Isi iyi ọkụ ultraviolet dị elu ugboro ugboro

Isi iyi ọkụ ultraviolet dị elu ugboro ugboro

Usoro mkpakọ mgbe emechara jikọtara ya na mpaghara agba abụọ na-emepụta isi iyi ọkụ ultraviolet dị elu.
Maka ngwa Tr-ARPES, ibelata ogologo ebili mmiri nke ọkụ ịnya ụgbọ ala na ịbawanye ohere nke ionization gas bụ ụzọ dị irè iji nweta nnukwu flux na nkwekọrịta dị elu.Na usoro nke na-amụba elu-usoro harmonics na otu-agafe elu-nkwugharị ugboro, ugboro ugboro ugboro abụọ ma ọ bụ ugboro ugboro ugboro abụọ na-anakwere isi nakweere na-amụba mmepụta arụmọrụ nke elu-order harmonics.Site n'enyemaka nke mkpakọ post-pulse, ọ dị mfe iji nweta njupụta ike kachasị achọrọ maka ọgbọ harmonic dị elu site n'iji ọkụ mbanye pulse dị mkpụmkpụ, ya mere enwere ike nweta nrụpụta mmepụta dị elu karịa nke ogologo pulse drive.

monochromator grating ugboro abụọ na-enweta ụgwọ ọrụ pulse n'ihu tilt
Ojiji nke otu ihe diffractive na monochromator na-ewebata mgbanwe nangwa anyaỤzọ na-egbuke egbuke n'ime ọkụ nke ultra-short pulse, nke a makwaara dị ka pulse forward tilt, na-ebute ogologo oge.Ngụkọta oge dị iche iche maka ntụpọ ntụgharị nwere ogologo wavelength diffraction λ na usoro diffraction m bụ Nmλ, ebe N bụ ngụkọta nke ahịrị grating ọkụ.Site n'ịgbakwụnye ihe dị iche iche nke abụọ, enwere ike iweghachi n'ihu pulse tilted, na enwere ike nweta monochromator nwere nkwụghachi ụgwọ oge.Na site n'ịgbanwe ngwa anya ụzọ n'etiti abụọ monochromator components, na grating usu shaper nwere ike ahaziri ka kpomkwem akwụ ụgwọ pụta ụwa mgbasa nke elu usoro harmonic radieshon.N'iji atụmatụ nkwụghachi ụgwọ igbu oge, Lucchini et al.gosipụtara ohere nke ịmepụta na ịkọwapụta ultra-short monochromatic oke ultraviolet pulses nwere obosara usu nke 5 fs.
Ndị otu Csizmadia na-eme nchọpụta na ELE-Alps Facility na European Extreme Light Facility nwetara ụdịdị dị iche iche na pulse modulation nke oke ọkụ ultraviolet na-eji okpukpu abụọ grating oge-egbu oge ụgwọ monochromator n'ọtụtụ ugboro ugboro ugboro, ahịrị beam nke dị elu.Ha rụpụtara harmonics dị elu site na iji mbanyelaserna nkwughachi nke 100 kHz wee nweta obosara ultraviolet obosara nke 4 fs.Ọrụ a na-emepe ohere ọhụrụ maka nnwale ndị edoziziri oge na nchọpụta ọnọdụ na akụrụngwa ELI-ALPS.

Ugboro ugboro ugboro ugboro oke ọkụ ọkụ ultraviolet ka ejirila ọtụtụ ebe n'ọmụmụ ihe gbasara ike elektrọn, ma gosipụtakwa atụmanya ngwa ngwa n'ọhịa nke attosecond spectroscopy na onyonyo onyonyo.Site na ọganihu na ihe ọhụrụ nke sayensị na teknụzụ na-aga n'ihu, ugboro ugboro dị elu ultravioletìhè isi iyina-aga n'ihu n'ụzọ nke ugboro ugboro ugboro ugboro dị elu, foton flux dị elu, ike photon dị elu na obosara pulse dị mkpụmkpụ.N'ọdịnihu, nyocha na-aga n'ihu na ugboro ugboro ugboro ugboro oke ọkụ ọkụ ultraviolet ga-akwalite ngwa ha na usoro eletrọnịkị na mpaghara nyocha ndị ọzọ.N'otu oge ahụ, njikarịcha na njikwa teknụzụ nke ugboro ugboro ugboro ugboro oke ọkụ ultraviolet na ntinye ya na usoro nnwale dị ka angular mkpebi fotoelectron spectroscopy ga-abụkwa ihe nyocha ga-eme n'ọdịnihu.Na mgbakwunye, a na-atụkwa anya na a ga-amụbawanye, mepụta ma tinye ya n'ọrụ iji nweta teknụzụ spectroscopy spectroscopy nke oge na-aga nke ọma na teknụzụ onyonyo onyonyo nke na-adabere na nkwughachi ugboro ugboro dị oke ọkụ ultraviolet. na onyonyo edoziri nanospace n'ọdịniihu.