{"id":76296,"date":"2024-09-05T21:12:06","date_gmt":"2024-09-05T21:12:06","guid":{"rendered":"https:\/\/ekamu.net\/?p=76296"},"modified":"2024-09-05T21:12:06","modified_gmt":"2024-09-05T21:12:06","slug":"iletisimde-devrim-dunyanin-ilk-petahertz-frekans-karistiricisi-gelistirildi","status":"publish","type":"post","link":"https:\/\/ekamu.net\/index.php\/2024\/09\/05\/iletisimde-devrim-dunyanin-ilk-petahertz-frekans-karistiricisi-gelistirildi\/","title":{"rendered":"\u0130leti\u015fimde devrim: D\u00fcnyan\u0131n ilk petahertz frekans kar\u0131\u015ft\u0131r\u0131c\u0131s\u0131 geli\u015ftirildi"},"content":{"rendered":"

<\/span> \u0130leti\u015fim teknolojisinde devrim niteli\u011finde bir geli\u015fme ya\u015fan\u0131yor. Massachusetts Institute of Technology<\/strong> (MIT) ara\u015ft\u0131rmac\u0131lar\u0131n\u0131n \u00f6nc\u00fcl\u00fc\u011f\u00fcnde geli\u015ftirilen petahertz<\/strong> (PHz) frekansl\u0131 mikserler (veya kar\u0131\u015ft\u0131r\u0131c\u0131) bilgi iletimini ve i\u015flemeyi deyim yerindeyse \u0131\u015f\u0131k h\u0131z\u0131na yak\u0131n bir seviyeye ta\u015f\u0131yarak, bug\u00fcne kadar m\u00fcmk\u00fcn olmayan h\u0131zlarda ileti\u015fim<\/strong> kurulmas\u0131na olanak sa\u011flayacak. <\/figure>\n

\u0130leti\u015fimde s\u0131n\u0131rlar zorlan\u0131yor<\/b><\/p>\n

G\u00fcn\u00fcm\u00fczde radyo, Wi-Fi ve di\u011fer ileti\u015fim teknolojileri gigahertz (GHz) ve terahertz (THz) frekans aral\u0131klar\u0131nda \u00e7al\u0131\u015f\u0131yor. Bu frekanslar, milyarlarca ila trilyonlarca kez titre\u015fen elektronik sinyallerin uzun mesafelere ta\u015f\u0131nmas\u0131n\u0131 sa\u011fl\u0131yor. Ancak petahertz frekansl\u0131 kar\u0131\u015ft\u0131r\u0131c\u0131lar<\/strong> sinyalleri bir katrilyon (10\u00b9\u2075) kez titre\u015fim yapabilen optik frekanslara ta\u015f\u0131yarak, bu sinyallerin daha h\u0131zl\u0131 ve daha fazla veri iletebilecek<\/strong> hale gelmesini sa\u011fl\u0131yor. Bu, yaln\u0131zca h\u0131z\u0131n art\u0131r\u0131lmas\u0131n\u0131 sa\u011flam\u0131yor, ayn\u0131 zamanda tamamen yeni ileti\u015fim kapasitelerinin \u00f6n\u00fcn\u00fc a\u00e7\u0131yor<\/strong>.<\/p>\n

I\u015f\u0131k dalgalar\u0131 ile elektronik sistemlerin entegrasyonu<\/b><\/p>\n

I\u015f\u0131k dalgas\u0131 elektroni\u011fi<\/strong> (veya petahertz elektroni\u011fi) olarak bilinen bu yeni alan, \u0131\u015f\u0131k dalgalar\u0131n\u0131n elektriksel alanlar\u0131n\u0131n inan\u0131lmaz derecede h\u0131zl\u0131 titre\u015fimlerinden faydalanarak, elektronik sistemlerin ve optik bile\u015fenlerin tek bir \u00e7ipte entegre edilmesini ama\u00e7l\u0131yor. I\u015f\u0131k dalgalar\u0131n\u0131n titre\u015fim h\u0131zlar\u0131 femtosaniye (10\u207b\u00b9\u2075 saniye) \u00f6l\u00e7e\u011finde oldu\u011fundan, bu teknolojiler mevcut elektronik cihazlar\u0131n h\u0131zlar\u0131n\u0131 \u00e7ok daha ileriye ta\u015f\u0131yor. B\u00f6ylece petahertz kar\u0131\u015ft\u0131r\u0131c\u0131lar, daha b\u00fcy\u00fck veri setlerinin analizini ve i\u015flenmesini ger\u00e7ek zamanl\u0131 olarak m\u00fcmk\u00fcn k\u0131larken, hava \u00fczerinden veri aktar\u0131m\u0131n\u0131 da h\u0131zland\u0131r\u0131yor.<\/p>\n

<\/span> MIT’de yap\u0131lan ara\u015ft\u0131rma, petahertz (0,350 PHz) \u00f6l\u00e7ekli frekanslarda \u00e7al\u0131\u015fan bir \u0131\u015f\u0131k dalgas\u0131-elektronik frekans kar\u0131\u015ft\u0131r\u0131c\u0131s\u0131n\u0131n<\/strong> geli\u015ftirilmesiyle sonu\u00e7land\u0131. Bu \u00e7al\u0131\u015fma, hem optik hem de elektronik sinyalleri ayn\u0131 anda i\u015fleyebilen ve analiz edebilen <\/strong>bir \u00e7ip teknolojisinin ilk ad\u0131m\u0131 olarak g\u00f6r\u00fcl\u00fcyor. Geli\u015ftirilen kar\u0131\u015ft\u0131r\u0131c\u0131, nano antenler<\/strong> (nanometre \u00f6l\u00e7ek, metrenin milyarda biri)<\/em> kullanarak farkl\u0131 frekanslarda \u0131\u015f\u0131k sinyallerini kar\u0131\u015ft\u0131rabiliyor ve bu sinyalleri analiz edebiliyor. Bu da femtosaniye \u00f6l\u00e7e\u011finde sinyallerin yakalanmas\u0131n\u0131 gerektiren spektroskopi<\/strong> ve g\u00f6r\u00fcnt\u00fcleme<\/strong> gibi alanlarda b\u00fcy\u00fck bir devrim niteli\u011fi ta\u015f\u0131yor. (1 femtosaniye saniyenin milyarda birinin milyonda biridir)<\/em> <\/figure>\n

MIT ara\u015ft\u0131rmac\u0131lar\u0131n\u0131n geli\u015ftirdi\u011fi nano anten tabanl\u0131 kar\u0131\u015ft\u0131r\u0131c\u0131, ticari olarak temin edilebilen lazerler ile \u00e7al\u0131\u015fabiliyor ve optik sinyalleri do\u011frudan nanosaniye \u00f6l\u00e7e\u011finde i\u015flemeyi m\u00fcmk\u00fcn k\u0131l\u0131yor. Daha \u00f6nceki \u00e7al\u0131\u015fmalarda \u00e7ok \u00f6zel lazerlere ihtiya\u00e7 duyuluyordu.<\/p>\n

Bu geli\u015fme, yaln\u0131zca optik sinyallerin i\u015flenmesinde bir s\u0131\u00e7rama de\u011fil, ayn\u0131 zamanda elektronik ve optik alanlar aras\u0131ndaki s\u0131n\u0131rlar\u0131n bulan\u0131kla\u015fmas\u0131na da neden oluyor. Bu \u00e7al\u0131\u015fma farkl\u0131 frekanslardaki \u0131\u015f\u0131k darbelerini karakterize etmeye odaklan\u0131rken, ara\u015ft\u0131rmac\u0131lar benzer cihazlar\u0131n \u0131\u015f\u0131k dalgalar\u0131n\u0131 kullanarak devreler olu\u015fturabilece\u011fini \u00f6ng\u00f6r\u00fcyor. Ortaya konan bu ara\u015ft\u0131rman\u0131n \u00f6zellikle spektroskopi<\/strong>, g\u00f6r\u00fcnt\u00fcleme<\/strong> ve ileti\u015fim<\/strong> gibi alanlarda yeni kap\u0131lar a\u00e7mas\u0131 bekleniyor. Ek olarak ara\u015ft\u0131rman\u0131n ABD Enerji Bakanl\u0131\u011f\u0131<\/strong> ve Hava Kuvvetleri Bilimsel Ara\u015ft\u0131rma Ofisi<\/strong> taraf\u0131ndan desteklendi\u011fini de belirtelim.<\/p>\n\n

<\/span><\/p>\n

Kaynak :\u00a0https:\/\/www.donanimhaber.com\/dunyanin-ilk-petahertz-frekans-karistiricisi-gelistirildi–181582<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u0130leti\u015fim teknolojisinde devrim niteli\u011finde bir geli\u015fme ya\u015fan\u0131yor. Massachusetts Institute of Technology (MIT) ara\u015ft\u0131rmac\u0131lar\u0131n\u0131n \u00f6nc\u00fcl\u00fc\u011f\u00fcnde geli\u015ftirilen petahertz (PHz) frekansl\u0131 mikserler (veya kar\u0131\u015ft\u0131r\u0131c\u0131) bilgi iletimini ve i\u015flemeyi deyim …<\/p>\n","protected":false},"author":1,"featured_media":76297,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[314,786,2667,533,2452],"class_list":["post-76296","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-arastirma","tag-elektronik","tag-frekans","tag-isik","tag-optik"],"_links":{"self":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts\/76296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/comments?post=76296"}],"version-history":[{"count":1,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts\/76296\/revisions"}],"predecessor-version":[{"id":76300,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/posts\/76296\/revisions\/76300"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/media\/76297"}],"wp:attachment":[{"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/media?parent=76296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/categories?post=76296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ekamu.net\/index.php\/wp-json\/wp\/v2\/tags?post=76296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}