I ngā tau tata nei, kua whakamahia e ngā kairangahau o ngā whenua rerekē ngā hangarau whakaahua whakauru hei whakatinana i te whakahaere i ngā ngaru mārama infrared me te whakamahi i aua mea ki ngā whatunga 5G tere-teitei, ngā pūoko maramara, me ngā waka motuhake. I tēnei wā, me te hohonu haere tonu o tēnei huarahi rangahau, kua tīmata ngā kairangahau ki te mahi i te kimi hōhonu i ngā roopu mārama poto e kitea ana, me te whakawhanake i ngā tono whānui ake, pērā i te LIDAR taumata-maramara, ngā mōhiti AR/VR/MR (whakarei ake/mariko/ranu) Reality), ngā whakaaturanga holographic, ngā maramara tukatuka kuantum, ngā tirotiro optogenetic kua whakatōkia ki roto i te roro, me ētahi atu.
Ko te whakaurunga whānui o ngā kaiwhakatikatika ā-wāhanga whatu te kaupapa matua o te pūnaha whatu mō te ara whatu i runga i te maramara me te hanga i te mata o te ngaru wāhi-kore. He mea nui ēnei mahi matua e rua mō te whakatinanatanga o ngā tono maha. Heoi, mō ngā kaiwhakatikatika ā-wāhanga whatu i roto i te awhe mārama e kitea ana, he tino uaua ki te whakatutuki i ngā whakaritenga o te tuku tere me te whakatikatika tere i te wā kotahi. Hei whakatutuki i tēnei whakaritenga, ahakoa ko ngā rauemi silicon nitride me te lithium niobate e tino tika ana me whakanui ake i te rōrahi me te whakamahinga hiko.
Hei whakaoti i tēnei raruraru, i hangaia e Michal Lipson rāua ko Nanfang Yu o Te Whare Wānanga o Columbia tētahi kaiwhakatikatika āhua thermo-optic silicon nitride i runga i te resonator mowhiti moroiti adiabatic. I whakamātauhia e rāua ka mahi te resonator mowhiti moroiti i roto i te āhua hononga kaha. Ka taea e te taputapu te whakatutuki i te whakatikatika āhua me te iti o te ngaronga. Ki te whakatauritea ki ngā kaiwhakatikatika āhua arataki ngaru noa, he iti rawa te whakaiti i te wāhi me te whakapaunga hiko o te taputapu. Kua whakaputaina ngā ihirangi e pā ana ki roto i te Nature Photonics.
I mea atu a Michal Lipson, he tohunga matua i roto i te mara o te photonics whakauru, i runga i te silicon nitride: "Ko te mea nui ki tā mātou otinga kua whakaarohia ko te whakamahi i tētahi resonator whatu me te mahi i roto i te āhua hononga kaha e kiia nei."
He hanganga tino ōrite te pūoro whatu, ka taea te huri i tētahi panonitanga iti o te taupū whakaata hei panonitanga āhua mā roto i ngā huringa maha o ngā hihi mārama. I te nuinga o te wā, ka taea te wehewehe kia toru ngā āhua mahi: "hononga i raro i te hononga" me te "hononga i raro i te hononga". Hononga nui me te "hononga kaha." I roto i ēnei, ka taea e te "hononga i raro i te hononga" te whakarato i te whakarerekētanga āhua iti noa iho, ā, ka puta mai ngā panonitanga whānui kore e tika, ā, ka puta he ngaronga whatu nui i te "hononga nui", ka pā ki te mahi tuturu o te taputapu.
Hei whakatutuki i te whakarerekētanga wāhanga 2π katoa me te iti o te huringa whānui, i whakahaerehia e te tīma rangahau te mowhiti moroiti i roto i te āhua "hononga kaha". Ko te kaha hononga i waenga i te mowhiti moroiti me te "pahi" he tekau ngā wā teitei ake i te ngaronga o te mowhiti moroiti. Whai muri i te raupapa o ngā hoahoa me te arotautanga, ka whakaaturia te hanganga whakamutunga i te ahua i raro nei. He mowhiti haruru tēnei me te whānui whakarara. Ka whakapai ake te wāhanga arataki ngaru whaiti i te kaha hononga whatu i waenga i te "pahi" me te koiri moroiti. Ko te wāhanga arataki ngaru whānui Ka whakaitihia te ngaronga mārama o te mowhiti moroiti mā te whakaiti i te marara whatu o te pakitara taha.
I mea atu anō a Heqing Huang, te kaituhi tuatahi o te pepa: "Kua hangaia e mātou he pūwhakarerekētanga marama kitea iti, he penapena pūngao, he tino iti te ngaronga, he 5 μm anake te radius me te 0.8 mW anake te kaha o te pūwhakarerekētanga π-wāhanga. He iti iho i te 10% te rerekētanga whānui i whakaurua mai. Ko te mea onge ake ko te whai huatanga o tēnei pūwhakarerekētanga mō ngā roopu kikorangi me te kakariki tino uaua i roto i te whānuitanga e kitea ana."
I kī atu anō a Nanfang Yu ahakoa kei tawhiti tonu rātou i te taumata o te whakaurunga o ngā hua hiko, kua tino whakawhāitihia e ā rātou mahi te āputa i waenga i ngā pana photonic me ngā pana hiko. "Mēnā i whakaaetia e te hangarau modulator o mua te whakaurunga o te 100 ngaru-aratohu wāhanga modulators i runga i te tapuwae maramara me te tahua mana, kāti ka taea e tātou te whakauru i te 10,000 nga nekehanga wāhanga ki runga i te maramara kotahi hei whakatutuki i te Mahi uaua ake."
I roto i te poto, ka taea te whakamahi i tēnei tikanga hoahoa ki ngā kaiwhakatikatika hiko-whatu hei whakaiti i te wāhi e nohoia ana me te whakapaunga hiko. Ka taea hoki te whakamahi i roto i ētahi atu awhe hihi me ētahi atu hoahoa resonator rerekē. I tēnei wā, kei te mahi tahi te tīma rangahau ki te whakaatu i te LIDAR hihi kitea i titoa mai i ngā rarangi nekehanga ā-wāhanga i runga i aua mowhiti moroiti. I te heke mai, ka taea hoki te whakamahi ki ngā tono maha pēnei i te whakarei ake i te kore-raina whatu, ngā taiaho hou, me ngā whatu kuantum hou.
Pūtake tuhinga: https://mp.weixin.qq.com/s/O6iHstkMBPQKDOV4CoukXA
Kei roto i te "Silicon Valley" o Haina a Beijing Rofea Optoelectronics Co., Ltd. – Beijing Zhongguancun, he umanga hangarau teitei e whakatapua ana ki te mahi ki ngā whare rangahau o roto me tāwāhi, ngā whare rangahau, ngā whare wānanga me ngā kaimahi rangahau pūtaiao hinonga. Ko te nuinga o tā mātou kamupene he rangahau me te whakawhanake motuhake, te hoahoa, te hanga, te hoko hua optoelectronic, ā, e whakarato ana i ngā otinga auaha me ngā ratonga ngaio, whaiaro mō ngā kairangahau pūtaiao me ngā miihini ahumahi. Whai muri i ngā tau o te auahatanga motuhake, kua hangaia he raupapa hua photoelectric whai rawa me te tino pai, e whakamahia whānuitia ana i roto i ngā umanga ā-rohe, hōia, kawe waka, hiko, pūtea, mātauranga, hauora me ētahi atu ahumahi.
Kei te tumanako mātou ki te mahi tahi me koe!
Wā tuku: Maehe-29-2023