Inkqubela phambili kwi-ultraviolet egqithisileyoItekhnoloji yokukhanya
Kwiminyaka yakutshanje, imithombo ephezulu ye-uxilovic ephezulu itsalele ingqalelo ebanzi kwicandelo lemihlaba ye-elektroni ngenxa yobuthongo babo obunamandla, ubude bexesha elifutshane kunye nePiton, kwaye zisetyenzisiwe kwizifundo ezahlukeneyo ezibonakalayo. Ngokuqhubela phambili kwetekhnoloji, okuUmthombo wokukhanyaIkhula rhoqo kwi-REPTTINE CRARTUTEST, i-Photon yePhoton ye-Photon ye-Photon, iPiton ephezulu kunye ne-pullse emfutshane. Oku kuhambela phambili akukukontseza nje isisombululo semilinganiselo yemithombo yokukhanya egqithileyo ye-uTraviolet, kodwa ikwabonelela ngamathuba amatsha okuphucula ubuchwephesha bexesha elizayo. Ke ngoko, ukufundisisa okunzulu kunye nokuqonda ukuphindaphinda okuphezulu kwe-Istraquency Gualraviolet umfanekiso okhawulezayo kubaluleke kakhulu ekusebenzeni nasekufumaneni itekhnoloji yokusika.
Kwimilinganiselo ye-elektroni ye-elektroni kwi-FebtoseCond kunye ne-AttoseCond Times, inani leziganeko ezilinganiswe kwi-buam enye ihlala ingonelanga, yenza imithombo yokukhanya ephantsi engapheliyo. Kwangelo xesha, umthombo wokukhanya ophethe i-Photon ye-Photon Flux iya kuwunciphisa umyinge we-microscopic kwi-microscopic ecinga ngexesha lokuvezwa okulinganiselweyo. Ngokuhlola okuqhubekayo kunye novavanyo, abaphandi benze izinto ezininzi eziphuculweyo kumnqophiso wokuvelisa kunye noyilo lwenguqu ePhezulu lokuPhakanyiswa ngokuhamba kwexesha. Itekhnoloji yohlalutyo lweSithuba esiPhambili sidityaniswe ne-PleestTtation ephezulu ye-Ultraviolet Light Special Speciation isetyenziselwe ukufezekisa umlinganiso ophezulu wezinto ezibonakalayo kunye nenkqubo ye-elektroniki.
Ukusetyenziswa kwemithombo yokukhanya e-iltraviolet egqithileyo, enjenge-Angland iconjululwe i-Spectroscopy (i-Arpes), ifuna i-beam ye-iam ye-ultraviolet yokukhanyisela isampulu. I-electroni kumphezulu wesampulu zinemincili kwiLizwe eliqhubekayo ngokuKhanya kakhulu, kwaye amandla e-kinetic kunye ne-angile ye-kinetic kunye ne-angiseli ye-fotosi iqulethe ulwazi lwe-band. The electron analyzer with Angle resolution function receives the radiated photoelectrons and obtains the band structure near the valence band of the sample. Kwindlela yokuphindaphinda iphindwe kabini kwi-Ultraviolet I-Ultraviolet ukukhanya, kuba i-pulse yayo enye iqulethe inani elikhulu lemifanekiso ngexeshana elifutshane, kwaye ebizwa ngokuba yi-COOLMECICOORK NOBUCHULE. Ukuze unciphise impembelelo yenkqubo yentlawulo yendawo, kuyimfuneko ukunciphisa iifoto eziqulathwe kwi-pulse nganye ngelixa ugcina i-Photon Flux, ke iyimfuneko ukuqhuba ii-laserNgeempondo eziphezulu eziphezulu ukuba zivelise umthombo wokukhanya okugqithileyo kwi-ultraviolet kunye nexesha eliphezulu.
Itekhnoloji ye-PAVIDS ephuculweyo iyonke iyona isizukulwane se-odolo ye-odolo ye-MHZ
Ukuze ufumane umthombo wokukhanya okukhanyisiweyo kwe-ultraviolet enenqanaba lokuphindaphinda ukuya kuthi ga kwi-60 MHZ, iqela le-jones kwiYunivesithi yaseBritish Coluecolet ye-Ultraviolet ye-United Kingdom ye-Ultraviolet ye-United Kingdom ye-Ultraviolet (i-tr-ric). Umthombo wokukhanya uyakwazi ukuhambisa i-Photon Flux engaphezulu kwe-1011 yeenombolo ze-photon nganye nge-piton enesilinganiselo esinye se-60 MHZ kuluhlu lwamandla kwi-8 ukuya kwi-40 ev. Basebenzisa inkqubo ye-fiberbium ye-fiberlium ye-fiberlium njengomthombo wembewu ye-FSEC, kunye neempawu ezilawulwa ngenkqubo ye-laser ye-laser ye-Laser of Wilds of Erset yeVenkile yokuTshintshiselana (i-FCEO) kwaye igcina i-pulse elungileyo yokuphela kwe-Amplimier. Ukufezekisa ukuphucula iziseko zokuhlala ngaphakathi kwi-FSEC, basebenzisa i-lops ezintathu zokulawulwa kolawulo lwengxelo, okukhokelela kwiSigaba seNdawo yokuThumela i-pulsec ehambelana nemvulophu ye-pulse, okt, φceo).
Ngokusebenzisa igesi ye-krypton njengegesi yokusebenza, iqela lophando lifezekisa isizukulwane se-odolo ephezulu kwi-fsec. Benza imisebenzi ye-trpes kwimilinganiselo yegrafu kwaye baqwalasele ukuphinda baphinde baphinde baphinde baphinde babe nokuhamba kwe-elektroni engapheliyo, kunye namagama angenamgangatho ongenamgangatho ongenamgangatho u-0.6 iV. Lo mthombo wokukhanya ubonelela ngesixhobo esibalulekileyo sokufunda isakhiwo se-elektroniki sezinto ezinzima. Nangona kunjalo, isizukulwane se-odolo ephezulu kwi-FSEC ineemfuno eziphezulu kakhulu zokubonisa, imbuyekezo yokusasazwa, uhlengahlengiso oluhle lwe-cavity Kwangelo xesha, impendulo yenqanaba le-nonline yePlasma kwindawo ekugxilwe kuyo kwi-cavity ikwangumceli mngeni. Ke ngoko, okwangoku, olu hlobo lomthombo wokukhanya aluzange lube yeyona nto iphambili kwi-ultravioletUmthombo ophezulu wokukhanya.
Iposi: Apres-29 ukuya kwi-2924