Pūtake mārama ultraviolet tino auau teitei

Pūtake mārama ultraviolet tino auau teitei

Ko ngā tikanga whai muri i te kōpeketanga me ngā āpure tae-rua ka puta he pūtake mārama ultraviolet tino rere nui.
Mō ngā tono Tr-ARPES, ko te whakaiti i te roanga ngaru o te mārama taraiwa me te whakanui ake i te tūponotanga o te ionization hau he huarahi whai hua hei whiwhi i ngā haunga rere teitei me ngā haunga ota teitei. I roto i te tukanga whakaputa haunga ota-teitei me te auau auau-teitei kotahi-haerenga, ko te tikanga takirua auau, takirua toru rānei te mea matua hei whakanui ake i te whai huatanga whakaputa o ngā haunga ota-teitei. Mā te āwhina o te pēhitanga muri-pā, he māmā ake te whakatutuki i te mātotoru mana tihi e hiahiatia ana mō te whakaputa haunga ota teitei mā te whakamahi i te mārama puku pā poto ake, kia taea ai te whiwhi i te whai huatanga whakaputa teitei ake i te puku pā roa ake.

Ka tutuki i te monochromator whatu takirua te utu whakatītaha whakamua o te pātere
Mā te whakamahi i tētahi huānga wehewehe kotahi i roto i te monochromator ka puta he huringa nui.whatuara radial i roto i te hihi o te pāorooro poto rawa, e mōhiotia ana ko te whakatītaha whakamua o te pāorooro, ka hua ake he totoro wā. Ko te rerekētanga wā katoa mō te wāhi whakatītaha me te roangaru whakatītaha λ i te raupapa whakatītaha m ko Nmλ, ko N te tapeke o ngā rārangi whatu whakamārama. Mā te tāpiri i tētahi atu huānga whakatītaha, ka taea te whakahoki mai i te mua pāorooro kua whakatītaha, ā, ka taea te whiwhi i tētahi monochromator me te utu whakaroa wā. Ā, mā te whakarerekē i te ara whatu i waenga i ngā wāhanga monochromator e rua, ka taea te whakarite i te kaiwhakaahua pāorooro kia tika ai te utu i te marara ā-roto o te irahiko harmonic ota teitei. Mā te whakamahi i tētahi hoahoa utu whakaroa wā, i whakaatu a Lucchini me ētahi atu i te āheinga ki te whakaputa me te whakaahua i ngā pāorooro ultraviolet tino poto kotahi me te whānui pāorooro o te 5 fs.
I tutuki i te tīma rangahau Csizmadia i te Whare ELE-Alps i te Whare Marama Tino Nui o Ūropi te whakaōrite i te whānuitanga me te pāorooro o te mārama ultraviolet tino nui mā te whakamahi i te monochromator utu whakaroa-wā rua i roto i te aho hihi harmonic teitei-auau, teitei-ōrite. I hangaia e rātou ngā harmonic teitei-ōrite mā te whakamahi i te pukurēserime te tere tāruarua o te 100 kHz, ā, i tutuki te whānui o te pāoro ultraviolet tino nui o te 4 fs. Ka huakina e tēnei mahi ngā huarahi hou mō ngā whakamātautau kua whakatauhia i te wā ki te kimi i roto i te whare ELI-ALPS.

Kua whānuitia te whakamahinga o te pūtake mārama ultraviolet tino auau auau auau i roto i te rangahau i ngā hihiri irahiko, ā, kua whakaatuhia he whānuitanga o ngā tono i roto i te mara o te tirotiro attosecond me te whakaahua moroiti. I te haere tonu o te whanaketanga me te auahatanga o te pūtaiao me te hangarau, kua piki ake te auau auau auau auau teitei i roto i te ultraviolet tino auau.pūtake māramaKei te ahu whakamua te huarahi ki te auau auau teitei ake, te rere o te photon teitei ake, te kaha photon teitei ake me te whānui poto ake o te pāorooro. I ngā rā kei te heke mai, ka whakatairangahia ake e te rangahau tonu mō ngā pūtake mārama ultraviolet tino auau auau teitei me te tino kaha o tā rātou tono i roto i ngā mahi hiko me ētahi atu mara rangahau. I taua wā anō, ko te arotau me te hangarau whakahaere o te pūtake mārama ultraviolet tino auau auau teitei me tana tono i roto i ngā tikanga whakamātautau pēnei i te irahiko whakaahua taumira koki ka waiho hei arotahi o ngā rangahau ā muri ake nei. Hei tāpiri, ko te hangarau irahiko mimiti wā-taurite attosecond me te hangarau whakaahua moroiti wā-tūturu e ahu mai ana i te pūtake mārama ultraviolet tino auau auau teitei e tika ana kia akohia, kia whakawhanakehia, kia whakamahia hoki kia tutuki ai te whakaahua irahiko wā-taurite attosecond me te irahiko nano-wāhi teitei ā muri ake nei.