Laser inokurumidza kushanda nesimba yakakura semuromo wemunwe

Kushanda kwepamusorolaser inokurumidza zvikurusaizi yemunwe

Sekureva kwechinyorwa chitsva chebutiro chakaburitswa mujenari reScience, vaongorori veCity University of New York vakaratidza nzira itsva yekugadzira mashandiro epamusorolasers dzinokurumidza kwazvopa nanophotonics. Iyi mode diki yakakiyiwalaserinoburitsa nhevedzano yechiedza chipfupi-pfupi panguva dze femtosecond (trillionths yesekondi).

Ultrafast mode-yakavharwalaserszvinogona kubatsira kuvhura zvakavanzika zvenguva dzinokurumidza dzechisikigo, zvakaita sekuumbwa kana kutyoka kwemamorekuru panguva yekuchinja kwemakemikari, kana kupararira kwechiedza mumhepo ine ruzha. Kumhanya kwakanyanya, simba rekurova kwemoyo, uye kufukidza kwakafara kwemalaser akavharirwa nemode kunogonesawo matekinoroji mazhinji ephoton, anosanganisira maotomic clock, biological imaging, uye makomputa anoshandisa chiedza kuverenga nekugadzirisa data.

Asi ma-laser emhando yepamusoro-soro anovharwa nemode achiri kudhura zvakanyanya, masisitimu edesktop anoda simba anongoshandiswa murabhoritari chete. Chinangwa chetsvakiridzo itsva ndechekushandura iyi kuita sisitimu yakakura sechip inogona kugadzirwa yakawanda uye kuiswa mumunda. Vaongorori vakashandisa puratifomu yezvinhu zvinobuda yethin-film lithium niobate (TFLN) kuti vagadzire uye vatonge nemazvo mapulse elaser nekushandisa masaini emagetsi ekunze eredhiyo. Chikwata ichi chakabatanidza kuwana kwakanyanya kwelaser kwema semiconductors ekirasi III-V nehunyanzvi hwekuita mapulse eTFLN nanoscale photonic waveguides kugadzira laser inoburitsa simba repamusoro re 0.5 watts.

Kuwedzera pahukuru hwayo hudiki, hunova hukuru hwemunwe, laser ichangobva kuratidzwa ine mode-locked inoratidzawo hunhu hwakati wandei husingakwanise kuwanikwa nema laser echinyakare, sekukwanisa kugadzirisa zvakananga kudzokorora kwemhepo inobuda pamusoro pe200 megahertz nekungogadzirisa pombi yemagetsi. Chikwata ichi chinotarisira kuwana chitubu chemuzinga une chip-scale, frequency-stable comb kuburikidza nekuchinja kwakasimba kwe laser, izvo zvakakosha pakuona kwakarurama. Mashandisirwo anoshanda anosanganisira kushandiswa kwemafoni ekuongorora zvirwere zvemaziso, kana kuongorora E. coli nemavhairasi ane njodzi muchikafu nenzvimbo, uye kugonesa kufamba kana GPS yakuvara kana isipo.