Uburinganire bw'ubunini bw'urumuri buri mu cyiciro cya kilohertz

Itsinda ry’abahanga mu by’ubumenyi rya kaminuza ya Guo Guangcan, Porofeseri Dong Chunhua n’umufatanyabikorwa Zou Changling, baherutse kwigira muri Kaminuza y’Ubumenyi n’Ikoranabuhanga y’Ubushinwa, batanze igitekerezo cy’uburyo bwo kugenzura ikwirakwizwa ry’ibice bito bito, kugira ngo hagerwe ku igenzura ryigenga ry’impinduka z’amajwi n’impinduka zisubiramo, kandi bakoresheje uburyo bwo gupima neza uburebure bw’amajwi, ubuziranenge bw’ubunini bw’amajwi bwariyongereye bugera kuri kilohertz (kHz). Ibyavuye mu bushakashatsi byasohotse muri Nature Communications.
Udukoryo twa Soliton dushingiye ku dukoryo duto tw’amatara twakuruye ubushakashatsi bwinshi mu bijyanye na spectroscopy igezweho n’amasaha y’urumuri. Ariko, bitewe n’ingaruka z’urusaku rw’ibidukikije n’urwa laser ndetse n’izindi ngaruka zitari umurongo mu mato muri mato, ubushobozi bwa ton microcomb ni buke cyane, ibyo bikaba imbogamizi ikomeye mu ikoreshwa ry’urumuri ruto rw’amatara. Mu mirimo yabanje, abahanga mu bya siyansi bahamye kandi bagenzura frequency comb bagenzura index ya refractive y’ibikoresho cyangwa imiterere ya ton microcavity kugira ngo babone igisubizo mu gihe nyacyo, ibyo bikaba byarateje impinduka hafi ya zose mu buryo bwose bwa resonance muri ton microcavity icyarimwe, badafite ubushobozi bwo kugenzura frequency n’isubiramo ry’urumuri. Ibi bigabanya cyane ikoreshwa ry’urumuri ruto mu bice by’ingenzi bya spectroscopy ifatika, fotoni za microwave, optical ranging, nibindi.

Kugira ngo iki kibazo gikemuke, itsinda ry’abashakashatsi ryatanze uburyo bushya bwo kugenzura inshuro zo hagati mu buryo bwigenga n’inshuro zo gusubiramo kw’imashini zikoresha ikoranabuhanga. Binyuze mu gushyiraho uburyo bubiri butandukanye bwo kugenzura ikwirakwizwa ry’imashini zikoresha ikoranabuhanga, itsinda rishobora kugenzura ku buryo bwigenga ikwirakwizwa ry’imashini zikoresha ikoranabuhanga ritandukanye, kugira ngo rigenzure neza intera zitandukanye z’amenyo y’imashini zikoresha ikoranabuhanga rikoresha ikoranabuhanga rigezweho. Ubu buryo bwo kugenzura ikwirakwizwa ry’imashini bukoreshwa ku buryo buhuriweho n’abantu benshi nka silicon nitride na lithium niobate, byakozweho ubushakashatsi bwinshi.

Itsinda ry’ubushakashatsi ryakoresheje laser yo gupompa n’iyo gufasha laser kugira ngo rigenzure ku buryo bwihariye uburyo butandukanye bw’imiterere y’aho ibintu biherereye kugira ngo rimenye uburyo bwo guhindura imiterere y’uburyo bwo gupompa no kugenzura imiterere y’uburyo bwo gusubiramo imiterere y’inshuro. Hashingiwe ku gikoresho cy’ijisho, itsinda ry’ubushakashatsi ryagaragaje uburyo bwihuse kandi bushoboka bwo kugenzura imiterere y’inshuro zo gupompa kandi rigakoresha uburyo bwo gupima neza uburebure bw’umuraba, rigaragaza icyuma gipima neza gifite uburyo bwa kilohertz n’ubushobozi bwo gupima uburebure bw’umuraba bwinshi icyarimwe. Ugereranyije n’ibyavuye mu bushakashatsi bwabanje, uburyo itsinda ry’ubushakashatsi ryapimye neza bugeze ku byiciro bitatu by’iterambere ry’ubunini.

Udukoresho duto twa soliton dushobora guhindurwa twagaragajwe muri ubu bushakashatsi twashyizeho urufatiro rwo gushyira mu bikorwa amahame y’impinduka z’urumuri rw’amashanyarazi ahendutse, azakoreshwa mu gupima neza, isaha y’urumuri, spectroscopy no gutumanaho.