Ngwa ngwa anya magneto dị ụkọ
Ngwa anya Magneto na-ezo aka na ngwa ọrụ ozi ngwa anya nwere mmetụta anya magneto na ultraviolet na band infrared. Ihe ndị na-ahụ anya magneto nke ụwa dị ụkọ bụ ụdị ọhụụ na-arụ ọrụ ozi ngwa anya nke enwere ike ịme ka ọ bụrụ ngwaọrụ anya nwere ọrụ dị iche iche site na iji ngwa anya magneto ha na mmekọrịta na ntụgharị nke ọkụ, ọkụ eletrik, na ndọta. Dị ka modulators, isolators, circulators, magneto-optical switches, deflectors, phase shifters, optical information processors, displays, memories, laser gyro bias mirrors, magnetometer, magneto-optical sensors, ígwè obibi akwụkwọ, ihe ndekọ vidiyo, igwe na-achọpụta ụkpụrụ, diski anya. , ngwa anya waveguides, wdg.
Isi mmalite nke Magneto Optics dị ụkọ
Nkeobere ụwa elementna-ewepụta oge ndọta na-edoghị anya n'ihi oyi akwa elektrọn 4f na-ejupụtaghị, nke bụ isi iyi magnetism siri ike; N'otu oge ahụ, ọ nwekwara ike iduga na ntụgharị electron, nke bụ ihe na-akpata ọkụ ọkụ, na-eduga na ike magneto ngwa anya mmetụta.
Ọla ụwa dị ọcha adịghị egosipụta mmetụta anya magneto siri ike. Naanị mgbe a na-etinye ihe ndị na-adịghị ahụkebe n'ụwa n'ime ngwa anya dị ka iko, kristal ogige, na ihe nkiri alloy, mmetụta magneto-optical siri ike nke ihe ndị na-adịghị ahụkebe ụwa ga-apụta. Ihe magneto-optical a na-ejikarị bụ mgbanwe otu ihe dị ka (REBi) 3 (FeA) kristal garnet 5O12 (ihe metal dị ka A1, Ga, Sc, Ge, In), ihe nkiri amorphous RETM (Fe, Co, Ni, Mn). ), na ugogbe anya ụwa.
Magneto ngwa anya kristal
Igwe kristal magneto optic bụ ihe kristal nwere mmetụta magneto optic. Mmetụta magneto-optical nwere njikọ chiri anya na magnetism nke ihe kristal, karịsịa ike magnetization nke ihe. Ya mere, ụfọdụ ihe ndọta mara mma na-abụkarị ihe magneto-optical nwere ezigbo magneto-optical Njirimara, dị ka yttrium iron garnet na kristal iron garnet na-adịghị ahụkebe. N'ikwu okwu n'ozuzu, kristal nwere ezigbo magneto-optical Properties bụ kristal ferromagnetic na ferrimagnetic, dị ka EuO na EuS ịbụ ferromagnets, yttrium iron garnet na bismuth doped obere earth iron garnet bụ ferrimagnets. Ka ọ dị ugbu a, a na-ejikarị ụdị kristal abụọ a, ọkachasị kristal magnetik.
Obere ụwa ígwè garnet magneto-optical ihe onwunwe
1. Structural e ji mara ụkọ ụwa ígwè garnet magneto-optical ihe
Ụdị Garnet ferrite bụ ụdị ihe ndọta ọhụrụ nke mepụtara ngwa ngwa n'oge a. Nke kacha mkpa n'ime ha bụ obere earth iron garnet (nke a makwaara dị ka magnetik garnet), nke a na-akpọkarị RE3Fe2Fe3O12 (nwere ike ịkpọ ya RE3Fe5O12), ebe RE bụ yttrium ion (ụfọdụ na-ejikwa Ca, Bi plasma), Fe. Enwere ike dochie ions dị na Fe2 site na In, Se, Cr plasma, yana Fe ion na Fe nwere ike dochie ya na A, Ga plasma. Enwere ngụkọta nke ụdị 11 nke otu igwe ọgbara ọhụrụ na-adịghị ahụkebe nke emepụtara ruo ugbu a, nke kacha mara amara bụ Y3Fe5O12, nke akpọchiri dị ka YIG.
2. Yttrium ígwè garnet magneto-optical ihe
Ụlọ ọrụ Bell bụ nke mbụ chọpụtara Yttrium iron garnet (YIG) na 1956 dị ka otu kristal nwere mmetụta magneto-optical siri ike. Magnetized yttrium iron garnet (YIG) nwere ihe ndọta ndọta ọtụtụ iwu dị ala karịa ferrite ọ bụla ọzọ na mpaghara ultra-high ugboro, na-eme ka a na-eji ya dị ka ihe nchekwa ozi.
3. High Doped Bi Series Rare Earth Iron Garnet Magneto Optical Materials
Site na mmepe nke teknụzụ nzikọrịta ozi anya, ihe achọrọ maka ịdị mma na ikike nnyefe ozi abawanyela. Site n'echiche nke nchọpụta ihe, ọ dị mkpa iji melite arụmọrụ nke magneto-optical ihe dị ka isi nke ndị na-emepụta ihe, nke mere na ntụgharị Faraday ha nwere obere ọnụọgụ okpomọkụ na nnukwu nkwụsi ike nke ogologo oge, iji mee ka nkwụsi ike nke ikewapụ ngwaọrụ megidere. mgbanwe okpomọkụ na ogologo ogologo. Igwe doped Bi ion dị elu na-adịghị ahụkebe ụwa ígwè garnet otu kristal na ihe nkiri dị gịrịgịrị abụrụla ebe nyocha.
Bi3Fe5O12 (BiG) otu ihe nkiri dị gịrịgịrị kristal na-eweta olile anya maka mmepe nke ihe dịpụrụ adịpụ magneto ngwa anya agbakwunyere. Na 1988, T Kouda et al. nwetara Bi3FesO12 (BiIG) otu ihe nkiri kristal dị mkpa maka oge mbụ site na iji usoro ntinye ntinye plasma reactive RIBS (reaction lon bean sputtering). N'ikpeazụ, United States, Japan, France, na ndị ọzọ nwetara nke ọma Bi3Fe5O12 na elu Bi doped obere earth iron garnet magneto-optical films site na iji ụzọ dị iche iche.
4. Ce doped obere ụwa ígwè garnet magneto-optical ihe
Tụnyere ihe ndị a na-ejikarị dị ka YIG na GdBiIG, Ce doped rare earth iron garnet (Ce: YIG) nwere njirimara nke nnukwu akụkụ ntụgharị Faraday, ọnụọgụ okpomọkụ dị ala, nnabata dị ala, yana ọnụ ala dị ala. Ọ bụ ugbu a ụdị ihe ọhụrụ ntụgharị Faraday na-ekwe nkwa magneto-optical ihe.
Ngwa nke ihe ndị na-ahụ anya Magneto na-adịghị ahụkebe
Ihe kristal anya Magneto nwere mmetụta Faraday dị ọcha, ọnụọgụ nnabata dị ala na ogologo ogologo, yana ndọta dị elu na ikike. A na-ejikarị eme ihe na mmepụta nke ndị na-ahụ maka anya anya, ihe ndị na-adịghị na-emegharị anya, magneto optical memory na magneto optical modulators, fiber optic Communication na integrated ngwa anya ngwaọrụ, kọmputa nchekwa, mgbagha ọrụ na nnyefe ọrụ, magneto ngwa anya ngosi, magneto ngwa anya ndekọ, ọhụrụ ngwa ndakwa nri ngwaọrụ. , Laser gyroscopes, wdg Site na nchọpụta na-aga n'ihu nke ihe magneto-optical crystal, ihe dị iche iche nke ngwaọrụ nwere ike itinye na ịmepụta ga-abawanye.
(1) Optical isolator
Na sistemu ngwa anya dị ka nkwurịta okwu fiber optic, enwere ìhè na-alaghachi na isi iyi laser n'ihi nlegharị anya nke akụkụ dị iche iche na ụzọ anya. Ìhè a na-eme ka ọkụ ọkụ na-arụpụta ihe nke isi iyi laser ghara ịdị n'otu, na-eme ka mkpọtụ anya, ma na-amachi ikike nnyefe na anya nkwurịta okwu nke mgbaàmà na nkwurịta okwu fiber optic, na-eme ka usoro ngwa anya na-ejighị n'aka na-arụ ọrụ. Ihe dịpụrụ adịpụ anya bụ ngwa anya na-agafe agafe nke na-enye ohere naanị ọkụ unidirectional ka ọ gafee, ụkpụrụ ọrụ ya dabere na enweghị ngbanwe nke ntụgharị Faraday. Ìhè na-egosipụta site na eriri optic echoes nwere ike kewapụ ya nke ọma site n'ichepụta anya.
(2) Magneto optic tester ugbu a
Ọganihu ngwa ngwa nke ụlọ ọrụ ọgbara ọhụrụ etinyela ihe dị elu chọrọ maka nnyefe na nchọpụta nke grids ike, na usoro mgba ọkụ dị elu na nke dị ugbu a nke ọdịnala ga-eche nnukwu nsogbu ihu. Site na mmepe nke teknụzụ fiber optic na sayensị ihe, magneto-optical testers enwetawo nlebara anya zuru ebe niile n'ihi ezigbo mkpuchi mkpuchi na ike mgbochi nnyonye anya, nha nha dị elu, obere obere obere, na enweghị ihe egwu nwere ike ịgbawa.
(3) Ngwa igwe igwe
YIG nwere njiri mara ahịrị resonance ferromagnetic dị warara, ihe owuwu siri ike, nkwụsi ike dị mma nke ọnọdụ okpomọkụ, yana obere njiri mara elektrọn magnetik n'ogo dị elu. Njirimara ndị a na-eme ka ọ dị mma maka ịmepụta ngwaọrụ ngwa ndakwa nri dị iche iche dị ka ndị na-emepụta ihe na-emepụta ihe dị elu, ihe nzacha bandpass, oscillators, AD n'iji ya gee ntị ọkwọ ụgbọala, wdg. A na-ejikarị ya eme ihe na igwe igwe ngwa ngwa n'okpuru eriri X-ray. Na mgbakwunye, magneto-optical crystals nwekwara ike ime ka ọ bụrụ ngwaọrụ magneto-optical dị ka ngwaọrụ yiri mgbanaka na ihe ngosi magneto-optical.
(4) Ebe nchekwa anya Magneto
Na teknụzụ nhazi ozi, a na-eji mgbasa ozi magneto-optical maka ịdekọ na ịchekwa ozi. Nchekwa ngwa anya Magneto bụ onye ndu na nchekwa ngwa anya, yana njirimara nke nnukwu ikike yana ngbanwe n'efu nke nchekwa ngwa anya, yana uru nke idegharị ihe nchekwa magnetik na nkezi ohere ọsọ yiri draịva magnetik. Ọnụ ego arụmọrụ ga-abụ isi ihe ma magneto optical disks nwere ike iduga ụzọ.
(5) TG otu kristal
TGG bụ kristal mepụtara site na Fujian Fujing Technology Co., Ltd. (CASTECH) na 2008. Uru ya bụ isi: TGG otu kristal nwere nnukwu magneto-optical na-adịgide adịgide, ikuku okpomọkụ dị elu, nkwụsị anya dị ala, na ọnụ ụzọ mmebi laser dị elu, na A na-eji ọtụtụ ọkwa dị elu, mgbanaka, na laser injections mkpụrụ dị ka YAG na T-doped sapphire.
Oge nzipu: Ọgọst-16-2023