Soo noqnoqoshada sare ee ilayska ultraviolet ee xad dhaafka ah

Soo noqnoqoshada sare ee ilayska ultraviolet ee xad dhaafka ah

Farsamooyinka cadaadiska ka dib oo ay weheliyaan beero laba midab leh ayaa soo saara il iftiin ultraviolet aad u sarreeya.
Codsiyada Tr-ARPES, yaraynta mowjadaha dhererka iftiinka wadista iyo kordhinta suurtogalnimada ionization gaaska ayaa ah habab wax ku ool ah oo lagu helo qulqulka sare iyo iswaafajinta nidaamka sare. Inta lagu jiro habka soo saarista harmonics-sare oo leh hal-baas oo soo noqnoqonaya soo noqnoqoshada sare ee soo noqnoqda, habka labanlaabmay ama saddex-laabashada soo noqnoqda ayaa asal ahaan la qaatay si loo kordhiyo waxtarka wax-soo-saarka ee isku-habboonaanta sare. Iyada oo la kaashanayo cadaadiska garaaca wadnaha ka dambeeya, way fududahay in la gaaro cufnaanta awoodda ugu sarreysa ee looga baahan yahay jiilka isku-dhafka ah ee nidaamka sare leh iyadoo la adeegsanayo nalka wadida garaaca wadnaha gaaban, sidaas darteed waxtarka wax soo saarka sare ayaa la heli karaa marka loo eego midka garaaca wadnaha dheer.

monochromator-ka laba-jibbaaran wuxuu gaaraa magdhow leexinta garaaca wadnaha
Isticmaalka hal unug oo kala duwanaansho ah oo ku jira monochromator waxay soo bandhigaysaa isbeddelkaindhahaJidka radially ee laydhka garaaca wadnaha ultra-gaaban, sidoo kale loo yaqaan garaaca hore u janjeera, taasoo keentay waqti kala bixin. Wadarta kala duwanaanshaha wakhtiga ee booska kala-duwanaanshaha leh mawjadda dhererka kala-duwanaanshaha λ ee nidaamka kala-duwanaanshaha m waa Nmλ, halkaas oo N ay tahay tirada guud ee khadadka iftiinka iftiinka. Marka lagu daro qayb labaad oo kala duwanaansho ah, garaaca hore ee garaaca wadnaha ayaa dib loo soo celin karaa, waxaana la heli karaa monochromator leh magdhow dib u dhac ah. Oo iyadoo la hagaajinayo dariiqa indhaha ee u dhexeeya labada qaybood ee monochromator, qaabeeyaha garaaca garaaca wadnaha ayaa la habeyn karaa si uu si sax ah u magdhabo kala firdhisanaanta dabiiciga ah ee shucaaca harmonic nidaamka sare. Isticmaalka naqshadaynta magdhowga wakhtiga dib u dhigista, Lucchini et al. waxay muujisay suurtogalnimada abuurista iyo muujinta ultra-gaaban monochromatic garaacyada ultraviolet xad dhaaf ah oo leh ballaca garaaca garaaca 5 fs.
Kooxda cilmi-baarista Csizmadia ee Xarunta ELE-Alps ee Xarunta Iftiinka Sare ee Yurub waxay ku guulaysteen isbeddelka spectrum iyo garaaca garaaca iftiinka ultraviolet ee ba'an iyadoo la adeegsanayo labajibbaaran oo dib-u-dhac ah oo magdhow monochromator ah oo ah soo noqnoqoshada sare ee soo noqnoqda, heerka sare ee xariiqda is-waafajinta. Waxay soo saareen haarmonics heer sare ah iyagoo isticmaalaya darawalleysarkaiyadoo lagu celcelinayo 100 kHz oo uu gaadhay ballaca garaaca wadnaha ultraviolet ba'an oo ah 4 fs. Shaqadani waxay furaysaa fursado cusub oo loogu talagalay tijaabooyinka wakhtiga lagu xalliyo ee ogaanshaha goobta ee xarunta ELI-ALPS.

Soo noqnoqoshada sare ee ilayska ultraviolet ee xad dhaafka ah ayaa si weyn loogu isticmaalay daraasadda dhaqdhaqaaqa elektarooniga ah, waxayna muujisay rajooyin ballaadhan oo laga filayo goobta attosecond spectroscopy iyo sawir-qaadista microscopic. Horumarka joogtada ah iyo hal-abuurka sayniska iyo tignoolajiyada, soo noqnoqoshada sare ee ultraviolet xad dhaaf ahil iftiin lehWaxay ku socotaa jihada soo noqnoqoshada sare, qulqulka photon-ka sare, tamarta photon sare iyo ballaca garaaca garaaca oo gaaban. Mustaqbalka, cilmi-baarista joogtada ah ee soo noqnoqoshada sare ee ilaha iftiinka ultraviolet ee ba'an waxay sii horumarin doontaa codsigooda dhaqdhaqaaqa elektiroonigga ah iyo qaybaha kale ee cilmi-baarista. Isla mar ahaantaana, hagaajinta iyo tignoolajiyada xakamaynta ee soo noqnoqoshada sare ee soo noqnoqda isha iftiinka ultraviolet ee xad dhaafka ah iyo codsigeeda farsamooyinka tijaabada ah sida xallinta angular photoelectron spectroscopy sidoo kale waxay noqon doontaa diiradda cilmi baarista mustaqbalka. Intaa waxaa dheer, tikniyoolajiyadda nuugista ku meel gaadhka ah ee waqtiga-la-xaliyay iyo tignoolajiyada sawir-qaadista ee wakhtiga-dhabta ah ee ku salaysan soo noqnoqoshada sare ee ilayska ultraviolet ee xad-dhaafka ah ayaa sidoo kale la filayaa in la sii darso, la horumariyo oo la codsado si loo gaaro saxnaanta sare ee wakhtiga-la-xalinta. iyo sawirka nanospace-xalin ee mustaqbalka.