Masu bincike a Jami'ar Jihar Penn da ke Amurka sun ce nan ba da jimawa ba, semiconductor core fiber da kanta na iya yin canjin "lantarki-na gani-lantarki" mai tsada ba tare da dogaro da na'urori masu canza wutar lantarki ba, da na gani mai tsada. lantarki masu canzawa a ƙarshen karɓa.

Wannan sabuwar ƙirƙira ita ce haɗa madaidaicin siliki guda ɗaya a cikin gilashin capillary tare da diamita na ciki na 1.7 microns, da kuma ƙarfafawa da hatimi a ƙarshen biyu don samar da silicon crystal silicon guda ɗaya, ta haka za a haɗa germanium crystal silicon kristal mai rahusa da silicon crystal silicon guda ɗaya a ƙarshen biyun. .Farfesa Venkatraman Gopalan da John Badding ne suka gudanar da wannan bincike tare a Sashen Kimiyya da Injiniya a Jami'ar Jihar Penn, da dalibin digiri na uku Xiaoyu Ji.

Haɗa ainihin siliki amorphous a cikin capillary gilashi tare da diamita na ciki na 1.7 microns

Fiber na gani mai sauƙi da ake amfani da shi a yau zai iya fitar da photons kawai tare da bututun gilashin da aka rufe da murfin polymer mai laushi.Mafi kyawun sigina yana riƙe a cikin fiber na gani ta hanyar yin tunani daga gilashin zuwa polymer, don haka kusan babu asarar sigina a lokacin watsawa mai nisa.Abin takaici, duk bayanan da aka watsa daga kwamfutar suna buƙatar amfani da na'urori masu juyawa masu tsada na lantarki a ƙarshen watsawa.

Hakazalika, mai karɓar ita kwamfuta ce da ke buƙatar masu canza wutar lantarki masu tsada a ƙarshen karɓa.Don ƙarfafa siginar, nisa mai tsayi tsakanin garuruwa daban-daban yana buƙatar "maimaitawa" don yin mafi mahimmancin jujjuyawar gani-lantarki, sa'an nan kuma ƙara ƙarfin lantarki, sannan ya wuce ta hanyar babban mai canza wutar lantarki don barin siginar gani. wuce zuwa na gaba A ƙarshe Relay ya isa inda yake.

Masu bincike a Jami'ar Jihar Penn suna fatan haɓaka filaye na gani da ke cike da na'urori masu kaifin basira, suna ba su damar yin jujjuyawar wutar lantarki-na gani-lantarki da kansu.A halin yanzu, kungiyar masu binciken ba ta kai ga cimma burinta ba, amma ta yi nasarar hada dukkan kayan da ake bukata a cikin simintin duban dan tayi, kuma ta tabbatar da cewa tana iya watsa photons da electrons a lokaci guda.Bayan haka, suna buƙatar ƙirar silicon crystal guda ɗaya akan iyakar biyun fiber na gani don aiwatar da mahimman juzu'i na gani-lantarki da na gani-lantarki a ainihin lokacin.

Badding ya nuna yuwuwar yin amfani da filaye masu cike da silicon a cikin 2006, sannan Ji ya yi amfani da lasers don haɗa germanium crystal silicon germanium mai tsafta mai tsafta tare da capillaries na gilashi a cikin binciken karatun digirinsa.Sakamakon shine hatimin monosilicon mai kaifin baki wanda ya fi tsayi sau 2,000, wanda ke juyar da ingantaccen samfur na Badding zuwa kayan kasuwanci mai inganci.

Xiaoyu Ji, dan takarar PhD a Sashen Kimiyyar Kayan Aiki a Jami'ar Jihar Penn, yana gudanar da gwaje-gwajen crystallization a Laboratory National Argonne.

Wannan matsananci-kananan siliki siliki guda ɗaya kuma yana ba Ji damar amfani da na'urar daukar hoto ta Laser don narkewa da kuma daidaita tsarin crystal a tsakiyar tsakiyar gilashin a zazzabi na 750-900 Fahrenheit, don haka guje wa gurɓatar siliki na gilashin.

Sabili da haka, an ɗauki fiye da shekaru 10 daga ƙoƙarin farko na Badding na haɗa semiconductor masu kaifin baki da filaye masu sauƙi masu sauƙi tare da fiber na gani-lantarki iri ɗaya.

Na gaba, masu binciken za su fara haɓakawa (domin su sa fiber mai wayo ya isa saurin watsawa da ingancin kwatankwacin fiber mai sauƙi), da ƙirar silicon germanium don aikace-aikacen aikace-aikacen, gami da endoscopes, hoto da Laser fiber.