Waa maxay micro-nano photonics?

Micro-nano photonics inta badan waxay daraasaysaa sharciga is dhexgalka u dhexeeya iftiinka iyo walaxda ee mikro iyo nano miisaanka iyo codsigeeda jiilka iftiinka, gudbinta, nidaaminta, ogaanshaha iyo dareenka.Micro-nano photonics-ka-mawjadaha-mawjadaha-hoosaadka waxay si wax ku ool ah u wanaajin karaan heerka is-dhexgalka photon, waxaana la filayaa in lagu dhex daro qalabka photonic chip-ka yar ee indhaha sida chips electronic.Nano-surface plasmonics waa goob cusub oo ah micro-nano photonics, kaas oo inta badan daraaseeya isdhexgalka ka dhexeeya iftiinka iyo walxaha ee nanostructures biraha.Waxay leedahay sifooyinka cabbirka yar yar, xawaaraha sare iyo ka gudubka xadka kala duwanaanshaha dhaqameed.Qaab dhismeedka nanoplasma-waveguide, kaas oo leh wanaajinta goobta wanaagsan iyo sifooyinka shaandhaynta dhawaaqa, waa saldhigga nano-filter, Multixer qaybinta hirarka dhererka, furaha indhaha, laser iyo aaladaha kale ee micro-nano indhaha.Microcavities indhaha waxay ku koobaan iftiinka gobollada yaryar waxayna si weyn u xoojiyaan isdhexgalka iftiinka iyo walxaha.Sidaa darteed, microcavity indhaha oo leh arrin tayo sare leh ayaa ah hab muhiim ah oo lagu ogaanayo dareenka sare iyo ogaanshaha.

microcavity WGM

Sanadihii la soo dhaafay, microcavity indhaha ayaa soo jiidatay dareen badan sababtoo ah awooddeeda weyn ee codsiga iyo muhiimada sayniska.Cajiibka indhaha wuxuu inta badan ka kooban yahay microsphere, microcolumn, microring iyo joomateriyada kale.Waa nooc ka mid ah resonator indhaha ku tiirsan qaab-dhismeedka.Mowjadaha iftiinka ee godad yar yar ayaa si buuxda uga muuqda is-dhex galka yare-yar, taasoo keentay hab dhawaaqeed oo loo yaqaan 'whispering gallery mode' (WGM).Marka la barbar dhigo resonators kale ee indhaha, microresonators waxay leeyihiin sifooyinka qiimaha Q sare (ka weyn 106), mugga qaab hooseeya, cabbir yar iyo is-dhexgalka fudud, iwm. ficil aan toos ahayn.Hadafkayaga cilmi-baarista waa in la helo oo aan barano sifooyinka qaababka kala duwan iyo qaababka kala duwan ee microcavities, iyo in lagu dabaqo sifooyinkan cusub.Tilmaamaha cilmi-baarista ee ugu muhiimsan waxaa ka mid ah: cilmi-baarista sifooyinka indhaha ee microcavity WGM, cilmi-baarista wax-soo-saarka ee microcavity, cilmi-baarista codsiga ee daloolka yar yar, iwm.

Dareemada biochemical ee microcavity WGM

Tijaabada, qaabka afar-dalab ee sare-sare ee WGM-ka M1 (FIG. 1 (a)) ayaa loo isticmaalay cabbiraadda dareenka.Marka la barbardhigo habka hoose ee nidaamka, dareenka nidaamka sare ayaa si weyn loo hagaajiyay (FIG. 1 (b)).

Jaantuska 1. Habka dhawaaqa (a) ee godka microcapillary iyo dareenkiisa dib u soo celinta u dhigma (b)

Shaandheeyaha indhaha la hagaajin karo oo leh qiime Q sare

Marka hore, shucaaca si tartiib tartiib ah u beddelaya microcavity cylindrical ayaa la soo saaray, ka dibna hagaajinta hirarka dhererka waxaa lagu gaari karaa iyadoo si farsamaysan loo dhaqaajinayo booska isku xirka iyadoo lagu saleynayo mabda'a cabbirka qaabka tan iyo hirarka resonant (Jaantus 2 (a)).Waxqabadka la hagaajin karo iyo baaxadda shaandhaynta ayaa lagu muujiyay sawirka 2 (b) iyo (c).Intaa waxaa dheer, qalabku wuxuu ogaan karaa dareenka barokaca indhaha oo leh saxnaanta nanometer-hoosaadka.

Jaantuska 2. Jaantuska jaantuska shaandhaynta indhaha ee la hagaajin karo (a), waxqabadka la hagaajin karo (b) iyo shaandhaynta xawaaraha (c)

WGM microfluidic resonator

in chip microfluidic ah, gaar ahaan loogu talagalay dhibicda saliidda (dhibcaha in-saliid), ay sabab u tahay sifooyinka xiisadda dusha, waayo, dhexroor tobanaan ama xataa boqolaal microns, waxaa la hakiyay doonaa in saliidda, samaynta a ku dhawaad. goob qumman.Iyada oo la hagaajinayo index refractive, dhibicda lafteedu waa resonator wareegsan oo qumman oo leh arrin tayo leh oo ka badan 108. Waxa kale oo ay ka fogaataa dhibaatada uumiga ee saliidda.Dhibcaha tirada badan ee waaweyn, waxay ku fadhiisan doonaan gidaarada dhinaca sare ama hoose sababtoo ah kala duwanaanshaha cufnaanta.Noocaan dhibicda ah wuxuu isticmaali karaa oo kaliya habka kicinta dambe.