ʻO nā mea ʻike maka ʻole honua
E pili ana nā mea ʻike o Magneto i nā mea hana ʻike optical me nā hopena optical magneto i ka ultraviolet a i nā kaula infrared. He ʻano mea hou o ka ʻike ʻike optical mea hiki ke hana ʻia i nā mea optical me nā hana like ʻole ma o ka hoʻohana ʻana i kā lākou mau waiwai magneto optical a me ka pilina a me ka hoʻololi ʻana o ka māmā, ka uila, a me ka magnetism. E like me nā modulators, isolators, circulators, magneto-optical switch, deflectors, phase shifters, optical information processors, displays, memories, laser gyro bias mirrors, magnetometers, magneto-optical sensors, mīkini paʻi, video recorders, pattern recognition machines, optical discs. , nā alakaʻi nalu optical, etc.
Ke Puna o Rare Earth Magneto Optics
ʻO kaʻeleʻele honua laha ʻolehoʻopuka i kahi manawa magnetic i hoʻoponopono ʻole ʻia ma muli o ka papa electron 4f i hoʻopiha ʻole ʻia, ʻo ia ke kumu o ka magnetism ikaika; I ka manawa like, hiki iā ia ke alakaʻi i nā hoʻololi electron, ʻo ia ke kumu o ka excitation māmā, e alakaʻi ana i nā hopena optical magneto ikaika.
ʻAʻole hōʻike nā metala honua maʻemaʻe i nā hopena magneto optical ikaika. I ka wā wale nō e hoʻopili ʻia ai nā mea o ka honua laha ʻole i loko o nā mea ʻike maka e like me ke aniani, nā kristal hui, a me nā kiʻi ʻoniʻoni, e ʻike ʻia ka hopena magneto-optical ikaika o nā mea honua. ʻO nā mea magneto-optical maʻamau i hoʻohana ʻia he mau mea hui hoʻololi e like me (REBi) 3 (FeA) 5O12 garnet crystals (mea metala e like me A1, Ga, Sc, Ge, In), RETM amorphous films (Fe, Co, Ni, Mn ), a me nā aniani honua rare.
ʻO ke aniani ʻōpika magneto
ʻO nā kristal optic Magneto he mau mea aniani me nā hopena magneto optic. ʻO ka hopena magneto-optical pili loa i ka magnetism o nā mea aniani, ʻoi aku ka ikaika o ka magnetization o nā mea. No laila, ʻo kekahi mau mea magnetic maikaʻi loa he mau mea magneto-optical me nā waiwai magneto-optical maikaʻi loa, e like me ka yttrium iron garnet a me nā crystals garnet hao honua. Ma ka ʻōlelo maʻamau, ʻo nā kristal me nā waiwai magneto-optical ʻoi aku ka ferromagnetic a me ka ferrimagnetic crystals, e like me EuO a me EuS he ferromagnets, yttrium iron garnet a me bismuth doped rare earth iron garnet he ferrimagnets. I kēia manawa, hoʻohana nui ʻia kēia mau ʻano kristal ʻelua, ʻoi aku ka nui o nā kristal magnetic ferrous.
ʻO nā mea magneto-optical mea hao kakaʻikahi
1. Nā hiʻohiʻona o ka honua kakaʻikahi iron garnet magneto-optical mea
ʻO nā mea ferrite ʻano Garnet kahi ʻano mea magnetic hou i ulu wikiwiki i kēia manawa. ʻO ka mea nui loa o ia mau mea, ʻo ia ka laha hao honua (i ʻike ʻia ʻo ka magnetic garnet), i kapa ʻia ʻo RE3Fe2Fe3O12 (hiki ke hoʻopau ʻia ʻo RE3Fe5O12), kahi RE he yttrium ion (ua hoʻopaʻa ʻia kekahi me Ca, Bi plasma), Fe. Hiki ke hoʻololi ʻia nā ion ma Fe2 e In, Se, Cr plasma, a me nā Fe i loko o Fe hiki ke pani ʻia e A, Ga plasma. He 11 ka nui o nā ʻano ʻano ʻano ʻano ʻano hao ʻano ʻē aʻe i hana ʻia a hiki i kēia manawa, me ka mea maʻamau ʻo Y3Fe5O12, i hoʻopau ʻia ʻo YIG.
2. Yttrium hao garnet magneto-optical mea
Ua ʻike mua ʻia ʻo Yttrium iron garnet (YIG) e Bell Corporation i ka makahiki 1956 ma ke ʻano he aniani hoʻokahi me nā hopena magneto-optical ikaika. ʻO Magnetized yttrium iron garnet (YIG) loaʻa ka pohō magnetic i kekahi mau kauoha o ka nui ma lalo o nā ferrite ʻē aʻe i ka mahina ultra-high frequency, e hoʻohana nui ʻia ia ma ke ʻano he mea mālama ʻike.
3. High Doped Bi Series Rare Earth Iron Garnet Magneto Optical Materials
Me ka hoʻomohala ʻana o ka ʻenehana kamaʻilio optical, ua hoʻonui ʻia nā koi no ka maikaʻi o ka hoʻouna ʻana i ka ʻike a me ka hiki. Mai ka hiʻohiʻona o ka noiʻi waiwai, pono ia e hoʻomaikaʻi i ka hana o nā mea magneto-optical e like me ke kumu o nā mea hoʻokaʻawale, no laila ʻo kā lākou Faraday rotation he liʻiliʻi liʻiliʻi liʻiliʻi a me ka lōʻihi o ka nalu nui, i mea e hoʻomaikaʻi ai i ke kūpaʻa o ka hoʻokaʻawale ʻana i nā mea. hoʻololi ka mahana a me ka lōʻihi nalu. High doped Bi ion series rare earth iron garnet single crystals a me nā kiʻiʻoniʻoni lahilahi i lilo i kumu o ka noiʻi.
ʻO Bi3Fe5O12 (BiG) ke kiʻi ʻoniʻoni ʻoniʻoni hoʻokahi e lawe mai i ka manaolana no ka hoʻomohala ʻana i nā mea hoʻokaʻawale magneto optical liʻiliʻi. Ma 1988, T Kouda et al. loaʻa iā Bi3FesO12 (BiIG) nā kiʻiʻoniʻoni lahilahi aniani hoʻokahi no ka manawa mua me ka hoʻohana ʻana i ke ʻano hoʻoheheʻe plasma reactive RIBS (rection lon bean sputtering). Ma hope mai, ua loaʻa maikaʻi iā ʻAmelika Hui Pū ʻIa, Iapana, Farani, a me nā mea ʻē aʻe ʻo Bi3Fe5O12 a me Bi doped rare earth iron garnet magneto-optical films me ka hoʻohana ʻana i nā ʻano hana like ʻole.
4. Ce doped rare honua hao garnet magneto-optical mea
Hoʻohālikelike ʻia me nā mea hoʻohana maʻamau e like me YIG a me GdBiIG, ʻo Ce doped rare earth iron garnet (Ce: YIG) nā hiʻohiʻona o ka nui Faraday rotation angle, coefficient wela haʻahaʻa, haʻahaʻa absorption, a me ke kumu kūʻai haʻahaʻa. I kēia manawa ʻo ia ke ʻano hou o Faraday rotation magneto-optical material.
Hoʻohana ʻana i nā mea ʻike maka o ka honua Rare Magneto
Loaʻa i nā mea aniani kilokilo Magneto ka hopena Faraday maʻemaʻe nui, ka helu haʻahaʻa haʻahaʻa i nā lōʻihi hawewe, a me ka magnetization kiʻekiʻe a me ka permeability. Hoʻohana nui ʻia i ka hana ʻana i nā mea hoʻokaʻawale optical, nā ʻāpana ʻokoʻa ʻole, ka hoʻomanaʻo optical magneto a me nā modulators optical magneto, ke kamaʻilio fiber optic a me nā mea hoʻohui i hoʻohui ʻia, ka mālama kamepiula, ka hana logic a me nā hana hoʻouna, nā hōʻike magneto optical, ka hoʻopaʻa ʻana i ka magneto optical, nā polokalamu microwave hou. , laser gyroscopes, etc. Me ka loaʻa mau ʻana o nā mea aniani magneto-optical, e hoʻonui ʻia ka laulā o nā mea hiki ke hoʻohana ʻia a hana ʻia.
(1) Mea hoʻokaʻawale Optical
I loko o nā ʻōnaehana optical e like me ke kamaʻilio fiber optic, aia ka mālamalama e hoʻi i ke kumu laser ma muli o ka hoʻohālikelike ʻana o nā ʻāpana like ʻole i ke ala optical. Ke hana nei kēia kukui i ka ikaika o ka māmā o ke kumu laser i paʻa ʻole, e hoʻoulu ai i ka walaʻau optical, a me ka palena nui i ka hiki ke hoʻouna a me ka mamao o ke kamaʻilio ʻana o nā hōʻailona ma ke kamaʻilio fiber optic, e hana ʻole ai ka ʻōnaehana optical i ka hana. ʻO kahi mea hoʻokaʻawale optical kahi mea ʻike passive e ʻae wale i ke kukui unidirectional e hele i loko, a ua hoʻokumu ʻia kāna kumu hana ma ka ʻole o ka hoʻololi ʻana o Faraday. Hiki ke hoʻokaʻawale maikaʻi ʻia ke kukui i ʻike ʻia ma o nā leo fiber optic e nā mea hoʻokaʻawale optical.
(2) Mea ho'āʻo optic optic o kēia manawa
ʻO ka hoʻomohala wikiwiki ʻana o ka ʻoihana hou i hoʻopuka i nā koi kiʻekiʻe no ka hoʻouna ʻana a me ka ʻike ʻana i nā pahu mana, a ʻo nā ala kiʻekiʻe kiʻekiʻe a me nā ana kiʻekiʻe o kēia manawa e kū i nā pilikia koʻikoʻi. Me ka hoʻomohala ʻana o ka ʻenehana fiber optic a me ka ʻepekema waiwai, ua loaʻa i nā mea hōʻike magneto-optical i kēia manawa ka manaʻo nui ma muli o kā lākou insulation maikaʻi loa a me nā mana anti-interference, kiʻekiʻe ke ana pololei, maʻalahi miniaturization, a ʻaʻohe pōʻino pahū.
(3) Mea uila uila
Loaʻa iā YIG nā hiʻohiʻona o ka laina ferromagnetic resonance liʻiliʻi, ka hoʻolālā paʻa, ke kūpaʻa maikaʻi o ka mahana, a me ka liʻiliʻi liʻiliʻi o ka nalowale electromagnetic i nā alapine kiʻekiʻe. Hiki i kēia mau hiʻohiʻona ke kūpono no ka hana ʻana i nā ʻenehana microwave like ʻole e like me nā synthesizers kiʻekiʻe, nā kānana bandpass, oscillators, AD tuning drivers, etc. Eia kekahi, hiki ke hana ʻia nā kristal magneto-optical i nā mea hana magneto-optical e like me nā mea hoʻokani apo a me nā hōʻike magneto-optical.
(4) Hoʻomanaʻo ʻo Magneto optical
I ka ʻenehana hana ʻike, hoʻohana ʻia ka media magneto-optical no ka hoʻopaʻa ʻana a me ka mālama ʻana i ka ʻike. ʻO Magneto Optical Storage ke alakaʻi i ka mālama ʻana i ka optical, me nā hiʻohiʻona o ka mana nui a me ka hoʻololi manuahi ʻana o ka waihona optical, a me nā pōmaikaʻi o ke kākau hou ʻana o ka waihona magnetic a me ka wikiwiki o ka loaʻa ʻana e like me ka magnetic hard drive. ʻO ka lakio hoʻokō kumukūʻai ke kī inā hiki i nā disks optical magneto ke alakaʻi i ke ala.
(5) TG aniani hoʻokahi
ʻO TGG kahi aniani i hoʻomohala ʻia e Fujian Fujing Technology Co., Ltd. (CASTECH) i ka makahiki 2008. ʻO kāna mau pono nui: TGG hoʻokahi aniani ka nui magneto-optical mau, kiʻekiʻe thermal conductivity, haʻahaʻa optical poho, a kiʻekiʻe laser pōʻino paepae, a hoʻohana nui ʻia i ka nui-level amplification, ring, a me nā laser injection e like me YAG a me T-doped sapphire.
Ka manawa hoʻouna: ʻAukake-16-2023