I-laser eqhubayo imisela umda ophezulu womthombo wokukhanya we-attosecond laser

I-laser eqhubayo imisela umda ophezulu wei-laser ye-attosecondumthombo wokukhanya.
Ngoku,iileyiza ze-attosecond pulseZiveliswa ikakhulu ngokusebenzisa i-high-order harmonic generation (HHG) eqhutywa ziintsimi eziqinileyo. Umongo wokuveliswa kwazo unokuqondwa njengee-electron ezifakwa kwi-ionized, ezikhawuleziswayo, neziphinda zihlanganiswe ukuze zikhuphe amandla, ngaloo ndlela zikhupha ii-attosecond XUV pulses.
Ngoko ke, imveliso yee-attosecond pulses inovelwano kakhulu kububanzi be-pulse, amandla, ubude be-wavelength, kunye nokuphindaphinda kwe-laser eqhubayo: ububanzi be-pulse obufutshane bunceda ekuhlukaniseni ii-attosecond pulses, amandla aphezulu aphucula i-ionization kunye nokusebenza kakuhle, ubude be-wavelength buphakamisa amandla okusika kodwa bunciphisa kakhulu ukusebenza kokuguqulwa, kwaye ubude be-repetition obuphezulu buphucula umlinganiselo wesignali-kwingxolo kodwa buthintelwa ngamandla e-single-pulse.
Izicelo ezahlukeneyo zigxila kwizalathisi eziphambili ezahlukeneyo ze-attosecond lasers, ngaloo ndlela zihambelana nokukhetha koyilo lweentlobo ezahlukeneyo zokuqhuba.imithombo yeleza.
Kwizicelo ezinje ngophando lwe-ultrafast dynamics kunye ne-electron microscopy, ukuhlukaniswa okuzinzileyo kwee-attosecond pulses (IAP) kudla ngokufuna ii-short-pulse driving pulses kunye nolawulo oluhle lwe-carrier envelope phase (CEP) ukuze kufezekiswe ukugada kwexesha okusebenzayo kunye nokulawulwa kwe-waveform;
Kwizilingo ezifana ne-pump-probe spectroscopy kunye ne-multi-photon ionization, i-high-energy okanye i-high-flux attosecond radiation inceda ukuphucula ukusebenza kakuhle kwe-accitation/absorption, okuhlala kufezekiswa phantsi kwamandla aphezulu okuqhuba kunye neemeko zamandla aphezulu aphakathi nge-HHG, kwaye kufuna ukuba kugcinwe umgangatho owamkelekileyo we-phase matching kunye ne-beam phantsi kweemeko eziphezulu ze-ionization;
Ukuvelisa imitha ye-attosecond kwifestile ye-X-ray (ebaluleke kakhulu kwimifanekiso ehambelanayo kunye ne-X-ray absorption spectroscopy exazululwe ngexesha), ukuqhuba kwe-mid-infrared long-wavelength kudla ngokusetyenziswa ukwandisa amandla okusika i-harmonic kunye nokufumana amandla aphezulu e-photon;
Kwimilinganiselo ejongene nokuchaneka kwezibalo, njengokubala kunye ne-photoelectron spectroscopy, amaza aphezulu okuphindaphinda anokuphucula kakhulu umlinganiselo wesignali-kwingxolo kunye nokusebenza kakuhle kokufunyanwa kwedatha, ngelixa itshaja/amandla aphantsi e-single-pulse kunceda ukunciphisa umda weziphumo zetshaja yendawo kwisisombululo se-energy spectrum.
Ukuhambelana phakathi kweeparamitha zelaser yokuqhuba, iimpawu zelaser ye-attosecond pulse, kunye neemfuno zesicelo kuboniswe kuMfanekiso 1. Ngokubanzi, iimfuno zezicelo zihlala ziqhuba uphuculo oluqhubekayo lweeparamitha zelaser ye-attosecond pulse, kwaye ngaloo ndlela ziqhuba uphuhliso oluqhubekayo loyilo kunye neetekhnoloji eziphambili zei-laser ekhawulezayo kakhuluiinkqubo.