Ifotonikisi ya micro-nano yiga cyane cyane itegeko ry’imikoranire hagati y’urumuri n’ibintu ku gipimo cya micro na nano ndetse n’ikoreshwa ryarwo mu gutanga urumuri, kohereza, kugenzura, kumenya no kumva. Ibikoresho bya micro-nano photonics bishobora kunoza neza urwego rwo guhuza fotoni, kandi byitezwe ko bizahuza ibikoresho bya photonic mu mashini ntoya y’urumuri nka mashini z’ikoranabuhanga. Plasmonikisi ya nano-surface ni ishami rishya rya fotonikisi ya micro-nano, ryiga ahanini imikoranire hagati y’urumuri n’ibintu mu byuma bito. Rifite imiterere y’ingano nto, umuvuduko mwinshi no kurenga umupaka usanzwe w’urumuri. Imiterere ya Nanoplasma-waveguide, ifite imiterere myiza yo kunoza imirima no kuyungurura resonance, ni yo shingiro rya nano-filter, multiplexer yo kugabanya ubunini bw’urumuri, switch y’urumuri, laser n’ibindi bikoresho bya micro-nano optique. Ifotonikisi ya micro-nano optique igabanya urumuri mu turere duto kandi yongera cyane imikoranire hagati y’urumuri n’ibintu. Kubwibyo, fotonikisi ya micro-nano optique ifite ubwiza bwo hejuru ni uburyo bw’ingenzi bwo kumenya no gutahura imiterere y’urumuri.
Umwobo muto wa WGM
Mu myaka ya vuba aha, microcavity y'amatara yakuruye abantu benshi bitewe n'ubushobozi bwayo bukomeye bwo kuyikoresha n'akamaro kayo mu bya siyansi. Microcavity y'amatara igizwe ahanini na mikorosfe, microcolumn, microring n'izindi geometries. Ni ubwoko bwa resonator y'amatara ishingiye ku miterere. Imiraba y'urumuri muri microcavity igaragara neza ku buryo bwa microcavity, bigatuma habaho uburyo bwa resonance bwitwa whispering gallery mode (WGM). Ugereranyije n'izindi resonator z'amatara, microresonators zifite imiterere ya Q value iri hejuru (irenze 106), ingano ntoya y'uburyo, ingano ntoya no koroshya guhuza, nibindi, kandi zakoreshejwe mu kumenya biochemical sensitivity high-sensitivity, ultra-low threshold laser na nonlinear action. Intego yacu y'ubushakashatsi ni ugushaka no kwiga imiterere itandukanye n'imiterere itandukanye ya microcavity, no gushyira mu bikorwa iyi miterere mishya. Amabwiriza y'ingenzi y'ubushakashatsi arimo: ubushakashatsi ku miterere ya WGM microcavity, ubushakashatsi ku gukora microcavity, ubushakashatsi ku miterere ya microcavity, nibindi.
Gupima ibinyabutabire bya WGM mu bwonko
Mu igerageza, uburyo bwa WGM bwo mu byiciro bine bwakoreshejwe mu gupima M1 (Ishusho ya 1 (a)) mu gupima. Ugereranyije n'uburyo bwa low-order, ubushobozi bwo kumenya ibintu bwarushijeho kuba bwiza (Ishusho ya 1 (b)).
Ishusho ya 1. Uburyo bwo kugarura (a) bw'umwobo wa mikorobe hamwe n'uburyo bwo kugabanya ubukana bw'ishusho ya refractive (b)
Akayunguruzo k'urumuri gashobora guhindurwa gafite agaciro ka Q gakomeye
Ubwa mbere, microcavity ya cylindrical ihinduka buhoro buhoro irakurwamo, hanyuma uburyo bwo guhindura uburebure bw'umurambararo bushobora kugerwaho hifashishijwe ikoranabuhanga ryo kwimura aho umurongo uhurira hashingiwe ku ihame ry'ingano y'imiterere kuva ku bunini bw'umurambararo (Ishusho ya 2 (a)). Uburyo bwo guhindura imikorere n'uburyo bwo kuyungurura bigaragazwa ku Ishusho ya 2 (b) na (c). Byongeye kandi, igikoresho gishobora kubona uburyo bwo kumenya aho umurongo unyura hakoreshejwe uburyo bworoshye bwo kugenzura.
Ishusho ya 2. Ishusho y'icyitegererezo cy'akayunguruzo k'urumuri gashobora guhinduka (a), imikorere ishoboka guhinduka (b) na bandwidth y'akayunguruzo (c)
Resonator ya WGM microfluidic drop
Mu gice cy’amazi make, cyane cyane ku gitonyanga kiri mu mavuta (igitonyanga kiri mu mavuta), bitewe n’imiterere y’ubuso bw’amazi, ku murambararo wa mikoroni mirongo cyangwa amagana, kizashyirwa muri mavuta, kigakora uruziga rutunganye. Binyuze mu gutunganya neza igipimo cyo kugarura ubushyuhe, igitonyanga ubwacyo ni resonator nziza ifite ubushobozi bwo kuzura burenze 108. Kirinda kandi ikibazo cyo guhumeka mu mavuta. Ku bitonyanga binini, "biguma" ku nkuta zo hejuru cyangwa zo hepfo bitewe n’itandukaniro ry’ubucucike. Ubu bwoko bw’igitonyanga bushobora gukoresha gusa uburyo bwo gushyushya impande.
Igihe cyo kohereza: Ukwakira-23-2023