Usoro teknụzụ na mmepe nke lasers attosecond na China

Usoro teknụzụ na mmepe nkelasers attosecondna Chaịna

Ụlọ Ọrụ Na-ahụ Maka Fizik, Ụlọ Akwụkwọ Sayensị nke China, kọrọ nsonaazụ nha nke 160 dị ka pulse attosecond nkewapụrụ na 2013. E mepụtara pulse attosecond nkewapụrụ (IAPs) nke otu nnyocha a dabere na harmonics dị elu nke pulse laser femtosecond sub-5 nke CEP kwadoro, yana ọnụego ugboro ugboro nke 1 kHz. E ji attosecond stretch spectroscopy mara njirimara oge nke pulse attosecond. Nsonaazụ ya na-egosi na beamline a nwere ike inye pulse attosecond nkewapụrụ na oge pulse nke 160 attosecond na ebili mmiri etiti nke 82eV. Ndị otu ahụ emeela ihe ịga nke ọma na mmepụta isi mmalite attosecond na teknụzụ spectroscopy stretch attosecond. Isi mmalite ọkụ ultraviolet dị oke njọ nwere mkpebi attosecond ga-emepekwa ubi ngwa ọhụrụ maka physics ihe a na-ejikọta ọnụ. Na 2018, Institute of Physics, Chinese Academy of Sciences, kọkwara atụmatụ owuwu maka ngwaọrụ onye ọrụ nha nkewa-oge-ọsọ ọsọ nke na-ejikọta isi mmalite ìhè attosecond na ọdụ nha dị iche iche. Nke a ga-enyere ndị nchọpụta aka ime nha nhazi oge attosecond ruo femtosecond nke usoro ultrafast na ihe, ebe ha nwekwara ike inwe ọsọ na mkpebi oghere. Ọ na-enyekwa ndị nchọpụta ohere inyocha ma chịkwaa usoro eletrọniki ultrafast dị na atọm, molekul, elu na ihe siri ike buru ibu. Nke a ga-emecha mee ka ụzọ dị mfe maka nghọta na itinye ihe omume macroscopic dị mkpa na-ekpuchi ọtụtụ ngalaba nyocha dị ka physics, kemistri na bayoloji.

Na 2020, Mahadum Sayensị na Teknụzụ nke Huazhong tụrụ aro ka e jiri ụzọ a na-ahụ anya niile tụọ ma wughachi pulse attosecond nke ọma site na teknụzụ gate optical nke edoziri ugboro ugboro. Na 2020, Ụlọ Akwụkwọ Sayensị nke China kọkwara na ha emepụtala pulse attosecond nkewapụrụ iche site n'ịkpụzi field fotoelectric femtosecond site na iji teknụzụ pass-gate nhọrọ abụọ-light. Na 2023, otu ndị otu sitere na National University of Defense Technology tụrụ aro usoro PROOF ngwa ngwa, nke a na-akpọ qPROF, maka njirimara nke ultra-wideband attosecond pulse.

Na 2025, ndị nchọpụta si na Chinese Academy of Sciences dị na Shanghai mepụtaralaserteknụzụ mmekọrịta dabere na sistemụ nhazi oge ejiri aka rụọ, na-enye ohere ka nha jitter oge dị elu na nzaghachi oge nke picosecond lasers. Nke a abụghị naanị na ọ na-achịkwa jitter oge sistemụ ahụ n'ime oke attosecond kamakwa ọ na-eme ka ntụkwasị obi nkesistemụ lasern'oge ọrụ ogologo oge. Sistemụ nyocha na njikwa emepụtara nwere ike ime nrụzi oge n'ezie maka jitter oge. N'otu afọ ahụ, ndị nchọpụta jikwa laser relativistic intensity spacetime vortices (STOV) iji mepụta pulses gamma-ray attosecond nke na-ebu momentum angular lateral orbital.

Ubi nke attosecond lasers nọ n'oge mmepe ngwa ngwa, na-ekpuchi ọtụtụ akụkụ site na nyocha bụ isi ruo na nkwalite ngwa. Site na mbọ nke ndị otu nyocha sayensị, owuwu akụrụngwa, nkwado nke amụma mba, na mmekorita na mgbanwe obodo na mba ụwa, nhazi China n'ọhịa nke attosecond lasers ga-enwe atụmanya mmepe sara mbara. Ka ọtụtụ mahadum na ụlọ ọrụ nyocha na-esonye na nyocha na attosecond lasers, a ga-azụlite otu ndị nwere nkà nyocha sayensị nwere echiche mba ụwa na ikike ọhụrụ, na-akwalite mmepe na-adịgide adịgide nke sayensị attosecond. Ụlọ ọrụ sayensị Attosecond dị mkpa nke mba ahụ ga-enyekwa ikpo okwu nyocha kachasị elu maka obodo sayensị ma nye aka na mmepe nke sayensị na teknụzụ.