À» ÇÕ¼ºµÈ °Å´ë Æĵµ¿Í ¾î¶»°Ô ÇÊÀûÇÒ ¼ö ÀÖ´ÂÁö¸¦ ¾Ë¾Æº¸´Â µ¥ »ç¿ëµÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù. À̵éÀÇ ¿¬±¸ °á°ú´Â "Instabilities, breathers and rogue waves in optics"¶ó´Â Á¦¸ñÀ¸·Î ³×ÀÌó Æ÷Åä´Ð½º Àú³Î¿¡ ¹ßÇ¥µÇ¾ú´Ù. ±¤ÇÐ ½Ã½ºÅÛÀº Á¶ÀýµÈ Á¶°Ç ÇÏ¿¡¼­ ÃÊ°í¼Ó ÃøÁ¤À» °¡´ÉÇÏ°Ô ÇØÁÖ´Â Æí¸®ÇÑ Å×½ºÆ®-º£µå¸¦ Á¦°øÇÏ¿© ÁØ´Ù.
 
±¤ÇÐ ½ÇÇè ¹°¸®ÇÐÀÚµéÀº ±Ã±ØÀûÀ¸·Î °Å´ë ÆĵµÀÇ ¸ÞÄ¿´ÏÁò¿¡ ´ëÇÑ ÃæºÐÇÑ Á÷°üÀ» Á¦°øÇÏ¿© Çؾ翡¼­ ±×°ÍµéÀÇ ¹ß»ýÀ» ¿¹ÃøÇÒ ¼ö Àֱ⸦ Èñ¸ÁÇÏ°í ÀÖ´Ù. ÀÌ·¸°Ô µÇ±â±îÁö´Â ¿À·£ ¿¬±¸°¡ ÇÊ¿äÇÒ °ÍÀÌÁö¸¸, ±¤ÇÐ ½ÇÇèÀº Çؾ翡¼­ °Å´ë Æĵµ¸¦ ¹ß»ý½ÃÅ°´Â ¸ÞÄ¿´ÏÁò¿¡ ´ëÇÑ »õ·Î¿î Á÷°üÀ» Á¦°øÇÏ°í Àֱ⠶§¹®¿¡ ¾ðÁ¨°¡´Â °¡´ÉÇÒ °ÍÀ¸·Î ¿¹»óµÈ´Ù.
 
÷ºÎ±×¸²: ¿¹ÃøÇÒ ¼ö ¾ø´Â Çؾ翡¼­ÀÇ °Å´ë Æĵµ¸¦ ¿¬±¸ÇÒ ¼ö ÀÖ°Ô ÇØÁÖ´Â ·¹ÀÌÀú.
 
[Ãâó = KISTI ¹Ì¸®¾È ¡º±Û·Î¹úµ¿Çâºê¸®ÇΡ»/ 2014³â 10¿ù 3ÀÏ]

[¿ø¹®º¸±â]

Studies in laser physics help understand rogue waves

University of Auckland physicist Dr Miro Erkintalo is part of an international team investigating how lasers and optical fibres can be used to understand freakishly large waves on the ocean.

Rogue waves are unusually large waves that form at sea without warning but which can have great destructive power. They were once thought to be folklore but in recent decades, with improved technologies, scientists have been able to prove they exist through direct observations. These freak waves are considered threats to ships and have been suggested as the cause of a number of maritime disasters.

Rogue waves are of interest to optical physicists because laser light can behave very similarly to waves at sea. Under certain conditions, the mathematical models that describe light and ocean waves are the same.
 
In these conditions optical 'instabilities' can be seen as 'optical rogue waves' that are comparable to their counterparts at sea. The difference between the two forms of wave instability is that one can be conveniently studied in a laboratory and the other cannot.
 
"Rogue waves are so rare that examining them at sea is next to impossible", says Dr Miro Erkintalo of the University of Auckland's Department of Physics.
 
"Luckily we can study them using analogous optical laboratory experiments that are designed to mimic the behaviour of ocean waves. Optical fibre systems are particularly suitable for this purpose.
 
"This work is now being done to the extent where scale models of maritime vessels are being used to see how they cope with 'synthesised' rogue waves."
 
In a Review article that appears in the prestigious journal Nature Photonics, Dr Erkintalo and international collaborators present an overview of the field, summarising major advances and clarifying the underlying physics.
 
"Optical systems offer a convenient test-bed that permits ultrafast measurements in controlled conditions. The dream is that experiments in optics could eventually provide sufficient insights into the mechanisms of rogue waves so that we would be able to predict them.
 
"This is still a very long way away, but experiments in optics are providing new insights into the mechanisms that lead to giant waves on the ocean"
 
¨Ï±Û·Î¹ú¹°»ê¾÷Á¤º¸¼¾ÅÍ(www.waterindustry.co.kr) ¹«´ÜÀüÀç ¹× Àç¹èÆ÷±ÝÁö
ÀÌÀü±Û [Áß±¹] ¼öÁú ȯ°æ¿¡ ´ëÇÑ ³ª³ë ½Å¼Ó °ËÃâ ±â¼ú ¿¬±¸
´ÙÀ½±Û [¹Ì±¹] ¼ÎÀÏ ºÕÀ¸·Î ¼®À¯½ÃÀå¿¡ Á¦¿ÕÀÌ µÈ ¹Ì±¹
±Û·Î¹ú¹°»ê¾÷Á¤º¸¼¾ÅÍ.   ¼¾ÅÍÀå : ¹èö¹Î
ÁÖ¼Ò : ¼­¿ï½Ã ¼ÛÆı¸ »ïÀüµ¿ 72-3 À¯¸²ºôµù 5Ãþ TEL (02) 3431-0210   FAX (02) 3431-0260   E-mail waterindustry@hanmail.net
COPYRIGHT(C) 2012 ±Û·Î¹ú¹°»ê¾÷Á¤º¸¼¾ÅÍ. ALL RIGHT RESERVED.