Ifilimu elincanyana le-lithium niobate (ln) photodepector

Ifilimu elincanyana le-lithium niobate (ln) photodepector

I-Lithium niobate (LN) inesakhiwo esiyingqayizivele se-crystal nemiphumela ecebile yomzimba, efana nemiphumela engemihle, imiphumela ye-electro-optic, imiphumela ye-pyroelectric, kanye nemiphumela ye-piezoelectric. Ngasikhathi sinye, inezinzuzo zewindi le-wideband optical deprarecy deprency Lezi zici zenza i-LN iplatifomu ebalulekile yesizukulwane esisha sama-Photonics ahlanganisiwe. Kumadivayisi we-Optical and Optoelectronic Systems, izici ze-LN zinganikeza imisebenzi ecebile nokusebenza, ukukhuthaza ukuxhumana kwe-Optical, ama-Optical Computing, kanye nezinkundla zokuzwakala. Kodwa-ke, ngenxa yokumunyisa okubuthakathaka nokufakwa kwe-lithium niobate, uhlelo oluhlanganisiwe lwe-lithium niobate lusabhekene nenkinga yokutholwa okunzima. Eminyakeni yamuva nje, imibiko kulo mkhakha ifaka phakathi i-PhotoDeteectors ehlanganisiwe ye-WaveGuide kanye ne-Heterojustct PhotoDetectors.
I-PhotoDector ehlanganisiwe ye-WaveGuide esekelwe ku-Lithium Niobate imvamisa igxile kwi-Optical Communication C-band (1525-1565nm). Ngokuya komsebenzi, i-LN ikakhulukazi idlala indima yamagangeji aqondisiwe, kanti umsebenzi wokutholwa kwe-Opoleelyronic uthembele kakhulu kuma-semiconductors anjenge-silicon, iii-v ama-bandgap semiconductors, kanye nezinto zokwakha ezimbili. Ngokwakhiwa okunjalo, kukhanya kudluliswa nge-Lithium Niobate WaveGuides elahlekile, bese kuthola ezinye izinto ze-semiconductor ezisuselwa emiphumeleni yezithombe (njenge-Photovoltaic noma imiphumela ye-PhotovolTivity) ukukhulisa amasiginali kagesi okukhipha. Izinzuzo zisebenza kakhulu i-bandwidth (~ GHz), i-voltage ephansi yokusebenza, usayizi omncane, kanye nokuhambisana nokuhlanganiswa kwe-Photonic Chip. Kodwa-ke, ngenxa yokwehlukaniswa kwendawo ye-lithium niobate kanye nezinto zokwenziwa ze-semiconductor, yize ngayinye yenza imisebenzi yazo, i-Ln idlala indima kumagagasi aqondisayo kanye nezinye izakhiwo zakwamanye amazwe ezinhle kakhulu azisetshenziswa kahle. Izinto ze-semicondector kuphela zidlala indima ekuguqukeni kwe-photoelectric futhi zintule ukuhlanganiswa okuhambisana nomunye, okuholela eqenjini elilinganiselwe elilinganiselwe. Mayelana nokuqaliswa okuthile, ukuhlanganiswa kokukhanya okuvela kumthombo wokukhanya ku-lithium niobate we-waveguide kuholela ekulahlekelweni okubalulekile nezidingo zenqubo eziqinile. Ngaphezu kwalokho, amandla okukhanya angempela okukhanya okuxhumeke esiteshini sedivaysi ye-semiconductor kulesi sifunda sokuhlanganisa kunzima ukukala, okukhawulela ukusebenza kwayo kokutholwa.
NgokwesikoPhotoDeteectorsIsetshenziselwa ukwenza izithombe ngokuvamile kususelwa ezintweni ze-semiconductor. Ngakho-ke, nge-Lithium niobate, isilinganiso saso sokufakwa kokukhanya okuphansi kanye nezindawo ezifaka i-infation zenza ngokungangabazeki azithandwa ngabacwaningi bezithombe, kanye nephuzu elinzima endle. Kodwa-ke, ukuthuthukiswa kobuchwepheshe be-heterojuction Technology eminyakeni yamuva kulethe ithemba ocwaningweni lwe-PhotoDeteectors esekelwe eLithium Niobate. Ezinye izinto ezinokufakwa okuqinile kokukhanya noma ukuvumelanisa okuhle kungahlanganiswa ne-lithium niobate ukunxephezela ukushiyeka kwalo. Ngasikhathi sinye, i-polarization engazenzisi iye yaphoqa izici ze-pyroelectric of lithium niobate ngenxa ye-anisotrodropy yayo yesakhiwo ingalawulwa ngokuguqulwa ekushiseni ngaphansi kokutholwa kokukhanya, ngaleyo ndlela kushintsha izici zokutholwa kwe-opoleelectric. Lo mphumela we-thermal unezinzuzo ze-wideband kanye nokuzishayela, futhi kungafakwa kahle futhi kuthathwe nezinye izinto. Ukusetshenziswa okuvumelanayo kwemiphumela eshisayo ne-photoelectric kuvule inkathi entsha ye-Lithium Nithium niobate esekelwe PhotoDetectors, ukunika amandla amadivayisi ukuhlanganisa izinzuzo zemiphumela yomibili. Futhi ukwenza ukushiyeka futhi uzuze ukuhlanganiswa okuhambisana nezinzuzo, kuyindawo yokucwaninga eshisayo eminyakeni yamuva. Ngaphezu kwalokho, ukusetshenziswa kwe-Ion Ukufakwa, ubunjiniyela be-band, futhi ubunjiniyela obuhle buyisinqumo esihle ukuxazulula ubunzima bokuthola i-lithium niabate. Kodwa-ke, ngenxa yobunzima obuphezulu bokucubungula kwe-lithium niobate, le nkambu isebhekene nezinselelo ezinkulu ezifana nokuhlanganiswa okuphansi, amadivaysi okulingisa kanye nezinhlelo, futhi inenani elihle lokucwaninga kanye nendawo.

Umdwebo 1, usebenzisa izici zamandla ezibucayi ngaphakathi kwe-bandgap ye-LN njenge-Electron Donror Centers, kukhiqizwa abathwali bamahhala be-elektroni Qhathanisa nabakwa-Pyroelectric Ln photodeteectors, ababevame ukukhawulelwa esivinini sokuphendula esizungeze i-100hz, lokhuI-LN PhotoDepectorinesivinini sokuphendula esisheshayo esifinyelela ku-10KHZ. Ngaleso sikhathi, kulo msebenzi, kwaboniswa ukuthi i-magnesium ion idonswe i-Ln ingafinyelela ukuguquguquka okukhanyayo kwangaphandle ngempendulo ye-10KHZ. Lo msebenzi ukhuthaza ucwaningo ngokusebenza okuphezulu futhiAma-PhotoDeteectors aphezulu we-LNEkwakhiweni kokusebenza okugcwele okuhlanganisiwe kwe-chip okuhlanganiswe ama-LN Photonic Chips.
Ngokufingqa, insimu yocwaningo yeIfilimu elincanyana le-Lithium Nithiyate PhotoDetectorsinokubaluleka kwesayensi okubalulekile kanye namandla amakhulu okusebenzisa application. Ngokuzayo, ngokuthuthukiswa kobuchwepheshe kanye nokujula kocwaningo, amafilimu amafilimu amafilimu we-lithium niobate (ln) photodedeectors azothuthukisa ukuhlanganiswa okuphezulu. Ukuhlanganisa izindlela ezihlukile zokuhlanganisa ukufezekisa ukusebenza okuphezulu, okusheshayo kwempendulo, kanye ne-wildom film film lithium niobate kuzokuthola okungokoqobo, futhi kuzothuthukisa kakhulu ukuthuthukiswa kwezinkambu ze-Chip kanye ne-Intelligent Sensing Fields, futhi zinikeze amathuba amaningi we Isizukulwane esisha sezicelo ze-Photonics.