ʻO ka ʻenehana a me ka hoʻomohala ʻana o nā lasers attosecond ma Kina

ʻO ka ʻenehana a me ka hoʻomohala ʻana o nā lasers attosecond ma Kina

Ua hōʻike ka Institute of Physics, Chinese Academy of Science, i nā hopena ana o 160 e like me nā pulses attosecond i hoʻokaʻawale ʻia i ka makahiki 2013. Ua hoʻokumu ʻia nā pulses attosecond isolated (IAPs) o kēia hui noiʻi ma muli o nā harmonics kiʻekiʻe i alakaʻi ʻia e sub-5 femtosecond laser pulses i hoʻopaʻa ʻia e CEP, me ka helu repetition o 1 kHz. ʻO nā hiʻohiʻona kino o nā pulse attosecond i hōʻike ʻia e ka attosecond stretch spectroscopy. Hōʻike nā hopena e hiki i kēia beamline ke hāʻawi i nā pulses attosecond kaʻawale me ka lōʻihi o ka pulse o 160 attoseconds a me ka nalu waena o 82eV. Ua hana ka hui i nā holomua ma ka hana kumu attosecond a me ka ʻenehana spectroscopy stretching attosecond. ʻO nā kumu kukui ultraviolet ʻoi loa me ka hoʻonā attosecond e wehe pū i nā kahua noi hou no ka physics mea condensed. I ka makahiki 2018, ua hōʻike pū ka Institute of Physics, Chinese Academy of Science, i kahi hoʻolālā kūkulu ʻana no kahi mea hoʻohana hoʻohana ultrafast i hoʻoholo ʻia e hoʻoponopono i ka manawa e hui pū ai i nā kumu kukui attosecond me nā ʻano ʻokoʻa. ʻO kēia ka mea e hiki ai i nā mea noiʻi ke hana i ka attosecond maʻalahi a i ka femtosecond i hoʻoholo ʻia i ka manawa o nā kaʻina ultrafast i loko o ka mea, me ka loaʻa ʻana o ka manawa a me ka hoʻonā spatial. A hiki i ka poʻe noiʻi ke ʻimi a mālama i ka microscopic ultrafast electronic dynamics i nā ʻātoma, nā molekala, nā ʻili a me nā mea paʻa nui. ʻO kēia ka mea e loaʻa ai ke ala no ka hoʻomaopopo ʻana a me ka hoʻohana ʻana i nā ʻano macroscopic kūpono e uhi ana i nā ʻano noiʻi like ʻole e like me ka physics, chemistry a me ka biology.

I ka makahiki 2020, ua noi ʻo Huazhong University of Science and Technology i ka hoʻohana ʻana i kahi ala-optical a pau e ana pono a kūkulu hou i nā pulses attosecond ma o ka ʻenehana optical gating i hoʻoholo ʻia. I ka makahiki 2020, ua hōʻike pū ka Chinese Academy of Sciences ua hoʻopuka maikaʻi ʻo ia i nā pulses attosecond kaʻawale ma o ka hoʻohua ʻana i ka femtosecond pulse photoelectric field ma o ka hoʻohana ʻana i ka ʻenehana koho pass-gate ʻelua māmā. I ka makahiki 2023, ua hāʻawi aku kahi hui mai National University of Defense Technology i kahi kaʻina PROOF wikiwiki, i kapa ʻia ʻo qPROOF, no ke ʻano o ka ultra-wideband isolated attosecond pulses.

I ka makahiki 2025, ua hoʻomohala nā mea noiʻi mai ka Chinese Academy of Sciences ma Shanghai i ka ʻenehana synchronization laser e pili ana i kahi ʻōnaehana hoʻonohonoho manawa kūʻokoʻa i kūkulu ʻia, e hiki ai i ke ana jitter manawa kiʻekiʻe a me nā pane manawa maoli o nā laser picosecond. ʻAʻole wale kēia i hoʻomalu i ka manawa jitter o ka ʻōnaehana i loko o ka pae attosecond akā ua hoʻonui pū i ka hilinaʻi o ka ʻōnaehana laser i ka wā lōʻihi. Hiki i ka ʻōnaehana hoʻomohala a me ka ʻōnaehana hoʻokele ke hana i ka hoʻoponopono manawa maoli no ka jitter manawa. I kēlā makahiki hoʻokahi, ua hoʻohana pū nā mea noiʻi i nā lasers relativistic intensity spacetime vortices (STOV) e hoʻohua i nā puʻupuʻu gamma-ray kaʻawale attosecond e lawe ana i ka momentum angular orbital lateral.

Aia ke kahua o nā lasers attosecond i kahi manawa o ka ulu wikiwiki ʻana, e uhi ana i nā ʻano he nui mai ka noiʻi kumu a hiki i ka hoʻolaha noi. Ma o nā hana a nā hui noiʻi ʻepekema, ke kūkulu ʻana i nā ʻōnaehana, ke kākoʻo o nā kulekele aupuni, a me ka hui ʻana a me ka hoʻololi ʻana o ka home a me ka honua, ʻo ka hoʻolālā ʻana o Kina i ke kahua o nā lasers attosecond e hauʻoli i nā kūlana hoʻomohala ākea. I ka hui hou ʻana o nā kulanui a me nā ʻoihana noiʻi i ka noiʻi ʻana i nā lasers attosecond, e hoʻoulu ʻia kahi pūʻulu o nā kālena noiʻi ʻepekema me kahi hiʻohiʻona honua a me nā mana hou, e hāpai ana i ka hoʻomohala mau ʻana o ka ʻepekema attosecond. Na ka National Attosecond ʻepekema nui e hāʻawi i kahi kahua noiʻi alakaʻi no ke kaiāulu ʻepekema a hāʻawi i nā kōkua nui i ka holomua o ka ʻepekema a me ka ʻenehana.