Tsis ntev los no tau kawm los ntawm University of Science thiab Technology ntawm Tuam Tshoj, lub tsev kawm ntawv ntawm Guo Guangcan kev kawm pab pawg xibfwb Dong Chunhua thiab tus neeg koom tes Zou Changling tau thov kom muaj kev tswj hwm thoob ntiaj teb micro-cavity dispersion, kom ua tiav lub sijhawm tiag tiag ntawm kev ywj pheej tswj ntawm qhov chaw kho qhov muag zaus. zaus thiab rov ua dua, thiab siv rau qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov tseeb, qhov ntsuas qhov tseeb wavelength tau nce mus rau kilohertz (kHz).Cov kev tshawb pom tau luam tawm hauv Nature Communications.
Soliton microcombs raws li optical microcavities tau nyiam kev tshawb fawb zoo hauv kev ua haujlwm ntawm precision spectroscopy thiab optical moos.Txawm li cas los xij, vim muaj kev cuam tshuam ntawm ib puag ncig thiab lub suab nrov laser thiab ntxiv cov teebmeem tsis zoo hauv microcavity, kev ruaj ntseg ntawm soliton microcomb yog qhov txwv tsis pub, uas dhau los ua qhov teeb meem loj hauv kev siv tswv yim ntawm lub teeb qis qis.Hauv kev ua haujlwm yav dhau los, cov kws tshawb fawb tau ruaj khov thiab tswj cov kev kho qhov muag zaus zuag los ntawm kev tswj cov refractive index ntawm cov khoom los yog cov geometry ntawm microcavity kom ua tau raws li lub sij hawm tawm tswv yim, uas ua rau muaj kev hloov pauv nyob ze ntawm txhua hom resonance hauv microcavity tib yam. lub sij hawm, tsis muaj peev xwm ntawm nws tus kheej tswj qhov zaus thiab rov ua dua ntawm cov zuag.Qhov no txwv tsis pub siv lub teeb qis qis hauv qhov ua tau zoo ntawm qhov tseeb spectroscopy, microwave photons, optical ranges, thiab lwm yam.
Txhawm rau daws qhov teeb meem no, pab pawg tshawb fawb tau thov kom muaj lub cev lub cev tshiab kom paub txog kev ywj pheej ntawm kev tswj hwm lub sijhawm ntawm qhov chaw ntau zaus thiab rov ua dua qhov zaus ntawm qhov kho qhov muag zaus.Los ntawm kev qhia ob txoj hauv kev sib txawv micro-cavity dispersion tswj, pab pawg tuaj yeem tswj nws tus kheej ntawm qhov sib txawv ntawm qhov kev txiav txim ntawm micro-cavity, thiaj li ua tiav tag nrho cov kev tswj ntawm cov hniav sib txawv ntawm qhov muag zaus zuag.Cov kev cai tswj kev sib cais no yog universal rau ntau qhov sib koom ua ke photonic platforms xws li silicon nitride thiab lithium niobate, uas tau kawm dav.
Pab neeg tshawb fawb tau siv lub tshuab laser thiab lub koom haum pab laser los tswj nws tus kheej ntawm cov qauv sib txawv ntawm cov kev txiav txim sib txawv ntawm cov microcavity kom paub txog qhov kev hloov pauv ntawm cov twj tso kua mis ntau zaus thiab kev ywj pheej ntawm kev tswj hwm ntawm cov zaus zuag repetition zaus.Raws li qhov kho qhov muag zuag, pab neeg tshawb fawb tau qhia ceev ceev, programmable tswj ntawm arbitrary comb zaus thiab siv nws mus rau qhov tseeb ntsuas ntawm yoj ntev, qhia ib tug wavemeter nrog ib tug ntsuas qhov tseeb ntawm qhov kev txiav txim ntawm kilohertz thiab lub peev xwm los ntsuas ntau wavelengths ib txhij.Piv nrog rau cov txiaj ntsig kev tshawb fawb yav dhau los, qhov ntsuas qhov tseeb ua tiav los ntawm pab pawg tshawb fawb tau mus txog peb qhov kev txiav txim siab ntawm qhov loj dua.
Lub reconfigurable soliton microcombs pom nyob rau hauv qhov kev tshawb fawb tau nteg lub hauv paus rau lub realization ntawm tus nqi qis, nti integrated optical zaus qauv, uas yuav siv tau nyob rau hauv precision ntsuas, optical moos, spectroscopy thiab kev sib txuas lus.
Post lub sij hawm: Sep-26-2023