Ifoto yoroheje ya lithium niobate (LN) ifotora

Ifoto yoroheje ya lithium niobate (LN) ifotora

Litiyumu niobate (LN) ifite imiterere yihariye ya kirisiti hamwe ningaruka zikomeye zumubiri, nkingaruka zidafite umurongo, ingaruka za electro-optique, ingaruka za pyroelectric, ningaruka za piezoelectric. Mugihe kimwe, ifite ibyiza bya Broadband optique transparency idirishya hamwe nigihe kirekire. Ibiranga bituma LN iba urubuga rwingenzi kubisekuru bishya bya fotonike ihuriweho. Mubikoresho bya optique hamwe na sisitemu ya optoelectronic, ibiranga LN birashobora gutanga ibikorwa byiza nibikorwa, biteza imbere iterambere ryitumanaho rya optique, kubara optique, hamwe na optique yo kumva. Nyamara, kubera intege nke zo kwinjiza no kubika insimburangingo ya lithium niobate, ikoreshwa rya lithium niobate iracyafite ikibazo cyo gutahura bigoye. Mu myaka yashize, raporo muriki gice zirimo cyane cyane umurongo wa fotodetekeri hamwe na fotodeteri ya heterojunction.
Umuhengeri woguhuza fotodetekeri ushingiye kuri lithium niobate mubusanzwe wibanda kumatumanaho optique C-band (1525-1565nm). Ku bijyanye n'imikorere, LN ikina cyane cyane uruhare rwumuraba uyobowe, mugihe ibikorwa bya optoelectronic detection ahanini bishingiye kumasoko ya semiconductor nka silicon, III-V itsinda rifunganye igice cya semiconductor, hamwe nibikoresho bibiri. Muri ubwo buryo bwubatswe, urumuri rwanduzwa binyuze muri lithium niobate optique yumurongo hamwe nigihombo gito, hanyuma igakoreshwa nibindi bikoresho bya semiconductor bishingiye ku ngaruka zifotora (nka fotokondivite cyangwa ingaruka zifotora) kugirango byongere imbaraga zabatwara kandi bihindurwe mubimenyetso byamashanyarazi kugirango bisohore. Ibyiza nibikorwa byogukora cyane (~ GHz), voltage ikora, ingano ntoya, hamwe no guhuza fotonike ya chip. Ariko, kubera gutandukanya umwanya wa lithium niobate nibikoresho bya semiconductor, nubwo buriwese akora imirimo ye, LN igira uruhare mukuyobora imiraba nibindi bintu byiza byamahanga ntibyakoreshejwe neza. Ibikoresho bya Semiconductor bigira uruhare gusa muguhindura amashanyarazi no kubura guhuza kuzuzanya, bikavamo itsinda rito ugereranije. Kubireba ishyirwa mubikorwa ryihariye, guhuza urumuri kuva kumucyo kugera kuri lithium niobate optique waveguide bivamo igihombo gikomeye nibisabwa muburyo bukomeye. Byongeye kandi, imbaraga nyazo za optique zumucyo zamurikiwe kumuyoboro wibikoresho bya semiconductor mukarere kahujwe biragoye kubihindura, bigabanya imikorere yabyo.
Gakondogufotoraikoreshwa mugushushanya amashusho mubisanzwe bishingiye kubikoresho bya semiconductor. Kubwibyo, kuri lithium niobate, igipimo cyayo cyo kwinjiza urumuri ruke hamwe nuburyo bwo kubika ibintu bituma nta gushidikanya ko bidashyigikirwa nabashakashatsi ba fotodetekeri, ndetse ningingo igoye murwego. Nyamara, iterambere ryikoranabuhanga rya heterojunction mumyaka yashize ryazanye ibyiringiro mubushakashatsi bwa lithium niobate ishingiye kumafoto. Ibindi bikoresho bifite urumuri rukomeye cyangwa imiyoboro myiza irashobora guhuzwa hamwe na lithium niobate kugirango yishyure amakosa yayo. Muri icyo gihe, polarisiyonike ihita itera pyroelectric iranga lithium niobate bitewe na anisotropy yuburyo bwayo irashobora kugenzurwa no guhindura ubushyuhe munsi yumucyo urumuri, bityo bigahindura ibiranga pyroelectric kugirango tumenye optoelectronic. Ingaruka yubushyuhe ifite ibyiza byo kwaguka no gutwara ibinyabiziga, kandi birashobora kuzuzwa neza no guhuzwa nibindi bikoresho. Gukoresha uburyo bwogukoresha ingaruka zumuriro nifoto yamashanyarazi byafunguye ibihe bishya kuri lithium niobate ishingiye kumafoto, bifasha ibikoresho guhuza ibyiza byingaruka zombi. Kandi kugirango wuzuze ibitagenda neza kandi ugere kubwuzuzanye bwinyungu, Nibintu byubushakashatsi mumyaka yashize. Byongeye kandi, gukoresha ion transplantation, band engineering, na injeniyeri inenge nabyo ni amahitamo meza yo gukemura ikibazo cyo kumenya lithium niobate. Nyamara, kubera ikibazo kinini cyo gutunganya lithium niobate, uyu murima uracyafite imbogamizi zikomeye nko kwishyira hamwe, ibikoresho byerekana amashusho hamwe na sisitemu, hamwe nibikorwa bidahagije, bifite agaciro gakomeye mubushakashatsi n'umwanya.

Igishushanyo 1, ukoresheje ingufu zifite inenge ziri muri bande ya LN nkibigo bitanga abaterankunga ba elegitoronike, abatwara ibicuruzwa byubusa bikorerwa mumashanyarazi munsi yumucyo ugaragara. Ugereranije na pyroelectric LN ifotora, ubusanzwe yagarukiraga kumuvuduko wo gusubiza hafi 100Hz, iyiLN ifotoraifite umuvuduko wihuse wa 10kHz. Hagati aho, muri iki gikorwa, herekanywe ko magnesium ion ikoporora LN ishobora kugera ku mucyo wo hanze hamwe nigisubizo cya 10kHz. Uyu murimo uteza imbere ubushakashatsi kumikorere-yo hejuru kandiyihuta cyane ya LN ifotoramubwubatsi bwimikorere yuzuye imwe-chip ihuriweho na LN Photonic chip.
Muncamake, urwego rwubushakashatsi bwafirime yoroheje lithium niobate ifotoraifite akamaro gakomeye mubumenyi nubushobozi bukomeye bwo gushyira mubikorwa. Mu bihe biri imbere, hamwe niterambere ryikoranabuhanga hamwe nubushakashatsi bwimbitse, amashusho yoroheje ya lithium niobate (LN) yerekana amafoto azatera imbere agana hamwe. Gukomatanya uburyo butandukanye bwo kwishyira hamwe kugirango ugere kumikorere-yo hejuru, igisubizo cyihuse, hamwe na Broadband thin film lithium niobate Photodetector mubice byose bizahinduka impamo, bizateza imbere cyane iterambere ryibikorwa bya chip hamwe nibice byubwenge byubwenge, kandi bitange ibishoboka byinshi kubisekuru bishya bya fotonike.