Haufinyane tjena o ile a ithuta ho tswa ho Univesithi ea Saense le Theknoloji ea Chaena, univesithi ea Guo Guangcan akatemi sehlopha Professor Dong Chunhua le mohokahanyi Zou Changling sisintsweng bokahohleng micro-cavity hasana taolo mochine, ho finyella nako ea sebele puso e ikemetseng ea optical maqhubu a kama setsi. makhetlo a mangata le a ho pheta-pheta, 'me a sebelisoa ho lekanya ho nepahetseng ha leqhubu la optical wavelength, ho nepahala ha tekanyo ea maqhubu ho eketsehile ho kilohertz (kHz). Liphuputso li ile tsa hatisoa ho Nature Communications.
Li-microcombs tsa Soliton tse ipapisitseng le li-microcavities tsa optical li hohetse thahasello e kholo ea lipatlisiso mafapheng a li-spectroscopy tse nepahetseng le lioache tsa mahlo. Leha ho le joalo, ka lebaka la tšusumetso ea lerata la tikoloho le laser le liphello tse ling tse se nang moeli ho microcavity, botsitso ba soliton microcomb bo fokotsehile haholo, e leng se fetohang tšitiso e kholo ts'ebetsong e sebetsang ea sekhahla se tlaase sa leseli. Mosebetsing o fetileng, bo-rasaense ba ile ba tsitsisa le ho laola motsoako oa maqhubu a optical ka ho laola index ea refractive ea thepa kapa geometry ea microcavity ho finyella maikutlo a nako ea sebele, e leng se entseng hore ho be le liphetoho tse haufi-ufi tsa mefuta eohle ea resonance ka microcavity ka nako e le 'ngoe. nako, ho haelloa ke matla a ho laola ka boikemelo le ho pheta-pheta ha kama. Sena se fokotsa haholo ts'ebeliso ea kama e bobebe bo tlase lits'ebetsong tse sebetsang tsa spectroscopy e nepahetseng, li-photon tsa microwave, mebala ea mahlo, joalo-joalo.
E le ho rarolla bothata bona, sehlopha sa lipatlisiso se ile sa etsa tlhahiso ea mokhoa o mocha oa 'mele oa ho hlokomela taolo e ikemetseng ea nako ea sebele ea maqhubu a setsi le ho pheta-pheta ha sekhahla sa optical frequency comb. Ka ho hlahisa mekhoa e 'meli e fapaneng ea ho laola ho hasana ha micro-cavity, sehlopha se ka ikemela ho laola ho hasana ha litaelo tse fapaneng tsa micro-cavity, e le ho finyella taolo e feletseng ea maqhubu a fapaneng a meno a optical frequency comb. Mokhoa ona oa taolo ea ho hasana o sebetsa hohle ho liforomo tse fapaneng tse kopaneng tsa photonic tse kang silicon nitride le lithium niobate, tse ithutoang haholo.
Sehlopha sa lipatlisiso se sebelisitse laser ea pumping le laser e thusang ho laola ka mokhoa o ikemetseng mekhoa ea sebaka sa litaelo tse fapaneng tsa microcavity ho lemoha botsitso bo feto-fetohang ba maqhubu a mokhoa oa ho pompa le taolo e ikemetseng ea makhetlo a mangata a ho pheta-pheta. Ho ipapisitsoe le khekhe ea optical, sehlopha sa lipatlisiso se bonts'itse taolo e potlakileng, e hlophisehileng ea maqhubu a maqhubu a sa reroang mme a e sebelisa ho lekanya ho nepahala ha bolelele ba maqhubu, ho bonts'a wavemeter e nang le tekanyo e nepahetseng ea tatellano ea kilohertz le bokhoni ba ho lekanya maqhubu a mangata ka nako e le 'ngoe. Ha ho bapisoa le liphetho tsa lipatlisiso tse fetileng, ho nepahala ha tekanyo e fihletsoeng ke sehlopha sa lipatlisiso ho fihletse litaelo tse tharo tsa ntlafatso ea boholo.
Li-microcombs tsa soliton tse ka lokisoang bocha tse bontšitsoeng sephethong sena sa lipatlisiso li rala motheo oa ho phethahala ha litekanyetso tse tlase tsa theko e tlase, tse tla sebelisoa ka tekanyo e nepahetseng, oache ea optical, spectroscopy le puisano.
Nako ea poso: Sep-26-2023