Saxnaanta cabbirka hirarka waxay ku jirtaa habka kilohertz

Dhawaan ayay Jaamacadda Sayniska iyo Teknolojiyadda Shiinaha ka barteen, kooxda aqoonyahannada ee jaamacadda Guo Guangcan Professor Dong Chunhua iyo la-hawlgalayaasha Zou Changling waxay soo jeediyeen farsamo xakameyn oo caalami ah oo ku saabsan kala-fidinta godadka yaryar, si loo gaaro xakamaynta madax-bannaan ee waqtiga dhabta ah ee soo noqnoqoshada xarunta shanlada ee soo noqnoqoshada indhaha iyo soo noqnoqoshada ku celcelinta, waxaana lagu dabaqay cabbirka saxda ah ee hirarka indhaha, saxnaanta cabbirka hirarka ayaa kor u kacday ilaa kilohertz (kHz). Natiijooyinka waxaa lagu daabacay Nature Communications.
Mikrocombs-ka Soliton ee ku salaysan mikrocombs-ka indhaha ayaa soo jiitay xiiso cilmi-baaris oo weyn oo ku saabsan goobaha spectroscopy-ga saxda ah iyo saacadaha indhaha. Si kastaba ha ahaatee, sababtoo ah saameynta buuqa deegaanka iyo laysarka iyo saameynta dheeraadka ah ee aan tooska ahayn ee mikrocomb-ka, xasilloonida mikrocomb-ka soliton aad ayay u xaddidan tahay, taas oo noqota caqabad weyn oo ku timaada isticmaalka wax ku oolka ah ee shanlada heerka iftiinka hooseeya. Shaqooyinkii hore, saynisyahannadu waxay dejiyeen oo xakameeyeen shanlada soo noqnoqoshada indhaha iyagoo xakameynaya tusmada refractive ee maaddada ama joomatari ee mikrocomb-ka si loo gaaro jawaab celin waqti-dhab ah, taas oo keentay isbeddello ku dhow midaysan dhammaan qaababka resonance-ka ee mikrocomb-ka isku mar, iyagoo aan lahayn awood ay si madax-bannaan u xakameeyaan soo noqnoqoshada iyo ku celcelinta shanlada. Tani waxay si weyn u xaddidaysaa isticmaalka shanlada iftiinka hooseeya ee muuqaallada wax ku oolka ah ee spectroscopy-ga saxda ah, fotonada microwave-ka, kala-soocidda indhaha, iwm.

Si loo xalliyo dhibaatadan, kooxda cilmi-baaristu waxay soo jeediyeen farsamo jireed oo cusub si loo xaqiijiyo nidaaminta waqtiga-dhabta ah ee madax-bannaan ee soo noqnoqoshada dhexe iyo soo noqnoqoshada soo noqnoqoshada ee shanlada soo noqnoqoshada indhaha. Iyagoo soo bandhigaya laba hab oo kala duwan oo lagu xakameynayo kala-soocidda godadka yar-yar, kooxdu waxay si madax-bannaan u xakamayn kartaa kala-soocidda kala-soocidda godadka yar-yar, si loo gaaro xakameyn buuxda oo ku saabsan soo noqnoqoshada ilkaha ee kala duwan ee shanlada soo noqnoqoshada indhaha. Habkan nidaaminta kala-soocidda waa mid caalami ah oo loogu talagalay goobaha kala duwan ee isku dhafan ee photonic sida silicon nitride iyo lithium niobate, kuwaas oo si ballaaran loo bartay.

Kooxda cilmi-baarista waxay adeegsadeen laysarka bamgareynta iyo laysarka caawiya si ay si madax-bannaan u xakameeyaan qaababka booska ee kala-soocidda kala duwan ee microcavity-ga si loo xaqiijiyo xasilloonida la qabsiga ee soo noqnoqoshada habka bamgareynta iyo nidaaminta madax-bannaan ee soo noqnoqoshada soo noqnoqoshada shanlada. Iyada oo lagu saleynayo shanlada indhaha, kooxda cilmi-baaristu waxay muujiyeen nidaamin degdeg ah oo la barnaamijin karo oo ku saabsan soo noqnoqoshada shanlada ee aan kala sooca lahayn waxayna ku dabaqeen cabbirka saxda ah ee dhererka hirarka, iyagoo muujinaya mitir hirar oo leh saxnaanta cabbirka ee kala-soocidda kilohertz iyo awoodda lagu cabbiro hirar badan isku mar. Marka la barbardhigo natiijooyinkii cilmi-baarista ee hore, saxnaanta cabbirka ee ay gaareen kooxda cilmi-baaristu waxay gaartay saddex heer oo horumar baaxad leh.

Mikrocombs-ka soliton ee dib loo habeyn karo ee lagu muujiyay natiijadan cilmi-baarista ayaa aasaaska u ah hirgelinta heerarka soo noqnoqda ee indhaha ee jaban, ee isku dhafan ee chip-ka, kuwaas oo lagu dabaqi doono cabbirka saxda ah, saacadda indhaha, spectroscopy-ga iyo isgaarsiinta.