Laser tayo sare leh oo aad u dhakhso badan oo cabbirkiisu yahay faraha caaradda

Waxqabad sarelaysar aad u dhakhso badancabbirka faraha caaradda

Sida laga soo xigtay maqaal cusub oo lagu daabacay joornaalka Science, cilmi-baarayaal ka tirsan Jaamacadda Magaalada New York ayaa muujiyay hab cusub oo lagu abuuri karo waxqabad sarelaysarka aadka u dheereeyaNanophotonics. Qaabkan yar ee la xiraylaysarwuxuu soo saaraa taxane ah garaacyo isku xiran oo aad u gaaban oo iftiin ah oo ku yimaada muddooyinka femtosecond (trillionths of second).

Qaabka aadka u degdega ahlaysarkawaxay kaa caawin kartaa inaad furto sirta waqtiyada ugu dhaqsaha badan ee dabiiciga ah, sida sameynta ama jebinta isku xirnaanta molecular inta lagu jiro falgallada kiimikada, ama faafinta iftiinka warbaahinta qalalaasaha leh. Xawaaraha sare, xoogga garaaca ugu sarreeya, iyo daboolida baaxadda ballaaran ee laysarka qaabka xiran ayaa sidoo kale awood u siinaya tignoolajiyado badan oo photon ah, oo ay ku jiraan saacadaha atomka indhaha, sawir-qaadista bayoolojiga, iyo kombiyuutarrada isticmaala iftiinka si ay u xisaabiyaan una farsameeyaan xogta.

Laakiin leysarka ugu horumarsan ee qaabka xiran wali waa nidaamyo desktop ah oo aad qaali u ah, awoodna u baahan kuwaas oo ku kooban isticmaalka shaybaarka. Hadafka cilmi-baarista cusub waa in tan loo rogo nidaam cabbirkiisu yahay jajab oo si ballaaran loo soo saari karo oo loo geyn karo goobta. Cilmi-baarayaashu waxay isticmaaleen madal agab oo soo baxaya oo ah lithium niobate (TFLN) si ay si wax ku ool ah u qaabeeyaan oo si sax ah u xakameeyaan garaaca leysarka iyagoo adeegsanaya calaamadaha korontada ee raadiyaha ee dibadda. Kooxdu waxay isku dartay faa'iidada sare ee leysarka ee semiconductors-ka fasalka III-V iyo awoodaha qaabaynta garaaca oo hufan ee hagaha sawir-qaadayaasha sawirka ee TFLN nanoscale si ay u horumariyaan leysarka oo soo saaraya awood sare oo wax soo saar sare ah oo ah 0.5 watts.

Marka laga soo tago cabbirkiisa yar, kaas oo ah cabbirka faraha, leysarka cusub ee la soo bandhigay wuxuu sidoo kale muujinayaa sifooyin badan oo leysar-ka dhaqameedku aysan gaari karin, sida awoodda ay si sax ah ugu hagaajin karaan heerka ku celcelinta garaaca wax soo saarka ee ku baahsan 200 megahertz oo keliya iyadoo la hagaajinayo qulqulka bamka. Kooxdu waxay rajeyneysaa inay gaarto isha shanlada ee cabbirka jajabka, oo leh soo noqnoqoshada xasilloon iyada oo loo marayo dib-u-habaynta awoodda leh ee leysarka, taas oo muhiim u ah dareenka saxda ah. Codsiyada wax ku oolka ah waxaa ka mid ah isticmaalka taleefannada gacanta si loo ogaado cudurrada indhaha, ama in la falanqeeyo E. coli iyo fayrasyada khatarta ah ee cuntada iyo deegaanka, iyo in la suurogeliyo socodka marka GPS-ku uu dhaawacmo ama aan la heli karin.