Kutshanje kufundwe kwiYunivesithi yeSayensi kunye neTekhnoloji yaseChina, iqela lezemfundo leyunivesithi yaseGuo Guangcan uNjingalwazi Dong Chunhua kunye nomdibanisi uZou Changling ucebise indlela yokulawula ukusasazwa komngxunya wendalo yonke, ukuphumeza ulawulo lokwenyani oluzimeleyo lwe-optical frequency comb center frequency and uphindo frequency, kwaye lusetyenziswa kumlinganiselo ochanekileyo wokulinganisa i-optical wavelength, i-wavelength optical waveleng (kHz). Iziphumo zapapashwa kuNxibelelwano lweNdalo.
Ii-microcombs ze-Soliton ezisekwe kwii-microcavities zokukhanya ziye zatsala umdla omkhulu wophando kwimimandla ye-spectroscopy kunye neewotshi zamehlo. Nangona kunjalo, ngenxa yempembelelo yokusingqongileyo kunye nengxolo ye-laser kunye nemiphumo eyongezelelweyo engabonakaliyo kwi-microcavity, ukuzinza kwe-soliton microcomb kulinganiselwe kakhulu, okuba ngumqobo omkhulu ekusebenziseni okusebenzayo kwinqanaba eliphantsi lokukhanya. Kumsebenzi wangaphambili, izazinzulu zizinzile kwaye zilawula i-optical frequency comb ngokulawula isalathisi sokuphindaphinda kwezinto okanye i-geometry ye-microcavity ukuphumeza impendulo yexesha langempela, nto leyo ebangele utshintsho olusondeleyo kuzo zonke iindlela ze-resonance kwi-microcavity ngexesha elifanayo, bengenakho ukukwazi ukulawula ngokuzimeleyo ukuphindaphinda kunye nokuphindaphinda kwe-comb. Oku kunqanda kakhulu ukusetyenziswa kwekama eliphantsi lokukhanya kwimiboniso ebonakalayo ye-spectroscopy echanekileyo, iifotoni ze-microwave, ukuvela kwe-optical, njl.
Ukusombulula le ngxaki, iqela lophando licebise indlela entsha yomzimba yokuqonda ukulawulwa kwexesha lokwenyani elizimeleyo le-frequency center kunye nokuphindaphinda okuphindaphindiweyo kwe-optical frequency comb. Ngokuzisa iindlela ezimbini ezahlukeneyo zokulawula ukusasazeka kwe-micro-cavity, iqela linokulawula ngokuzimeleyo ukusasazwa kwemiyalelo eyahlukeneyo ye-micro-cavity, ukuze kufezekiswe ulawulo olupheleleyo lwee-frequencies ezahlukeneyo zamazinyo e-optical frequency comb. Le ndlela yokulawula ukusasazwa kwayo yonke indawo ukuya kumaqonga ahlukeneyo efotonic adibeneyo afana ne-silicon nitride kunye ne-lithium niobate, eziye zafundwa ngokubanzi.
Iqela lophando lisebenzise i-laser yokupompa kunye ne-laser encedisayo ukulawula ngokuzimeleyo iindlela zendawo yemiyalelo eyahlukeneyo ye-microcavity ukuqonda ukuzinza okuguquguqukayo kwe-frequency mode yokupompa kunye nokulawulwa okuzimeleyo kwe-frequency comb repetition frequency. Ngokusekelwe kwi-optical comb, iqela lophando libonise ngokukhawuleza, ukulawulwa okucwangcisiweyo kwee-frequencies ze-comb engafanelekanga kwaye isetyenziswe kumlinganiselo ochanekileyo wobude be-wave wave, ebonisa i-wavemeter kunye nokuchaneka komlinganiselo womyalelo we-kilohertz kunye nokukwazi ukulinganisa ubude bamaza amaninzi ngaxeshanye. Xa kuthelekiswa neziphumo zophando lwangaphambili, ukuchaneka kokulinganisa okuphunyezwe liqela lophando kuye kwafikelela kwimiyalelo emithathu yokuphucula ubungakanani.
I-microcombs ye-soliton ehlengahlengiswayo ebonakaliswe kwesi siphumo sophando ibeka isiseko sokufezekiswa kwexabiso eliphantsi, imigangatho ye-chip edibeneyo ye-optical frequency, eya kusetyenziswa kumlinganiselo ochanekileyo, i-clock optical, i-spectroscopy kunye nonxibelelwano.
Ixesha lokuposa: Sep-26-2023