Wafer mai inci 8 na LNOI (LiNbO3 akan Insulator) don Masu Gyaran gani Jagorar Waveguides Masu Haɗaka
Cikakken Zane
Gabatarwa
Wafers ɗin Lithium Niobate akan Insulator (LNOI) wani abu ne na zamani da ake amfani da shi a aikace-aikacen gani da na lantarki daban-daban. Ana samar da waɗannan wafers ta hanyar canja wurin siririn layin lithium niobate (LiNbO₃) zuwa wani abu mai hana ruwa shiga, yawanci silicon ko wani abu mai dacewa, ta amfani da dabaru masu inganci kamar dasa ion da haɗin wafer. Fasahar LNOI tana da kamanceceniya da fasahar wafer ɗin Silicon akan Insulator (SOI) amma tana amfani da kaddarorin gani na musamman na lithium niobate, wani abu da aka sani da halayen gani na piezoelectric, pyroelectric, da marasa layi.
Wafers na LNOI sun sami babban matsayi a fannoni kamar na'urorin gani masu haɗaka, sadarwa, da kuma na'urorin kwamfuta na quantum saboda kyakkyawan aikinsu a aikace-aikacen mita da sauri. Ana samar da wafers ɗin ta amfani da dabarar "Smart-cut", wadda ke ba da damar sarrafa kauri na fim ɗin lithium niobate mai sirara, wanda ke tabbatar da cewa wafers ɗin sun cika ƙa'idodin da ake buƙata don aikace-aikace daban-daban.
Ƙa'ida
Tsarin ƙirƙirar wafers na LNOI yana farawa da babban lu'ulu'u na lithium niobate. Ana shigar da lu'ulu'u a cikin ion, inda ake shigar da ions na helium masu ƙarfi a saman lu'ulu'u na lithium niobate. Waɗannan ions ɗin suna shiga lu'ulu'u zuwa wani zurfin kuma suna wargaza tsarin lu'ulu'u, suna ƙirƙirar wani jirgin sama mai rauni wanda daga baya za a iya amfani da shi don raba lu'ulu'u zuwa sirara. Ƙarfin ions na helium yana sarrafa zurfin dasawa, wanda ke shafar kauri na ƙarshen layin lithium niobate.
Bayan dasa ion, ana haɗa lu'ulu'u na lithium niobate zuwa wani abu mai kama da substrate ta amfani da wata dabara da ake kira wafer bonding. Tsarin haɗa lu'ulu'u yawanci yana amfani da hanyar haɗa kai tsaye, inda saman biyu (lu'ulu'u na lithium niobate da aka dasa ion da substrate) ake matse su tare a ƙarƙashin zafi mai yawa da matsin lamba don ƙirƙirar haɗin gwiwa mai ƙarfi. A wasu lokuta, ana iya amfani da kayan manne kamar benzocyclobutene (BCB) don ƙarin tallafi.
Bayan haɗawa, wafer ɗin yana yin aikin ƙara girman jiki don gyara duk wata lalacewa da dasa ion ɗin ya haifar da kuma haɓaka haɗin kai tsakanin layukan. Tsarin ƙara girman jiki kuma yana taimakawa siririn layin lithium niobate ya rabu daga lu'ulu'u na asali, yana barin wani siriri mai inganci na lithium niobate wanda za'a iya amfani da shi don ƙera na'urori.
Bayani dalla-dalla
Wafers ɗin LNOI suna da wasu muhimman bayanai da ke tabbatar da dacewarsu ga aikace-aikacen da ke da inganci. Waɗannan sun haɗa da:
Bayanan Kayan;
| ;Kayan aiki; | ;Bayani dalla-dalla; |
| Kayan Aiki | Iri ɗaya: LiNbO3 |
| Ingancin Kayan Aiki | Kumfa ko abubuwan da aka haɗa <100μm |
| Hanya | Yanke-Y ±0.2° |
| Yawan yawa | 4.65 g/cm³ |
| Zafin Curie | 1142 ±1°C |
| Bayyana gaskiya | >95% a cikin kewayon nm 450-700 (kauri mm 10) |
Bayanan Masana'antu;
| ;Sigogi; | ;Bayani; |
| diamita | 150 mm ±0.2 mm |
| Kauri | 350 μm ±10 μm |
| Faɗi | <1.3 μm |
| Jimlar Bambancin Kauri (TTV) | Wafer mai kauri <70 μm @ 150 mm |
| Bambancin Kauri na Gida (LTV) | <70 μm @ 150 mm wafer |
| Taurin kai | Rq ≤0.5 nm (ƙimar RMS ta AFM) |
| Ingancin Fuskar | 40-20 |
| Ƙwayoyin cuta (Ba za a iya cirewa ba) | Ƙwayoyin 100-200 μm ≤ Ƙwayoyin 3 |
| Kwakwalwa | <300 μm (cikakken wafer, babu yankin keɓewa) |
| Fashewa | Babu fasawa (cikakken wafer) |
| Gurɓatawa | Babu tabo marasa cirewa (cikakken wafer) |
| Daidaito tsakanin mutane | <30 arcseconds |
| Jirgin Saman Nazari na Gabatarwa (X-axis) | 47 ± 2 mm |
Aikace-aikace
Ana amfani da wafers na LNOI a fannoni daban-daban saboda keɓantattun halayensu, musamman a fannin fasahar photonics, sadarwa, da fasahar quantum. Wasu daga cikin manyan aikace-aikacen sun haɗa da:
Haɗaɗɗen Na'urorin Hankali:Ana amfani da wafers na LNOI sosai a cikin da'irorin gani da aka haɗa, inda suke ba da damar na'urorin photonic masu aiki kamar su modulators, waveguiders, da resonators. Babban halayen gani mara layi na lithium niobate ya sa ya zama kyakkyawan zaɓi don aikace-aikacen da ke buƙatar ingantaccen sarrafa haske.
Sadarwa:Ana amfani da wafers na LNOI a cikin na'urorin gyaran fuska, waɗanda suke da mahimmanci a cikin tsarin sadarwa mai sauri, gami da hanyoyin sadarwa na fiber optic. Ikon daidaita haske a manyan mitoci yana sa wafers na LNOI ya dace da tsarin sadarwa na zamani.
Kwamfuta Mai Kwatantawa:A cikin fasahar kwantum, ana amfani da wafers na LNOI don ƙera abubuwan da ke cikin kwamfutocin kwantum da tsarin sadarwa na kwantum. Ana amfani da kaddarorin gani marasa layi na LNOI don ƙirƙirar nau'ikan photon da suka makale, waɗanda suke da mahimmanci ga rarraba maɓallan kwantum da cryptography na kwantum.
Na'urori masu auna firikwensin:Ana amfani da wafers na LNOI a aikace-aikacen ji da gani daban-daban, gami da na'urori masu auna haske da sauti. Ikonsu na yin mu'amala da haske da sauti yana sa su zama masu amfani ga nau'ikan fasahar ji da gani daban-daban.
Tambayoyin da ake yawan yi akai-akai
Q:Menene fasahar LNOI?
A:Fasahar LNOI ta ƙunshi canja wurin wani siririn fim na lithium niobate zuwa wani abu mai hana ruwa shiga, yawanci silicon. Wannan fasaha tana amfani da keɓantattun halaye na lithium niobate, kamar manyan halayenta na gani marasa layi, piezoelectricity, da pyroelectricity, wanda hakan ya sa ta dace da haɗakar na'urorin gani da sadarwa.
Q:Menene bambanci tsakanin wafers na LNOI da SOI?
A: Dukansu wafers na LNOI da SOI iri ɗaya ne domin sun ƙunshi wani siririn Layer na abu da aka haɗa da wani abu. Duk da haka, wafers na LNOI suna amfani da lithium niobate a matsayin siraran fim, yayin da wafers na SOI suna amfani da silicon. Babban bambanci yana cikin halayen kayan fim ɗin siriri, tare da LNOI yana ba da kyawawan halaye na gani da piezoelectric.
Q:Menene fa'idodin amfani da wafers na LNOI?
A: Manyan fa'idodin wafers na LNOI sun haɗa da kyawawan halayensu na gani, kamar manyan ma'aunin gani marasa layi, da ƙarfin injina. Waɗannan halaye sun sa wafers na LNOI su zama masu dacewa don amfani a cikin aikace-aikacen sauri, mita mai yawa, da kuma kwantenar.
Q:Za a iya amfani da wafers na LNOI don aikace-aikacen kwantum?
A: Eh, ana amfani da wafers na LNOI sosai a fasahar kwantum saboda iyawarsu ta samar da nau'ikan photon da suka makale da kuma dacewarsu da na'urorin photonics masu hade. Waɗannan halaye suna da matuƙar muhimmanci ga aikace-aikacen kwamfuta ta kwantum, sadarwa, da kuma ɓoye bayanai.
Q:Menene kauri na yau da kullun na fina-finan LNOI?
A:Fina-finan LNOI yawanci suna kama daga 'yan daruruwan nanometers zuwa micrometers da yawa a kauri, ya danganta da takamaiman aikace-aikacen. Ana sarrafa kauri yayin aikin dasa ion.
