Imikorere ya Quantum ya Photodetector irenga imipaka

Nk’uko bitangazwa n’umuryango w’umuryango w’abahanga mu bya fiziki uherutse gutangaza ko abashakashatsi bo muri Finilande bakoze fotodetector yumukara wa silicon yumukara hamwe na kwant yo hanze ikora neza ku kigero cya 130%, bikaba bibaye ubwa mbere imikorere y’ibikoresho bifotora birenga imipaka ya 100%, bikaba biteganijwe ko izagera kuri byinshi kunoza imikorere yibikoresho byerekana amashanyarazi, kandi ibyo bikoresho bikoreshwa cyane mumodoka, terefone zigendanwa, amasaha yubwenge nibikoresho byubuvuzi.

Photodetector ni sensor ishobora gupima urumuri cyangwa izindi mbaraga za electronique, guhindura fotone mumashanyarazi, kandi fotone yakiriwe ikora electron-umwobo. Photodetector ikubiyemo Photodiode na Phototransistor, nibindi. Quantum ikoreshwa mugusobanura ijanisha rya fotone yakiriwe nigikoresho nka fotodetekeri mu mwobo wa elegitoroniki, ni ukuvuga ko kwant ikora neza ihwanye numubare wa electron zifotora zigabanijwe na umubare wamafoto yibyabaye.

Iyo fotone yibyabaye itanga electron kumurongo wizunguruka, kwumwanya wo hanze wigikoresho ni 100% (mbere yatekerezaga ko ari imipaka ntarengwa). Mu bushakashatsi buheruka gukorwa, Photodetector yumukara wa silicon yari ifite ubushobozi bwo kugera kuri 130 ku ijana, bivuze ko fotone imwe yibyabaye itanga electron zigera kuri 1.3.

Nk’uko abashakashatsi bo muri kaminuza ya Aalto babitangaza ngo intwaro y'ibanga iri inyuma y’iri terambere rikomeye ni uburyo bwo kugwiza ibicuruzwa bitwara ibintu biboneka muri nanostructure idasanzwe ya fotodetector yumukara wa silicon, iterwa na fotone ifite ingufu nyinshi. Mbere, abahanga ntabwo bari bashoboye kureba ibyabaye mubikoresho bifatika kuko kuba hari igihombo cyamashanyarazi na optique byagabanije umubare wa electron zegeranijwe. Umuyobozi w’inyigisho Profeseri Hera Severn yabisobanuye agira ati: “Ibikoresho byacu bya nanostructures ntibishobora kongera kwiyubaka no gutakaza igihombo, bityo dushobora gukusanya abatwara ibintu byinshi.”

Iyi mikorere yagenzuwe n'Ikigo cy'ikoranabuhanga ry'umubiri cya Sosiyete y'Abadage ishinzwe Metrology (PTB), serivisi yo gupima neza kandi yizewe mu Burayi.

Abashakashatsi bavuga ko iyi nyandiko ikora neza bivuze ko abahanga bashobora kuzamura cyane imikorere yibikoresho bifata amashanyarazi.

Umuyobozi mukuru wa ElfysInc, sosiyete ifitwe na kaminuza ya Aalto, Dr. Mikko Juntuna yagize ati: "Abashakashatsi bacu batanze inyungu nyinshi, cyane cyane mu bijyanye n'ikoranabuhanga ndetse no gukurikirana ibikorwa by'inganda." Biravugwa ko batangiye gukora disiketi kugirango bakoreshe ubucuruzi.