{"id":32159,"date":"2013-03-14T21:07:45","date_gmt":"2013-03-14T18:07:45","guid":{"rendered":"http:\/\/www.fyysika.ee\/uudised\/?p=32159"},"modified":"2013-03-14T21:15:24","modified_gmt":"2013-03-14T18:15:24","slug":"uutmoodi-nanolaser-mis-tootab-toatemperatuuril","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=32159","title":{"rendered":"Uutmoodi nanolaser, mis t\u00f6\u00f6tab toasoojalt"},"content":{"rendered":"<p><strong>Nanolaserite toiteks on enamasti kasutatud v\u00e4list valgusallikat. Valgusajamiga nanolaserid on k\u00fcll toasoojalt k\u00e4itatavad, ent elektrilise j\u00f5uallika puudumine teeb nende praktiliste rakendamise t\u00fclikaks. N\u00e4iteks pole lisalaseri paigaldamine elektroonikaseadme alams\u00fcsteemi otstarbekas: v\u00f5tab ruumi ja teeb asja keeruliseks.<\/strong><\/p>\n<div id=\"attachment_32160\" style=\"width: 382px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2013\/03\/F150747244-1363110270943.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-32160\" class=\"size-full wp-image-32160 \" src=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2013\/03\/F150747244-1363110270943.jpg\" alt=\"\" width=\"372\" height=\"209\" srcset=\"https:\/\/www.fyysika.ee\/wp-content\/uploads\/2013\/03\/F150747244-1363110270943.jpg 620w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2013\/03\/F150747244-1363110270943-300x168.jpg 300w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2013\/03\/F150747244-1363110270943-250x140.jpg 250w\" sizes=\"auto, (max-width: 372px) 100vw, 372px\" \/><\/a><p id=\"caption-attachment-32160\" class=\"wp-caption-text\">laseri illustratsioon artiklist.<\/p><\/div>\n<p>Ajakirjandus on \u00e4rgitanud kahtluse, et pikka aega kehtinud Moore\u2019i seadusele v\u00f5ib saabuda l\u00f5pp, et transistoride piirkiirus on nende v\u00e4iksuse ja soojusprobleemide t\u00f5ttu l\u00e4hedal. Toasoojalt t\u00f6\u00f6tavate elektriliste nanolaseritega saaks aga kiiruspiirangut veelgi nihutada ning Moore\u2019i printsiibile uut hoogu puhuda. Hiljaajani kuumenesid aga nimetatud laserid altilt \u00fcle. N\u00fc\u00fcd on Arizona Osariigi \u00dclikooli t\u00f6\u00f6r\u00fchm leidnud nanolaseritele jahedama tehnilise lahenduse.<\/p>\n<p>Pea seitsme aasta uurimist\u00f6\u00f6 kulminatsioon avalikustati teadusajakirjas <em>Optics Express<\/em> pealkirjaga \u201e<em>Record performance of electrical injection sub-wavelenght metallic-cavity semiconductor lasers at room temperature<\/em>\u201c. T\u00f6\u00f6r\u00fchma juhtis \u00fclikooli professor Cun-Zheng Ning.<\/p>\n<p>\u201eOlime esimesed, kes n\u00e4itasid, et metallpeeglitega elektritoitelise nanolaseri t\u00f6\u00f6 on v\u00f5imalik ka stabiilsel m\u00f5\u00f5dukal temperatuuril,\u201c \u00fctles Ning pressiteates. \u201eKahtlus selle v\u00f5imalikkuses p\u00fcsis kaua.\u201c<\/p>\n<p>Ning kasutas laseri aktiivkeskkonnaks risttahuka kujulist indiumfosfiid\/indium-galilium-arseniid\/indium-fosfiid (InP\/InGaAs\/InP) pooljuhtainest ning r\u00e4ninitriid (SiN) isolaatorit. Aktiivosa kaeti h\u00f5bedakihiga, mida kasutati ka varem \u00fcle kuumenenud seadmel, ent teisel juhul parema katmisprotsessiga. Lisaks tehti \u00f5hem r\u00e4ninitriidi kiht.<\/p>\n<p>\u201eNanoasjade valmistamisel on \u00e4\u00e4rmiselt raske k\u00f5ike \u00fche hooga \u00f5igesti teha. V\u00e4iksemgi eksimus v\u00f5imendub kogu seadme katastroofiks. Tootmissamme on palju ja need on keerukad,\u201c seletas Ning.<\/p>\n<p>Et Arizona t\u00f6\u00f6r\u00fchma laser on akult toidetav, saab seda kasutada oluliselt laiemal seadmete hulgal kui valgustoitelisi lasereid. Nanolaseri v\u00f5imalik v\u00f5iduk\u00e4ik panustaks paljudesse tehnoloogiatesse: kiiremad arvutid, suurem ribalaius ning arvutikiipidesse integreeritud sensorseadmed.<\/p>\n<p>Allikas: <a href=\"http:\/\/spectrum.ieee.org\/nanoclast\/semiconductors\/nanotechnology\/electrically-powered-nanolasers-capable-of-being-operated-at-room-temperature\">Spectrum.ieee.org<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nanolaserite toiteks on enamasti kasutatud v\u00e4list valgusallikat. Valgusajamiga nanolaserid on k\u00fcll toasoojalt k\u00e4itatavad, ent elektrilise j\u00f5uallika puudumine teeb nende praktiliste rakendamise t\u00fclikaks. N\u00e4iteks pole lisalaseri paigaldamine elektroonikaseadme alams\u00fcsteemi otstarbekas: v\u00f5tab ruumi ja teeb asja keeruliseks. Ajakirjandus on \u00e4rgitanud kahtluse, et pikka aega kehtinud Moore\u2019i seadusele v\u00f5ib saabuda l\u00f5pp, et transistoride piirkiirus on nende v\u00e4iksuse ja [&hellip;]<\/p>\n","protected":false},"author":449,"featured_media":32160,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[16],"tags":[110],"class_list":{"0":"post-32159","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-teadusuudis","8":"tag-materjal","9":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/32159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/449"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=32159"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/32159\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/media\/32160"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=32159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=32159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=32159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}