Beddel xawaaraha garaaca ee laysarka aadka u gaaban ee aadka u xooggan

Beddel xawaaraha garaaca wadnahalaser aad u gaaban oo aad u xoog badan

Laysarka aadka u gaaban guud ahaan waxaa loola jeedaa garaaca laysarka oo leh ballaca garaaca tobanaan iyo boqolaal ilbiriqsi oo femtosecond ah, awoodda ugu sarreysa ee terawatts iyo petawatts, iyo xoogga iftiinka diiradda saaraya wuxuu ka badan yahay 1018 W/cm2. Laysarka aadka u gaaban iyo isha shucaaca ee uu soo saaray iyo isha walxaha tamarta sare leh waxay leeyihiin qiime codsi oo ballaaran oo ku saabsan jihooyin badan oo cilmi baaris aasaasi ah sida fiisigiska tamarta sare, fiisigiska walxaha, fiisigiska balaasmaha, fiisigiska nukliyeerka iyo xiddigiska, natiijada cilmi-baarista sayniskana waxay markaa u adeegi kartaa warshadaha tiknoolajiyada sare ee khuseeya, caafimaadka caafimaadka, tamarta deegaanka iyo amniga difaaca qaranka. Tan iyo markii la ikhtiraacay tignoolajiyada kor u qaadista garaaca wadnaha ee la shiiday 1985, soo ifbixidda watt-kii ugu horreeyay ee adduunka garaaca.laysarSannadkii 1996 iyo dhammaystirkii laser-ka 10-garaac watt ee ugu horreeyay adduunka sannadkii 2017, diiradda laser-ka aadka u gaaban ee aadka u gaaban waagii hore waxay inta badan ahayd in la gaaro "iftiinka ugu xooggan". Sannadihii ugu dambeeyay, daraasado ayaa muujiyay in iyadoo la ilaalinayo garaaca laser-ka aadka u sarreeya, haddii xawaaraha gudbinta garaaca ee laser-ka aadka u gaaban la xakamayn karo, waxay keeni kartaa labanlaab natiijada iyadoo kala bar dadaalka lagu jiro codsiyada jireed qaarkood, taasoo la filayo inay hoos u dhigto cabbirka super-gaag-gaaban.aaladaha laysarka, laakiin waxay wanaajisaa saameynteeda tijaabooyinka fiisigiska laysarka ee goobta sare.

Walaac ku yimaada dhinaca hore ee garaaca wadnaha ee laysarka aadka u gaaban ee aadka u xooggan
Si loo helo awoodda ugu sarreysa ee tamarta xaddidan, ballaca garaaca waxaa loo dhimayaa 20 ~ 30 ilbiriqsi oo femtoseconds ah iyadoo la ballaarinayo ballaca faa'iidada. Tamarta garaaca ee laser-ka 10-beak-watt ee hadda jira waa qiyaastii 300 joules, heerka dhaawaca yar ee shabagga kombaresarada ayaa ka dhigaya daloolka alwaaxa guud ahaan inuu ka weyn yahay 300 mm. Birta garaaca oo leh ballaca garaaca femtosecond 20 ~ 30 ilbiriqsi iyo daloolka 300 mm ayaa si fudud loogu qaadi karaa qallooca isku-xidhka booska, gaar ahaan qallooca hore ee garaaca wadnaha. Jaantuska 1 (a) wuxuu muujinayaa kala-soocidda booska-ku-meel-gaarka ah ee hore ee garaaca wadnaha iyo hore ee wejiga oo ay sababto kala-soocidda doorka alwaaxa, kan horena wuxuu muujinayaa "jeexitaan booska-ku-meel-gaarka ah" marka loo eego kan dambe. Kan kale waa "qalooca waqtiga-ku-meel-gaarka ah" oo aad u adag oo ay keento nidaamka muraayadda. Jaantuska 1 (b) wuxuu muujinayaa saameynta garaaca wadnaha ee hore, garaaca wadnaha ee u janjeera hore iyo kan qaloocan ee hore ee garaaca wadnaha ee ku habboon qallooca booska-ku-meel-gaarka ah ee goobta iftiinka ee bartilmaameedka. Natiijo ahaan, xoogga iftiinka diiradda la saaray ayaa si weyn hoos ugu dhacaya, taas oo aan ku habboonayn codsiga xooggan ee goobta ee laser-ka aadka u gaaban.

Jaantuska 1aad (a) u janjeersiga hore ee garaaca wadnaha oo ay sababeen prism-ka iyo shabagga, iyo (b) saameynta qallooca hore ee garaaca wadnaha ee goobta iftiinka waqtiga-waqtiga ee bartilmaameedka

Xakamaynta xawaaraha garaaca wadnaha ee aadka u xoogganlaysarka aadka u gaaban
Waqtigan xaadirka ah, fallaadhaha Bessel ee ay soo saaraan hirarka toosan ee hirarka diyaaradda ayaa muujiyay qiimaha codsiga ee fiisigiska laysarka goobta sare. Haddii fallaadhaha garaaca ee toosan ee la dul saaray ay leeyihiin qaybinta garaaca hore ee axisymmetric, markaa xoojinta xarunta joomatari ee baakadka hirarka X-ray ee la soo saaray sida ku cad Jaantuska 2 waxay noqon kartaa mid joogto ah oo sare, mid joogto ah oo hoose, mid degdeg ah oo sare, iyo mid hoos u dhac ah oo hooseeya. Xitaa isku-darka muraayadda isbeddelaysa iyo nooca wejiga ee modulator-ka iftiinka booska ayaa soo saari kara qaab aan kala sooc lahayn oo ku-meel-gaar ah oo hore ee garaaca wadnaha ah, ka dibna soo saari kara xawaaraha gudbinta ee la xakamayn karo oo aan kala sooc lahayn. Saamaynta jireed ee kor ku xusan iyo tignoolajiyadeeda wax-ka-beddelka ayaa u beddeli kara "qallooca" hore ee garaaca wadnaha "xakamaynta" hore ee garaaca wadnaha, ka dibna xaqiijin kara ujeeddada wax ka beddelka xawaaraha gudbinta ee laysarka aadka u gaaban ee aadka u xooggan.

Jaantuska 2aad (a) joogtada ah ee ka dhaqso badan iftiinka, (b) iftiinka hoose ee joogtada ah, (c) dardargelinta si ka dhakhso badan iftiinka, iyo (d) garaaca iftiinka hoose ee hoos u dhaca ee uu dhaliyo booska sare waxay ku yaalliin bartamaha joomatari ee gobolka booska sare

In kasta oo helitaanka qallooca hore ee garaaca wadnaha uu ka horreeyo laysarka aadka u gaaban, haddana waxaa si weyn looga walaacsanaa horumarinta laysarka aadka u gaaban. Muddo dheer, ma aha mid ku habboon xaqiijinta yoolka ugu muhiimsan ee laysarka aadka u gaaban - xoogga iftiinka diiradda saaraya aadka u sarreeya, cilmi-baarayaashuna waxay ka shaqeynayeen sidii loo xakameyn lahaa ama loo baabi'in lahaa qallooca hore ee garaaca wadnaha ee kala duwan. Maanta, markii "qallooca hore ee garaaca wadnaha" uu isu beddelay "xakamaynta hore ee garaaca wadnaha", waxay gaartay nidaaminta xawaaraha gudbinta ee laysarka aadka u gaaban, iyadoo bixinaysa habab cusub iyo fursado cusub oo loogu talagalay isticmaalka laysarka aadka u gaaban ee fiisigiska laysarka goobta sare.