Te Arotake Poto mo te Lithium Niobate Crystal me ona tono - Wāhanga 7: Te Dielectric Superlattice o LN Crystal

Te Arotake Poto mo te Lithium Niobate Crystal me ona tono - Wāhanga 7: Te Dielectric Superlattice o LN Crystal

I te tau 1962, Armstrong et al.tuatahi te whakaaro o te QPM (Quasi-phase-match), e whakamahi ana i te vector lattice inverted e whakaratohia ana e te superlattice hei utu.phe taurite kore i roto i te tukanga tawhā whatu.Te aronga polarization o te ferroelectricswhakaawes te tere polarization korere χ2. Ka taea te whakatutuki i te QPM ma te whakarite i nga hanganga rohe ferroelectric me nga ahunga polarization o ia wa i roto i nga tinana ferroelectric, tae atu ki te lithium niobate, lithium tantalate, meKTPtioata.Ko te tioata LN tetino whanuiwhakamahiarauemii tenei mara.

I te tau 1969, i kii a Camlibel ko te rohe ferroelectric oLNme etahi atu tioata ferroelectric ka taea te huri ma te whakamahi i te papa hiko ngaohiko teitei i runga ake i te 30 kV/mm.Heoi, ka taea e te papa hiko teitei te wero i te karaihe.I taua wa, he uaua ki te whakarite i nga hanganga electrode pai me te whakahaere tika i te tukanga hurihanga polarization rohe.Mai i tera wa, kua ngana ki te hanga i te hanganga rohe-maha ma te whakahurihuri o te laminationLNtioata i roto i nga huarahi rereke rereke, engari he iti te maha o nga maramara ka taea.I te tau 1980, ko Feng et al.whiwhi tioata ki te hanganga rohe polarization wā i te tikanga o te tipu keokeo mā te rītaha i te pokapū hurihanga karaihe me te mara waiariki axisy-hangarite pokapū, a ka mohio te auau rearua putanga o 1.06 μm taiaho, i manatoko i teQPMariā.Engari he tino uaua tenei tikanga ki te whakahaere pai o te hanganga o ia wa.I te tau 1993, ko Yamada et al.i pai te whakaoti i te tukanga hurihanga polarization rohe o ia wa ma te whakakotahi i te tukanga lithography semiconductor me te tikanga mara hiko.Ko te tikanga polarization parae hiko e whakamahia ana kua noho hei hangarau whakareri auraki o te poled ia waLNtioata.I tenei wa, ko te waahi o te waaLNKo te karaihe kua hokohokohia, ka taea te matotorubeneke atu i te 5 mm.

Ko te tono tuatahi o te poled periodicLNKo te karaihe te nuinga o te whakaaro mo te huringa auau taiaho.No te tau 1989, Ming et al.i whakaarohia te ariā o nga reeti hiko i runga i nga reeti i hangaia mai i nga rohe ferroelectric oLNtioata.Ka whai wāhi te kurupae kōaro o te superlattice ki te whakakorikori me te hora o te ngaru marama me te oro.I te tau 1990, ko Feng me Zhu et al.i whakatakotohia te ariā o te taurite ahua maha.I te tau 1995, Zhu et al.kua whakaritea nga reiti dielectric quasi-periodic na roto i te tikanga polarization pāmahana rūma.I te tau 1997, i whakahaerea te whakamohiotanga whakamatautau, me te pai o te honohono o nga tukanga parametric whatu e rua-Ko te rearua auau me te whakaemi auau i kitea i roto i te superlattice quasi-periodic, na reira i tutuki pai ai te taiaho rearua auau tuatoru mo te wa tuatahi.I te tau 2001, Liu et al.i hangaia he kaupapa ki te whakatutuki i te taiaho e toru-tae i runga i te ahua-waahanga orite.I roto i te 2004, Zhu et al i mohio te hoahoa superlattice whatu o maha-roangaru putanga taiaho me tona tono i roto i lasers katoa-totoka-kāwanatanga.I te 2014, Jin et al.i hangaia he maramara whakaahua whakahiato superlattice i runga i te mea ka taea te whirihoraLNara whatu arataki ngaru (penei i te ahua), ka eke ki te whakaputanga pai o nga whakaahua kua marara me te tere-tere hiko-whakawhitinga i runga i te maramara mo te wa tuatahi.I te tau 2018, i whakarite a Wei et al me Xu et al i nga hanganga rohe waahi 3D i rungaLNtioata, me te mohio ki te hanga kurupae kore-raina pai ma te whakamahi i nga hanganga rohe 3D i te tau 2019.

Integrated active photonic chip on LN and its schematic diagram-WISOPTIC

Ko te maramara whakaahua hohe kua whakauruhia ki runga i te LN (maui) me tana hoahoa hoahoa (matau)

Ko te whanaketanga o te ariā superlattice dielectric kua whakatairanga i te tono oLNtioata me etahi atu tioata ferroelectric ki te teitei hou, a hoatu ana ki a ratouKo nga tirohanga nui mo te tono i roto i nga lasers-too-katoa, heru whatu whatu, laser pulse kōpeketanga, kurupae hanga me te mau puna marama i roto i te whakawhitinga rahi.


Wā tuku: Feb-03-2022