I te rā nei, i panuitia e ngā kairangahau i CRANN (Te Pokapū Rangahau mō ngā Hanganga Nano me ngā Pūrere Nano Adaptive), me te Kura Ahupūngao i te Kāreti o Trinity i Dublin, herauemi aukumei whakawhanakehia i te Pokapū e whakaatu ana i te pana aukume tere rawa atu kua tuhia.
I whakamahia e te tīma ngā pūnaha taiaho femtosecond i roto i te Whare Rangahau Photonics i CRANN hei whakawhiti, kātahi ka huri anō i te aronga aukume o ā rātou rauemi i roto i ngā tiriona o te hēkona, e ono ngā wā tere atu i te rekoata o mua, ā, kotahi rau ngā wā tere atu i te tere karaka o tētahi rorohiko whaiaro.
E whakaatu ana tēnei kitenga i te pūmanawa o te rauemi mō tētahi whakatupuranga hou o ngā rorohiko tino tere me ngā pūnaha rokiroki raraunga e penapena ana i te pūngao.
I tutuki i ngā kairangahau ō rātou tere whakawhiti korekore i roto i tētahi koranu e kiia nei ko te MRG, i hangaia tuatahitia e te rōpū i te tau 2014 mai i te manganese, te ruthenium me te gallium. I roto i te whakamātautau, i hangaia e te tīma ngā kiriata angiangi o te MRG me ngā pahūtanga o te mārama taiaho whero, e tuku ana i te megawatts o te mana i roto i te iti iho i te piriona o te hēkona.
Ka hurihia te aronga aukume o te MRG e te whakawhiti wera. E hiahiatia ana he tere whakaharahara o te whakatekau o te pikohekona hei whakatutuki i tēnei huringa tuatahi (1 ps = kotahi tiriona o te hekona). Engari, ko te mea nui ake, i kitea e te tīma ka taea e rātou te huri anō i te aronga i muri i te 10 tiriona o te hekona. Koinei te hurihanga tere rawa atu o te aronga o te aukume kua kitea.
Kua whakaputaina ā rātou hua i tēnei wiki i roto i te hautaka ahupūngao matua, Physical Review Letters.
Mā tēnei kitenga ka huaki pea ngā huarahi hou mō te rorohiko auaha me te hangarau mōhiohio, i te mea he mea nui terauemi aukumei roto i tēnei umanga. Kei roto i te nuinga o ā tātou taputapu hiko, tae atu ki ngā pokapū raraunga nui i waenganui o te ipurangi, ka pānuihia, ka rongoatia hoki ngā raraunga e ngā rauemi aukume. Ko te pahūtanga o ngā mōhiohio o nāianei ka whakaputa ake i ngā raraunga me te whakapau kaha nui atu i mua. Ko te kimi huarahi hou e whai hua ana ki te pūngao hei whakahaere i ngā raraunga, me ngā rauemi hei taurite, he mahi rangahau puta noa i te ao.
Ko te kī ki te angitu o ngā tīma Trinity ko tō rātou kaha ki te whakatutuki i te whakawhiti tere rawa me te kore he papa aukume. Ko te whakawhiti tuku iho o te aukume ka whakamahi i tētahi atu aukume, he utu nui tēnei mō te pūngao me te wā. Mā te MRG ka tutuki te whakawhiti mā te whakamahi i te pāhekoheko wera, mā te whakamahi i te taunekeneke ahurei o te rauemi ki te mārama.
Ka matapakihia e Jean Besbas rāua ko Karsten Rode, ngā kairangahau o Trinity, tētahi huarahi o te rangahau:
"Rauemi aukumeKei a rātou te mahara ka taea te whakamahi mō te arorau. Tae noa ki tēnei wā, ko te whakawhiti mai i tētahi āhua aukume 'arorau 0' ki tētahi atu 'arorau 1' he tino hiakai-pūngao, he puhoi rawa hoki. E aro ana tā mātou rangahau ki te tere mā te whakaatu ka taea e mātou te whakawhiti MRG mai i tētahi āhua ki tētahi atu i roto i te 0.1 pikohekona, ā, ko te mea nui ko te whakawhiti tuarua ka taea te whai i te 10 pikohekona i muri mai, e rite ana ki te auau mahi o ~ 100 gigahertz—tere ake i tetahi mea i kitea i mua.
"E whakaatu ana te kitenga i te kaha motuhake o tā mātou MRG ki te hono pai i te mārama me te takahuri kia taea ai e mātou te whakahaere i te aukumetanga ki te mārama me te mārama ki te aukumetanga i ngā wā kāore anō kia tutukihia i mua."
I tana kōrero mō te mahi a tana tīma, i mea a Ahorangi Michael Coey, o te Kura Ahupūngao o Trinity me CRANN, "I te tau 2014 i te wā i whakapuaki tuatahi ai māua ko taku tīma kua hangaia e mātou he koranu hou o te manganese, te ruthenium me te gallium, e mōhiotia ana ko te MRG, kāore mātou i whakaaro he pūmanawa magneto-optical whakamiharo tēnei rauemi."
"Mā tēnei whakaaturanga ka hua ake he ariā taputapu hou e ahu mai ana i te mārama me te aukume ka taea te whai hua mai i te tere me te whai hua o te pūngao, ā, i te mutunga ka taea te whakatutuki i tētahi taputapu kotahi e honoa ana te mahara me te mahi arorau. He wero nui tēnei, engari kua whakaaturia e mātou he rauemi ka taea ai. Ko tā mātou tumanako ka whiwhi pūtea me te mahi tahi a te ahumahi hei whai i tā mātou mahi."
Wā tuku: Mei-05-2021