Isi iyi ọkụ ultraviolet dị elu ugboro ugboro

Isi iyi ọkụ ultraviolet dị elu ugboro ugboro

Usoro mgbe mkpakọchara ya na ubi agba abụọ na-emepụta isi iyi ọkụ ultraviolet dị oke elu
Maka ngwa Tr-ARPES, ibelata ogologo ebili nke ìhè ịkwọ ụgbọala na ịbawanye ohere nke ionization gas bụ ụzọ dị irè isi nweta nnukwu flux na harmonics dị elu. N'ime usoro imepụta harmonics dị elu nke nwere ugboro ugboro ugboro ugboro otu-agafe, a na-eji usoro okpukpu abụọ ugboro ugboro ma ọ bụ okpukpu atọ eme ihe iji mee ka arụmọrụ mmepụta nke harmonics dị elu dịkwuo mma. Site n'enyemaka nke mkpakọ mgbe pulse gasịrị, ọ dị mfe iru njupụta ike kachasị elu achọrọ maka mmepụta harmonics dị elu site na iji obere ọkụ pulse draịva, yabụ enwere ike nweta arụmọrụ mmepụta dị elu karịa nke draịvụ pulse dị ogologo.

Monochromator okpukpu abụọ na-enweta nkwụghachi nrụgide n'ihu
Ojiji nke otu ihe diffractive na monochromator na-eme ka mgbanwe dị nangwa anyaụzọ radially n'ime okporo nke ultra-short pulse, nke a makwaara dị ka pulse tilt n'ihu, na-ebute ịgbatị oge. Ngụkọta oge dị iche maka ebe diffraction nwere ogologo ebili mmiri diffraction λ na usoro diffraction m bụ Nmλ, ebe N bụ ọnụọgụgụ niile nke ahịrị grating na-enwu enwu. Site na ịgbakwunye ihe diffractive nke abụọ, enwere ike weghachite ihu pulse a gbagọrọ agbagọ, enwere ike nweta monochromator nwere nkwụghachi oge. Site na ịgbanwe ụzọ anya dị n'etiti ihe abụọ monochromator, enwere ike ịhazi ihe nhazi pulse grating iji kwụọ ụgwọ nkesa dị n'ime nke radieshon harmonic dị elu. Site na iji nhazi nkwụghachi oge, Lucchini et al. gosipụtara ohere nke ịmepụta na ịkọwapụta ultra-short monochromatic extreme ultraviolet pulses nwere obosara pulse nke 5 fs.
Ndị otu nyocha Csizmadia na ELE-Alps Facility dị na European Extreme Light Facility nwetara spectrum na pulse modulation nke oke ultraviolet site na iji double grating treatment delay compensation monochromator na ugboro ugboro ugboro ugboro, nke nwere usoro harmonic dị elu. Ha mepụtara harmonics dị elu site na iji draịvụ.lasersite na ọnụego ugboro ugboro nke 100 kHz ma nweta oke obosara mkpali ultraviolet nke 4 fs. Ọrụ a na-emepe ohere ọhụrụ maka nnwale ndị edoziri oge na nchọpụta ọnọdụ na ebe ELI-ALPS.

A na-eji isi iyi ọkụ ultraviolet dị elu eme ihe nke ukwuu n'ọmụmụ ihe gbasara ike elektrọn, ma gosipụtakwa ohere sara mbara maka ojiji n'ọhịa nke attosecond spectroscopy na onyonyo microscopic. Site na ọganihu na mmepụta ihe ọhụrụ nke sayensị na teknụzụ, ugboro ...isi iyi ọkụna-aga n'ihu n'akụkụ nke ugboro ugboro ugboro ugboro, mmụba foton dị elu, ike foton dị elu na obosara mkpụmkpụ nke mkpali. N'ọdịnihu, nnyocha na-aga n'ihu na ugboro ugboro ugboro ugboro isi iyi ọkụ ultraviolet dị oke elu ga-akwalite ojiji ha na ike eletrọniki na ngalaba nyocha ndị ọzọ. N'otu oge ahụ, teknụzụ nhazi na njikwa nke ugboro ugboro ugboro ugboro ugboro ugboro isi iyi ọkụ ultraviolet dị oke elu na ojiji ya na usoro nnwale dịka mkpebi angular photoelectron spectroscopy ga-abụkwa isi ihe nyocha n'ọdịnihu. Na mgbakwunye, teknụzụ attosecond transient absorption spectroscopy nke edoziri oge na teknụzụ onyonyo microscopic oge dabere na ugboro ugboro ugboro ugboro ugboro ugboro ugboro isi iyi ọkụ ultraviolet dị oke elu a na-atụkwa anya na a ga-amụkwu, mepụta ma tinye ya n'ọrụ iji nweta onyonyo attosecond nke edoziri oge na nke edoziri nanospace n'ọdịnihu.