Ko ngā pūnaha taiaho hou — mai i ngā taiaho pāhekoheko femtosecond e whakamahia ana i roto i te pokanga kanohi me te tukatuka rauemi moroiti ki ngā taiaho picosecond i roto i te tuhi semiconductor me te tirotiro tere rawa — me whakanoho ō rātou hihi me ngā wahi mahi me te tika o te wāhi i inehia i roto i ngā maikiromita, i ētahi wā he nanometa. He tino ataahua te ahupūngao o te mārama, engari me rite te tika o ngā tikanga e whakanoho ana i ngā wāhanga whatu me ngā wahi mahi.
I roto i tēnei whānuitanga o ngā tono tika o te taiaho, kotahi te wāhanga e puta pinepine ana: te atamira karāhe e mau ana i te hau. He huinga āhua rerekē - he toka tawhito e honoa ana ki te hangarau mauri hau hou - kua noho te atamira karāhe e mau ana i te hau hei paerewa tuturu i roto i ngā pūnaha taiaho tika nā te mea ka whakatauhia, pai ake i tētahi atu huarahi, ngā wero hangarau taketake o te nekehanga kore waku, te wehenga wiri, me te pumau o te taha.
Ka tirohia e tēnei tuhinga ngā mātāpono hangarau kei muri i ngā papa karāhe hau-pipi, ka whakamāramahia he aha i hanga ai te karāhe me ngā peera hau he hononga whai hua, ā, ka whai i ō rāua tono puta noa i te whenua o ngā pūnaha taiaho tika hou.
Ngā Peera Hau: Te Nekehanga Kore-Wāwhati i te Tauine Nanomita
Ko ngā peera huānga hurihuri tuku iho — ngā pōro, ngā roera rānei e neke ana i ngā ara reihi — koia te tino mahi a ngā pūnaha nekehanga mīhini. He pono, he kiato, ā, he kaha ki te kawe i te kawenga nui. Engari he herenga taketake tō rātou: he whanonga piri-paheke, ko te nekehanga moroiti koretake e puta ana i te wa e huri ai te waku pumau ki te waku nekeneke i te wā o te nekehanga tuatahi, ā, i te wa e taunekeneke ana ngā āputaputa o ngā mata hurihuri.
I ngā tauine makoro, he mea whakararuraru noa iho te paheke-piri. I te tauine nanometer, he arai taketake ki te nekehanga maeneene, ka taea te tukurua. Kāore e taea e te pūnaha tūnga me tutuki te tukurua 10-nanometer te aro ki te peera e whakaatu ana i te paheke-piri 100-nanometer i te wā e tīmata ai te nekehanga.
Ka whakakorea katoatia te paheke-piri e ngā whāriki hau mā te whakakapi i te pa o te miihini ki tētahi kiriata hau angiangi pēhanga — he matotoru te nuinga o te wā 5–15 maikiromita — e wehe katoa ana i te atamira neke mai i te mata tohutoro. Ki te kore he pa o te miihini, kāore he waku i te tikanga tuku iho, kāore he paheke-piri, ā, kāore he kakahu. Ka paheke te atamira i runga i te hau, ā, ka taea te neke maeneene me te whakahoki anō i runga i te tika o te mata tohutoro.
He hohonu ngā pānga ki te nekehanga tika. Ka taea e te atamira kawe hau te neke i roto i ngā pikinga o ngā nanometer me te āheinga whakahoki e wero ana i tetaputapu inewhakamahia hei manatoko. Ka taea te whakahaere i te tere ki te neke atu i te 0.01% te ōritetanga i ngā tere mai i te maikiromita ia hekona ki te mita ia hekona. Ko te peera tonu e whai wāhi ana ki te kore rerekētanga kaha puta noa i tana haerenga - he āhuatanga tino nui mō ngā pūnaha taiaho kei reira ngā raruraru kaha ka whakaoho i ngā haruru miihini me te pirau i te tūranga hihi.
He aha te Granite te Mata Tohutoro Pai mō te Pupuri Hau
Ko te pai o te atamira hau ko te mata e eke ana ki runga. Me tutuki e te mata tohutoro ētahi whakaritenga uaua i te wā kotahi.
Tuatahi, te papatahi. He tairongo ngā whāriki hau ki ngā hapa āhua mata nā te mea he rite te matotoru o te kiriata hau (te tikanga 5–15 μm) te rahi ki ngā ātete papatahi mata ka taea te whakatutuki i roto i te huri me te tāmi tika. Ko te nekeneke o te mata o te 1 μm ka puta he rerekētanga 1 μm i roto i te āputa hau — ka puta tika tēnei hei hapa tūnga poutū 1 μm i te atamira. Mō tētahi pūnaha e aro ana ki te tika poutū 100-nanometer, me papatahi te mata tohutoro kia pai ake i te 100 nanometer i runga i te awhe haere katoa.
Tuarua, te taratara o te mata. Ka whakauhia te kiriata hau i roto i te peera hau e ngā āhuatanga matotoru o te hau e rere ana i waenga i te papa peera me te mata tohutoro. Ka whakararuraru te taratara mata nui i te kiriata hau, ka puta he rerekētanga pēhanga, ā, ka uru te haruru ki roto i te nekehanga o te atamira. Ko ngā uara taratara mata i raro i te Ra 0.05 μm (50 nanometer) e hiahiatia ana mō ngā tono peera hau pai rawa atu.
Tuatoru, te pakeketanga me te ātete ki te kakahu. Ahakoa i hangaia ngā peera hau hei karo i te pa atu, ka pā pea ētahi wā i te wā e tīmata ana, e mutu ohorere ana, e rahua ana rānei te tuku hau. Me mārō te mata tohutoro hei ātete i te ngau, i te kino rānei mai i ēnei mahi. Ko te karāneti, me te pakeketanga Mohs o te 6–7 (ko te nuinga o te mea nā te nui o te kuata), he pai ake te ātete ki te kakahu i te konumohe, i te nuinga rānei o ngā kirihou, ā, he rite, he pai ake rānei i te maitai whakapakeke mō tēnei kaupapa.
Tuawhā, te pumau o te wera. Ko te āputa hau i roto i te peera hau he tawhā āhuahanga e tino whakahaerehia ana. Ko te whānui wera e whakarerekē ana i te āputa ka whakarerekē i te pakari o te peera me te kaha kawenga - ā, ka whakarerekē i te tūranga tohutoro o te atamira. Ko te tauwehenga whānui wera iti me te pumau o te karāhe, me tōna papatipu wera teitei (te urupare puhoi ki ngā huringa pāmahana), ka whakarato i te pumau e hiahiatia ana e ngā pūnaha taiaho tika.
Tuarima, ngā āhuatanga kore-aukume me te kore-arataki. He maha ngā pūnaha tūnga taiaho e whakamahi ana i ngā puku motuka raina, e whakaputa ana i ngā papa aukume. Ka taunekeneke te turanga mīhini ferromagnetic ki ēnei papa, ka puta he raruraru kaha, ā, ka puta pea he nekehanga whakatikatika i te huringa o te hītori aukume o te rauemi. Ko te āhua kore-aukume, kore-arataki o te karāhe ka whakakore katoa i ēnei taunekeneke.
Ngā Pūnaha Taiaho Femtosecond: Ngā Hiahia Tino Nui mō te Tūnga Tika
Ka whakaputahia e ngā taiaho femtosecond he poto ake i te 1 pikohekona — he piriona hauwhā o te miriona hauwhā o te hekona. I ēnei wā, he rerekē rawa te taunekeneke taiaho-matū i te tukatuka taiaho tuku iho: ka tere te tango i te rauemi, kāore he wā e horapa ai te wera ki roto i te rauemi e karapoti ana, ka taea te tapahi tika me ngā rohe e pāngia ana e te wera inehia i roto i ngā nanometa kaua i roto i ngā mirimita.
Ka whakamahia tēnei āheinga i roto i te pokanga kornea (LASIK), te miihini iti tika o ngā wāhanga hiko, te hanganga o ngā rauemi mō ngā tono photonics, me te whakaputa i te hihi ultraviolet tino nui (EUV) mō te lithography o te whakatupuranga e whai ake nei. I ia tono, me whakahaere te tūranga o te arotahi laser e pā ana ki te wahi mahi ki ngā manawanui e rite ana ki te rahi o te ira o te laser — he maha ngā wā 1–10 micrometers.
Nō reira, me tutuki te pūnaha tūnga mō te atamira mahi taiaho femtosecond i te tika o te 1–10 μm i runga i ngā awhe haere ka toro atu ki te 300 mm, neke atu rānei — he awhe hihiri o te 1:30,000, neke atu rānei. Me mahi pērā me te pumau tere kia rite te kaha ki te whakaputa i ngā hohonutanga āhuatanga ōrite puta noa i te mahi. Ā, me tutuki tēnei i roto i tētahi kete kiato, hototahi ki te rūma ma e hono ana ki te pūnaha tuku whatu taiaho.
Ka ea ēnei whakaritenga katoa i ngā papa karāhe hau. Ka whakaratohia e te hau te nekehanga maeneene, kore-waku e hiahiatia ana mō te tere ōrite. Ka whakaratohia e te turanga karāhe te papatahi me te pakari e hiahiatia ana mō te tika. Ka pupuri te pumau wera o te pūnaha whakakotahi i te āhua o te taiaho-ki-te-mahi i te mea ka mahana ake te taputapu, ka eke ki te taurite.
Ngā Pūnaha Taiaho Pikohekona i roto i te Hanganga Hiko
Kei waenganui ngā rēseri picosecond i ngā rēseri nanosecond (pāorooro noa) me ngā rēseri femtosecond i runga i te roa o te pāorooro me ngā āhuatanga tukatuka. He whānuitia te whakamahinga o ēnei rēseri i roto i te hanga hikohiko mō ngā tono tae atu ki te PCB mā te keri, te tuhi rēseri o ngā pūtau hikohiko angiangi, te tapahi karāhe me te hapaira mō ngā hikohiko kaihoko, me te tohu me te waehere whai i ngā wāhanga hikohiko.
I roto i ēnei tono ahumahi, he mea nui te kaha o te rere — me tere te neke o te pūnaha tūnga i waenga i ngā āhuatanga me te pupuri tonu i te tika e hiahiatia ana hei patu i ngā ūnga i te tūranga tika. Ko te huinga o te tere teitei me te tika teitei te mea e arotauhia ana ngā papa karāhe hau: ka taea e ngā peera hau te tere teitei me te kore he hapa tere i puta mai i te waku, ko te pakari me te whakaiti o te karāhe ka ārai i ngā haruru miihini ka whakawhāiti i te tika i te tere teitei.
Ko tētahi atu painga i roto i ngā taiao hanga hikohiko ko te kaha o te pūnaha whāriki hau i roto i ngā piriona huringa nekehanga. Ka kohia e te mīhini keri PCB e tukatuka ana i ngā mano o ngā papa ia rā he maha ngā huringa i roto i tōna roanga mahi. Ko te āhuatanga kore-kakahu o ngā whāriki hau ko te tika o te pūnaha i te tau rima he rite tonu ki te rā tuatahi - he āhuatanga kāore e taea te whakataurite e ngā whāriki huānga hurihuri, e whakaatu ana i te kakahu haere me te heke haere o te tika i roto i te wā.
Ngā Wero me ngā Otinga Whakauru
Ko te whakauru i tētahi atamira karāhe hau ki roto i tētahi pūnaha tika taiaho he maha ngā whakaaro hangarau e pā ana ki tua atu i te atamira tonu. Me tuku hau ma, maroke i te pēhanga whakahaeretia — ko te tikanga kua tātarihia ki te ma o te Akomanga 0 me te whakahaere-pēhanga ki te ±0.1%, pai ake rānei. Kaua te pūnaha tuku hau e whakauru i ngā wiri, i ngā pāorooro pēhanga rānei e horapa ana ki roto i te atamira. Mā te whakahaere pāmahana o te tuku hau ka ārai i ngā pānga whānui wera i te mea ka haere te hau kōpeke i roto i te pūnaha.
Me whakairi me te tautoko i te turanga o te karāhe i runga i te huarahi e mau tonu ai tōna papatahi i raro i te kawenga. Ko te whakairinga kinematic — mā te whakamahi i ngā pūwāhi tautoko e toru kua whakaritea hei ārai i te piko rawa — he mahi noa iho. Me pumau ngā hanganga tautoko ki te wera me te wehe atu i te wiri mai i te papa o te whare.
Ko te whakahaere taura mō ngā tuaka nekehanga — te arahi i ngā taura hiko, ngā tohu encoder, ngā raina hau, me ngā raina korehau ki te atamira neke me te kore e whakauru i ngā kaha e whakararuraru ana i te tūranga o te atamira — me āta hoahoa. Ka whakakorehia e ngā motuka raina taraiwa-tika o ēnei rā ngā pouaka miihini me ngā tīwiri taraiwa, ka whakaitihia anō ngā whakararuraru kaha kāore e taea te whakahoki e whakaiti ana i te tika o te tūnga.
Whakamutunga
Ko ngā papa karāhe hau e whakaatu ana i tētahi rapunga whakaaro hoahoa: whiriwhiria te otinga pai rawa atu mō ia whakaritenga hangarau, ahakoa ka puta mai taua otinga i tētahi huarahi ohorere. Ka whakatauhia e ngā peera hau te waku me te kakahu i te tauine nanometer i ngā huarahi e kore e taea e ngā peera miihini. Ka whakatauhia e te karāhe te pumau o ngā āhuatanga, te whakaiti i te wiri, me te kounga o te mata i ngā huarahi e kore e taea e ngā konganuku - i te iti rawa me te kore he utu nui me te uaua.
Kua whakamātauhia tēnei huinga i roto i ngā tekau tau o te whakamahinga i roto i ngā pūnaha taiaho tino tika o te ao. I te haere tonu o te whanaketanga o te hangarau taiaho — ki ngā pao poto ake, ngā rahi ira iti ake, me ngā manawanui tukanga kikī ake — me anga whakamua ngā wāhanga karāhe e tautoko ana i aua pūnaha i te taha o rātou. Ko ngā kaihanga e kaha ana ki te tuku i te tika e hiahiatia ana, kua manatokohia, kua whakamanahia hoki, ka noho tonu hei hoa mahi nui i roto i te whanaketanga o te hangarau taiaho.
Wā tuku: Pipiri-30-2026