Laser e khannang e fumana moeli o ka holimo oa mohloli oa leseli la laser ea attosecond

Laser e khannang e etsa qeto ea moeli o ka holimo oalaser ea attosecondmohloli oa leseli.
Hajoale,li-laser tsa pulse tsa attosecondLi hlahisoa haholo-holo ka tlhahiso ea harmonic e phahameng (HHG) e tsamaisoang ke masimo a matla. Bohlokoa ba tlhahiso ea tsona bo ka utloisisoa e le lielektrone tse fetoloang hore e be ion, tse potlakileng, le tse kopantsoeng hape ho lokolla matla, ka hona li ntša li-pulse tsa XUV tse ka tlase ho tse peli.
Ka hona, tlhahiso ea li-pulse tsa attosecond e tebile haholo ho bophara ba pulse, matla, bolelele ba maqhubu, le makhetlo a pheta-phetoang a laser e khannang: bophara bo bokhutšoanyane ba pulse bo thusa ho arola li-pulse tsa attosecond, matla a phahameng a ntlafatsa ionization le katleho, maqhubu a malelele a bophahamo a phahamisa matla a ho khaola empa a fokotsa haholo katleho ea phetoho, 'me maqhubu a phahameng a pheta-pheto a ntlafatsa karolelano ea lets'oao-ho-lerata empa a lekanyelitsoe ke matla a pulse e le 'ngoe.
Lisebelisoa tse fapaneng li shebana le matšoao a fapaneng a bohlokoa a laser ea attosecond, ka hona li tsamaisana le likhetho tsa moralo oa mefuta e fapaneng ea ho khanna.mehloli ea laser.
Bakeng sa lits'ebetso tse kang lipatlisiso tsa ultrafast dynamics le microscopy ea elektronike, ho itšehla thajana ha li-pulse tsa attosecond (IAP) hangata ho hloka li-pulse tse khannang ka nako e khuts'oane le taolo e ntle ea mokhahlelo oa enfelopo ea carrier (CEP) ho fihlella taolo e sebetsang ea nako le sebopeho sa maqhubu;
Bakeng sa liteko tse kang pompo-probe spectroscopy le multi-photon ionization, mahlaseli a matla a phahameng kapa a phahameng a attosecond a thusa ho ntlafatsa bokgoni ba ho hlasimolla/ho monya, boo hangata bo fihlellwang tlasa matla a ho kganna a phahameng le maemo a matla a mahareng a phahameng ka HHG, mme bo hloka ho boloka boleng bo amohelehang ba ho bapisa mekhahlelo le mahlasedi tlasa maemo a phahameng a ionization;
Ho hlahisa mahlaseli a attosecond fensetereng ea X-ray (e leng ea bohlokoa haholo bakeng sa ho nka litšoantšo ka mokhoa o kopaneng le spectroscopy ea ho monya X-ray e rarollotsoeng ka nako), ho khanna ha maqhubu a malelele a bohareng ba infrared hangata ho sebelisoa ho eketsa matla a ho khaola harmonic le ho fumana tšireletso e phahameng ea matla a photon;
Litekanyong tse nang le kutlwisiso e tebileng mabapi le ho nepahala ha lipalo-palo, joalo ka ho bala le ho shebella ka photoelectron spectroscopy, maqhubu a phahameng a ho pheta-pheta a ka ntlafatsa haholo karolelano ea lets'oao-lerata le katleho ea ho fumana data, ha tjhaja/matla a tlase a pulse ea single-pulse a thusa ho fokotsa moeli oa litlamorao tsa tjhaja ea sebaka qetong ea spectrum ea matla.
Kamano pakeng tsa diparamitha tsa laser tse kgannang, dibopeho tsa laser ya pulse ya attosecond, le ditlhoko tsa tshebediso e bontshitswe ho Setshwantsho sa 1. Ka kakaretso, ditlhoko tsa tshebediso di tswela pele ho kganna ntlafatso e eketsehileng ya diparamitha tsa laser ya pulse ya attosecond, mme ka hona di kganna ntshetsopele e tswelang pele ya meralo le mahlale a bohlokwa alaser e potlakileng hahololitsamaiso.