Zipangizo zazing'ono komanso ma laser ogwira ntchito bwino

Zipangizo zazing'ono komanso zogwira mtima kwambirima laser
Ofufuza a Rensselaer Polytechnic Institute apanga njira yatsopano yopezera ndalama.chipangizo cha laserNdi kukula kwa tsitsi la munthu kokha, komwe kungathandize akatswiri a sayansi ya zamoyo kuphunzira za zinthu zofunika kwambiri komanso kuwala. Ntchito yawo, yofalitsidwa m'magazini otchuka asayansi, ingathandizenso kupanga ma laser ogwira ntchito bwino kwambiri kuti agwiritsidwe ntchito m'magawo osiyanasiyana kuyambira zamankhwala mpaka opanga zinthu.

ThelaserChipangizochi chimapangidwa ndi chinthu chapadera chotchedwa photonic topological insulator. Photonic topological insulators amatha kutsogolera ma photon (mafunde ndi tinthu tomwe timapanga kuwala) kudzera m'malo apadera mkati mwa chinthucho, pomwe amaletsa tinthuti kuti tisabalalike mu chinthucho chokha. Chifukwa cha izi, ma topological insulators amalola ma photon ambiri kugwira ntchito limodzi. Zipangizozi zingagwiritsidwenso ntchito ngati "quantum simulators" ya topological, zomwe zimathandiza ofufuza kuphunzira zochitika za quantum - malamulo achilengedwe omwe amalamulira zinthu pamlingo wochepa kwambiri - mu ma mini-lab.
"Atopological ya photonicChotetezera chomwe tidapanga ndi chapadera. Chimagwira ntchito kutentha kwa chipinda. Ichi ndi chitukuko chachikulu. Kale, maphunziro oterewa ankangochitika pogwiritsa ntchito zida zazikulu komanso zodula kuti aziziritse zinthu mu vacuum. Ma LABS ambiri ofufuza alibe zida zamtunduwu, kotero chipangizo chathu chimathandiza anthu ambiri kuchita kafukufuku wofunikira wa fizikisi mu labu, "anatero pulofesa wothandizira wa Rensselaer Polytechnic Institute (RPI) mu Dipatimenti ya Sayansi ndi Uinjiniya komanso wolemba wamkulu wa kafukufukuyu. Kafukufukuyu anali ndi chitsanzo chochepa, koma zotsatira zake zikusonyeza kuti mankhwala atsopanowa awonetsa kugwira ntchito kwakukulu pochiza matenda osowa a majini awa. Tikuyembekezera kutsimikiziranso zotsatira izi m'mayesero azachipatala amtsogolo komanso zomwe zingayambitse njira zatsopano zothandizira odwala omwe ali ndi matendawa." Ngakhale kukula kwa chitsanzo cha kafukufukuyu kunali kochepa, zomwe zapezeka zikusonyeza kuti mankhwala atsopanowa awonetsa kugwira ntchito kwakukulu pochiza matenda osowa a majini awa. Tikuyembekezera kutsimikiziranso zotsatira izi m'mayesero azachipatala amtsogolo komanso zomwe zingayambitse njira zatsopano zothandizira odwala omwe ali ndi matendawa."
“Iyi ndi sitepe yofunika kwambiri pakukula kwa ma laser chifukwa mphamvu zomwe timafunikira kuti chipangizo chathu chigwire ntchito m'chipinda (kuchuluka kwa mphamvu zomwe zimafunika kuti chigwire ntchito) ndizochepa kasanu ndi kawiri kuposa zida zam'mbuyomu zowunikira kutentha,” ofufuzawo adawonjezera. Ofufuza a Rensselaer Polytechnic Institute adagwiritsa ntchito njira yomweyi yomwe imagwiritsidwa ntchito ndi makampani opanga ma semiconductor popanga ma microchip kuti apange chipangizo chawo chatsopano, chomwe chimaphatikizapo kuyika mitundu yosiyanasiyana ya zinthu zosanjikiza ndi zosanjikiza, kuyambira pa atomu mpaka pamlingo wa mamolekyulu, kuti apange nyumba zabwino zokhala ndi mawonekedwe enaake.
Kupangachipangizo cha laser, ofufuzawo adapanga mbale zoonda kwambiri za selenide halide (kristalo wopangidwa ndi cesium, lead ndi chlorine) ndipo adayika ma polima okhala ndi mapatani. Adayika mbale za kristalo ndi ma polima awa pakati pa zinthu zosiyanasiyana za oxide, zomwe zidapangitsa kuti chinthucho chikhale chokhuthala pafupifupi ma microns awiri ndi ma microns 100 kutalika ndi m'lifupi (m'lifupi mwa tsitsi la munthu ndi ma microns 100).
Pamene ofufuzawo anaunikira laser pa chipangizo cha laser, mawonekedwe a triangle owala anaonekera pa mawonekedwe a kapangidwe ka zinthu. Kapangidwe kake kamatsimikiziridwa ndi kapangidwe ka chipangizocho ndipo ndi zotsatira za mawonekedwe a topological a laser. "Kutha kuphunzira zochitika za quantum kutentha kwa chipinda ndi chiyembekezo chosangalatsa. Ntchito yatsopano ya Pulofesa Bao ikuwonetsa kuti uinjiniya wa zinthu ungatithandize kuyankha mafunso ena akuluakulu mu sayansi," adatero dean wa uinjiniya wa Rensselaer Polytechnic Institute.