Nguva ichangopfuura yakadzidza kubva kuYunivhesiti yeScience neTechnology yeChina, yunivhesiti yeGuo Guangcan academician team Purofesa Dong Chunhua uye mushandirwi Zou Changling vakaronga nzira yepasi rose micro-cavity dispersion control mechanism, kuti iwane nguva chaiyo yakazvimiririra yekutonga kwe optical frequency comb centre. frequency uye kudzokorora frequency, uye yakashandiswa kune chaiyo kuyerwa kweiyo optical wavelength, iyo wavelength kuyerwa kuyerwa kwakawedzera kusvika kilohertz (kHz).Zvakawanikwa zvakaburitswa muNature Communications.
Soliton microcombs yakavakirwa pane optical microcavities yakakwezva kukuru kutsvagisa kufarira muminda yechaiyo spectroscopy uye optical wachi.Nekudaro, nekuda kwepesvedzero yezvakatipoteredza uye laser ruzha uye zvimwe zvisiri mutsara mhedzisiro muiyo microcavity, kugadzikana kwesoliton microcomb kwakaganhurirwa, inova chipingamupinyi chikuru mukushandiswa kunoshanda kweiyo low light level comb.Mubasa rakapfuura, masayendisiti akagadzikana uye akadzora iyo optical frequency comb nekudzora refractive index yezvinyorwa kana geometry ye microcavity kuti iwane chaiyo-nguva mhinduro, izvo zvakakonzera shanduko yepedyo-yunifomu mune ese resonance modes mu microcavity panguva imwe chete. nguva, kushaya kugona kuzvimiririra kudzora kuwanda uye kudzokorora kwekamu.Izvi zvinomisa zvakanyanya kushandiswa kweiyo yakaderera-mwenje muzinga mune inoshanda maficha eiyo chaiyo spectroscopy, microwave mafotoni, optical kubva, nezvimwe.
Kugadzirisa dambudziko iri, timu yekutsvagisa yakaronga nzira nyowani yekuziva yakazvimiririra chaiyo-nguva mutemo wepakati frequency uye yekudzokorora frequency yeoptical frequency comb.Nekuunza nzira mbiri dzakasiyana dze micro-cavity dispersion control, timu inogona kuzvimiririra kudzora kuparadzirwa kweakasiyana maodha eiyo micro-cavity, kuitira kuti iwane kutonga kwakazara kweakasiyana mazino frequency eoptical frequency comb.Iyi dispersion regulation mechanism ndeyese kune akasiyana akabatanidzwa photonic mapuratifomu akadai sesilicon nitride uye lithium niobate, izvo zvakadzidzwa zvakanyanya.
Chikwata chekutsvagisa chakashandisa iyo yekupomba laser uye yekubatsira laser kudzora yakazvimiririra nzira dzenzvimbo dzeakasiyana maodha eiyo microcavity kuona kugadzikana kweiyo inogadziriswa yekupomba modhi frequency uye yakazvimiririra mutemo weiyo frequency comb kudzokorora frequency.Zvichienderana nemuzinga wemaziso, boka rekutsvagisa rakaratidza kukurumidza, kurongeka kuraira kweanopokana mizinga uye akaiisa kune chaiyo kuyerwa kwehurefu hwemafungu, ichiratidza wavemeter ine kuyerwa kwechiyero cheiyo kilohertz uye kugona kuyera akawanda wavelengths panguva imwe chete.Zvichienzaniswa nemigumisiro yetsvagiridzo yapfuura, kuyerwa kwechiyero chakaitwa neboka rekutsvagisa kwasvika mirairo mitatu yekuvandudzwa kwehukuru.
Iyo reconfigurable soliton microcombs inoratidzwa mune iyi mhedzisiro yekutsvagisa inoisa hwaro hwekuzadzikiswa kwemutengo wakaderera, chip integrated optical frequency standards, iyo ichashandiswa mukuyera kwakaringana, wachi yemaziso, spectroscopy uye kutaurirana.
Nguva yekutumira: Sep-26-2023