Umuvuduko mwinshi ukabije ultraviolet isoko yumucyo

Umuvuduko mwinshi ukabije ultraviolet isoko yumucyo

Nyuma ya compression tekinike ihujwe namabara abiri yibibara bitanga urumuri rwinshi cyane ultraviolet yumucyo
Kubikorwa bya Tr-ARPES, kugabanya uburebure bwumucyo wo gutwara no kongera amahirwe yo kuba ionisiyoneri nuburyo bwiza bwo kubona ibintu byinshi kandi bihuza neza. Muburyo bwo kubyara ibyiciro bihanitse hamwe na pass-imwe-isubiramo inshuro nyinshi, uburyo bwo gukuba inshuro ebyiri cyangwa inshuro eshatu uburyo bukoreshwa muburyo bwo kongera umusaruro mubikorwa bihanitse. Hamwe nubufasha bwa compression nyuma ya pulse, biroroshye kugera kumurongo wimbaraga zingana zisabwa kugirango habeho urwego rwo hejuru rwuzuzanya ukoresheje urumuri rugufi rwo gutwara ibinyabiziga, bityo umusaruro mwinshi urashobora kuboneka kuruta uw'imodoka ndende.

Double grarating monochromator igera kuri pulse imbere indishyi
Gukoresha ikintu kimwe gitandukanya muri monochromator itangiza impinduka murioptiqueinzira mu buryo butangaje mumirasire ya ultra-ngufi ya pulse, izwi kandi nka pulse imbere ihengamye, bivamo umwanya urambuye. Itandukaniro ryigihe cyose kubitandukanya hamwe nuburebure bwumurambararo λ kumurongo wo gutandukanya m ni Nmλ, aho N numubare rusange wumurongo wo kumurika. Mugushyiramo ikintu cya kabiri gitandukanya, impinduramatwara imbere irashobora kugarurwa, kandi monochromator hamwe nindishyi zitinda zishobora kuboneka. Kandi muguhindura inzira ya optique hagati yibice bibiri bya monochromator, shitingi ya pulse shapper irashobora guhindurwa kugirango yishyure neza ikwirakwizwa ryimiterere yimirasire ihanitse. Ukoresheje igishushanyo mbonera cyindishyi, Lucchini nibindi. yerekanye amahirwe yo kubyara no kuranga ultra-bigufi monochromatic ultraviolet pulses ifite ubugari bwa 5 fs.
Itsinda ry’ubushakashatsi bwa Csizmadia mu kigo cya ELE-Alps mu kigo cy’iburayi gikabije cy’umucyo cyageze ku mucyo no guhinduranya impanuka y’umucyo ukabije wa ultraviolet ukoresheje inshuro ebyiri zo gutinda igihe cyo gutinda indishyi monochromator mu nshuro nyinshi zisubiramo, umurongo wo hejuru uhuza umurongo. Bakoze ibyateganijwe bihanitse bakoresheje disikilaserhamwe nigipimo cyo gusubiramo 100 kHz kandi cyageze kuri ultraviolet pulse ikabije ya 4 fs. Aka kazi gafungura uburyo bushya kubushakashatsi bwakemuwe mugihe cyo kumenya aho ELI-ALPS igeze.

Isubiramo ryinshi inshuro nyinshi ultraviolet yumucyo wakoreshejwe cyane mukwiga imbaraga za electron, kandi yerekanye uburyo bwagutse bwo gukoresha murwego rwa attosecond spectroscopy na microscopique. Hamwe niterambere ridahwema no guhanga udushya siyanse nubuhanga, inshuro nyinshi zisubiramo ultraviolet ikabijeisoko yumucyoni gutera imbere mu cyerekezo cyo gusubiramo inshuro nyinshi, fotone yo hejuru, ingufu za fotone nini n'ubugari bugufi. Mu bihe biri imbere, gukomeza ubushakashatsi kubyerekeranye no gusubiramo inshuro nyinshi cyane ultraviolet yumucyo bizakomeza guteza imbere ikoreshwa ryabyo mubikorwa bya elegitoroniki no mubindi bice byubushakashatsi. Muri icyo gihe, uburyo bwiza bwo kugenzura no kugenzura tekinoroji yo gusubiramo inshuro nyinshi cyane ultraviolet yumucyo ukomoka hamwe no kuyikoresha muburyo bwa tekinike yubushakashatsi nka angular resolution photoelectron spectroscopy nayo izibandwaho mubushakashatsi buzaza. Byongeye kandi, tekinoroji ikemurwa na attosecond transient absorption spekitroscopi hamwe na tekinoroji ya microscopique yerekana amashusho ashingiye kumurongo wo gusubiramo inshuro nyinshi cyane ultraviolet yumucyo nabwo biteganijwe ko izakomeza kwigwa, gutezwa imbere no gushyirwa mubikorwa kugirango igere kuri attosecond yuzuye neza. na nanospace-byakemuwe amashusho mugihe kizaza.