Beddel xawaaraha garaaca garaaca wadnaha ee ku-meel-gaarka ah

Beddel xawaaraha garaaca wadnaha eeUltrashits ultrashit-adag

Lasers gaagaaban oo gaagaaban guud ahaan waxay tixraacaan laser-ka luqlaadka garaaca garaaca wadnaha ee tobanka iyo boqolaal feheak, petwatts-ka, iyo xoojinta xoogga leh ee Petwars-ka ayaa ka badan 1018 w / cm2. Super-ga gaagaaban oo gaagaaban iyo isha sare ee ilaha shucaaca iyo ilaha tamarta sare waxay leeyihiin tixraacyo fara badan oo kala duwan oo ah tamar badan oo tabarro ah, iyo soo saarida caafimaadka ee ku habboon, caafimaadka bulshada, tamarta deegaanka iyo amniga difaaca bulshada. Tan iyo markii la soo saaray ee tikniyoolajiyadda cod-weyneynta garaaca wadnaha ee 1985, soo bixitaanka garaacista koowaad ee adduunka ee WatchlaserSannadkii 1996-kii iyo dhameystirka World 10-garaaciskii ugu horreeyay ee WATT Laser sanadkii 2017, ayaa diiradda la saaray Laser gaagaaban ee super-ga gaaban ee la soo dhaafay ay inta badan ahayd in lagu gaaro "nalka ugu daran". Sanadihii la soo dhaafay, daraasaduhu waxay muujiyeen in hoos timaadda lagu hayo super Laser Laser Laser ee laser-ga super-ga gaagaaban, waxaa laga yaabaa inay laba jeer ka dhalato badhta arimaha jidhka, kaas oo la dhimayo in la yareeyo qiyaasta 'ultra' gaagaaban.aaladaha laser, laakiin wanaajinta saamaynta ay ku leedahay tijaabooyinka fisitaanka ee sare ee laser.

Dhalanrog of garaaca wadnaha ee hore ee ultra-adag ee ultrashit ultrashit loser
Si loo helo awoodda ugu sarreysa ee tamar xadidan, ballaca wadnaha garaaca wadnaha ayaa la dhimay ilaa 20 ~ 30 femtoseconds iyadoo la ballaadhiyo in lagu ballaariyo xargaha bandwidth. Tamarta garaaca wadnaha ee 10-beat-watt ee hadda jira-gaaban Laydhka garaaca wadnaha ee 20 ~ 30 femtosecond ballac, 300 mm oo ah sperture 300 mm ayaa sahlan in lagu qaado dhalanrog isku xidhka, gaar ahaan dhalanroggii garaaca wadnaha. Jaantus 1 (a) wuxuu muujinayaa kala goynta ku-meel-gaarka ah ee ku-meel-gaarka ah ee garaaca wadnaha iyo wejiga hore ee uu sababay kala-firidhda doorka ee doorka, kii horena wuxuu muujinayaa "mid ku-meel-gaar ah oo ku-meel-gaar ah" oo la xidhiidha kan dambe. Midda kale ayaa ah kuwa ka sii adag "curvature ee waqtiga-ka-dhaca" ee ay sababaan nidaamka lens. Sawir 1 (b) Wuxuu muujiyaa saameynta garaaca garaaca garaaca garaaca garaaca garaaca garaaca wadnaha, dhinaca hore ee garaaca wadnaha ee dhallaanka ku-meel-gaarka ah ee ku---adada-ku-----lada ee ku-meel-gaarka ah ee bartilmaameedka. Natiijo ahaan, xoojinta xoogga xoojinta ayaa si weyn hoos loogu dhigay, oo aan u qalmin arjiga goobta adag ee loo yaqaan 'supt-ka gaagaaban'.

Sawir 1 (a) jilbaha hore ee garaaca wadnaha ee uu sababay xabadka iyo weelka, iyo (b) saamaynta dhalanroggida garaacista garaaca wadnaha ee bartilmaameedka

Kontroolka garaaca xawaaraha ee adagultrashit Laser
Waqtigan xaadirka ah, alwaaxyada Bessel ee ay soo saareen kormeer toosan oo ah mowjadaha diyaaradda ayaa muujiyey qiimaha dalabka ee fisikiska dusha sare ee laser. Haddii nambarka saliida leh ee isku-dhafka ah ee sawir-qaadista ah, markaa xoojinta jihada jihada ee xirmooyinka mowjadda xijaab ee xasaasiyadeed ee ka muuqata Jaantuska 2aad, Supblumaninal-ka joogtada ah, iyo supbluminal-ka, iyo kiridka khiyaanada. Xitaa isku darka muraayadda jilicsan iyo nooca wajiga iftiinka ee modulator-ka ah ayaa soo saari kara qaab kumeel gaar ah oo ku-meel-gaar ah oo kumeelgaar ah garaaca wadnaha, ka dibna soo saar xawaare is xakameyn karo oo aan sabab lahayn. Saamaynta kor ku xusan ee jir ahaaneed iyo tikniyoolajiyadeeda isbedelka ah waxay u beddeli kartaa "dhalanrog" ee garaaca wadnaha ee garaaca wadnaha ee garaaca wadnaha, ka dibna la gartaa ujeedada lagu beddelo xawaaraha faafinta xawaaraha gaagaaban ee ultra-ga gaaban.

Sawir 2 (a) si dhakhso ah - (b) oo joogto ah, (b) deganaan joogto ah,

In kasta oo daahfurka garaaca wadnaha ee garaaca wadnaha uu yahay mid ka hor leser gaagaaban oo gaagaaban, si aad ah looga walaaco oo ay weheliso horumarka super-ga gaagaaban ee gaagaaban. Muddo dheer, ma aha wax u qalma xaqiijinta himilada aasaasiga ah ee laser-gaaga gaagaaban - xoojinta xoogga xoojinta, iyo cilmi-baarayaashu waxay ka shaqeynayeen inay xakameeyaan ama baabi'inta garaacista garaaca wadnaha ee garaaca wadnaha. Maanta, markii "garaaca wadnaha ee" garaaca wadnaha "wuxuu ku dhacay" xakameynta garaaca wadnaha ", waxay ku guuleysatay qaanuunka xawaaraha sare ee laser-gaaban, oo siinta qaabab cusub iyo fursado cusub oo loo adeegsado laser-gaaban ee fiisigiska garka-sare.