Babban aikin ultrafast Laser mai girman girman yatsa

Babban aikiultrafast Lasergirman bakin yatsa

A cewar sabon labarin da aka buga a mujallar Kimiyya, masu bincike a Jami'ar City ta New York sun nuna wata sabuwar hanya ta haifar da babban aiki.ultrafast lasersa kan nanophotonics. Wannan ƙaramin yanayin kulle-kulleLaseryana fitar da jerin gajeriyar madaidaicin juzu'i na haske a tazara na biyu na femtosecond (trillionths of the second).

Yanayin Ultrafast-kulleLaserna iya taimakawa buɗe sirrin lokutan mafi saurin yanayi, kamar samuwar ko karya haɗin gwiwar ƙwayoyin cuta yayin halayen sinadarai, ko yaɗa haske a cikin kafofin watsa labarai masu ruɗani. Maɗaukakin saurin gudu, ƙarfin bugun bugun jini, da faffadan ɗaukar hoto na laser kulle-kulle suma suna ba da damar fasahar photon da yawa, gami da agogon atomatik, hoton halitta, da kwamfutoci waɗanda ke amfani da haske don ƙididdigewa da sarrafa bayanai.

Amma mafi ci-gaba-kulle yanayin Laser har yanzu suna da tsada sosai, tsarin tebur masu buƙatar ƙarfi waɗanda ke iyakance ga amfani da dakin gwaje-gwaje. Makasudin sabon binciken shine a mayar da wannan zuwa tsarin mai girman guntu wanda za'a iya samarwa da yawa kuma a sanya shi cikin filin. Masu binciken sun yi amfani da dandalin lithium niobate (TFLN) da ke fitowa fili don samar da tsari mai inganci da sarrafa madaidaicin bugun laser ta hanyar amfani da siginonin lantarki na mitar rediyo na waje zuwa gare shi. Ƙungiyar ta haɗu da babbar riba ta Laser na aji na III-V semiconductor tare da ingantacciyar ƙarfin sifar bugun jini na TFLN nanoscale photonic waveguides don haɓaka laser wanda ke fitar da babban ƙarfin fitarwa na 0.5 watts.

Bugu da ƙari ga ƙaƙƙarfan girmansa, wanda shine girman ɗan yatsa, sabuwar fasahar kulle-kulle ta Laser tana kuma nuna wasu kaddarorin da lasers na gargajiya ba zai iya cimmawa ba, kamar ikon daidaita ƙimar maimaitawar bugun jini akan bugun jini. m kewayon 200 megahertz kawai ta daidaita famfo halin yanzu. Tawagar tana fatan cimma ma'aunin guntu, tushen tsefe mai mitar ta hanyar sake fasalin laser mai ƙarfi, wanda ke da mahimmanci don tantance daidai. Aikace-aikace masu amfani sun haɗa da amfani da wayar hannu don tantance cututtukan ido, ko bincika E. coli da ƙwayoyin cuta masu haɗari a cikin abinci da muhalli, da kuma ba da damar kewayawa lokacin da GPS ta lalace ko babu.