ʻO kahi ʻano hou o terahertz multiplexer ua pāpālua i ka mana ʻikepili a ua hoʻonui nui i ke kamaʻilio 6G me ka bandwidth i ʻike ʻole ʻia a me ka haʻahaʻa haʻahaʻa.
Ua hoʻolauna ka poʻe noiʻi i kahi multixer terahertz band super-wide e pāpālua ana i ka mana ʻikepili a lawe mai i nā holomua kipi i ka 6G a i ʻole. (Kumu kiʻi: Getty Images)
Ke kamaʻilio uea ʻole o ka hanauna hou, i hōʻike ʻia e ka ʻenehana terahertz, hoʻohiki e hoʻololi i ka hoʻoili ʻikepili.
Ke hana nei kēia mau ʻōnaehana ma nā alapine terahertz, e hāʻawi ana i ka bandwidth like ʻole no ka hoʻouna ʻana i ka ʻikepili ultra-wikiwiki a me ke kamaʻilio. Eia nō naʻe, no ka ʻike piha ʻana i kēia hiki, pono e hoʻokō ʻia nā pilikia ʻenehana koʻikoʻi, ʻoi aku ka maikaʻi o ka mālama ʻana a me ka hoʻohana pono ʻana i ka spectrum i loaʻa.
Ua hoʻokō ka holomua holomua i kēia pilikia: ʻo ka ultra-wideband integrated terahertz polarization (de)multiplexer mua i ʻike ʻia ma luna o kahi kahua silikona substrate-free.
Hoʻolālā kēia hoʻolālā hou i ka sub-terahertz J band (220-330 GHz) a manaʻo e hoʻololi i ke kamaʻilio no 6G a ma waho. Hoʻopālua ka mea hana i ka mana ʻikepili me ka mālama ʻana i ka helu haʻahaʻa haʻahaʻa haʻahaʻa, e hoʻokaʻawale ana i ke ala no nā pūnaewele uea ʻole kiʻekiʻe.
ʻO ka hui ma hope o kēia milestone e komo pū ana ʻo Professor Withawat Withayachumnankul mai ke Kulanui o Adelaide's School of Electrical and Mechanical Engineering, Dr. Weijie Gao, i kēia manawa he mea noiʻi postdoctoral ma Osaka University, a me Professor Masayuki Fujita.
Ua ʻōlelo ʻo Polofesa Withayachumnankul, "ʻO ka polarization multiplexer i manaʻo ʻia e hiki ke hoʻouna ʻia nā kahawai ʻikepili he nui i ka manawa like i loko o ka pahu alapine like, me ka hoʻopalua ʻana i ka mana ʻikepili." ʻO ka bandwidth pili i loaʻa e ka hāmeʻa ʻaʻole i loaʻa ma mua o kēlā me kēia alapine, e hōʻike ana i kahi lele nui no nā multiplexers i hoʻohui ʻia.
Pono nā polarization multiplexers i ke kamaʻilio hou ʻana no ka mea e hiki ai i nā hōʻailona he nui ke kaʻana like i ka band frequency like, me ka hoʻonui nui ʻana i ka hiki ke kahawai.
Hoʻokō ka mea hou i kēia ma o ka hoʻohana ʻana i nā conical directional couplers a me ka anisotropic effective medium cladding. Hoʻonui kēia mau ʻāpana i ka birefringence polarization, ka hopena i kahi kiʻekiʻe polarization extinction ratio (PER) a me ka bandwidth ākea - nā hiʻohiʻona nui o nā ʻōnaehana kamaʻilio terahertz maikaʻi.
ʻAʻole like me nā hoʻolālā kuʻuna e hilinaʻi nei i nā alakaʻi nalu asymmetric paʻakikī a hilinaʻi pinepine, hoʻohana ka multiplexer hou i ka pale anisotropic me ka liʻiliʻi liʻiliʻi. Hoʻohana piha kēia ala i ka bandwidth nui i hāʻawi ʻia e nā conical couplers.
ʻO ka hopena, he bandwidth fractional kokoke i 40%, he awelika PER ma mua o 20 dB, a me kahi poho hoʻokomo liʻiliʻi ma kahi o 1 dB. ʻOi aku ka nui o kēia mau mea hana i nā hoʻolālā optical a me ka microwave i kēia manawa, ka mea pinepine i ka bandwidth haiki a me ka pohō kiʻekiʻe.
ʻAʻole hoʻonui wale ka hana a ka hui noiʻi i ka pono o nā ʻōnaehana terahertz akā hoʻokumu pū i ke kumu no kahi au hou o ke kamaʻilio kelepona. Ua ʻōlelo ʻo Kauka Gao, "ʻO kēia mea hou he mea hoʻokele koʻikoʻi i ka wehe ʻana i ka hiki ke kamaʻilio terahertz." Loaʻa nā noi i ka hoʻoheheʻe wikiō wehewehe kiʻekiʻe, hoʻonui ʻia ka ʻoiaʻiʻo, a me nā ʻoihana pūnaewele e like me 6G.
ʻO nā hoʻonā hoʻokele polarization terahertz kuʻuna, e like me nā orthogonal mode transducers (OMTs) e pili ana i nā alakaʻi nalu metala ʻehā, e alo i nā palena nui. ʻIke nā alakaʻi nalu metala i ka hoʻonui ʻana i nā poho ohmic i nā alapine kiʻekiʻe, a paʻakikī kā lākou hana hana ma muli o nā koi geometric stringent.
ʻO nā mea hoʻonui polarization Optical, me ka poʻe e hoʻohana ana i nā interferometers Mach-Zehnder a i ʻole photonic crystals, hāʻawi i ka hoʻohui maikaʻi a me nā poho haʻahaʻa akā koi pinepine i nā kālepa-offs ma waena o ka bandwidth, compactness, a me ka hana paʻakikī.
Hoʻohana nui ʻia nā mea hoʻohui kuhikuhi i nā ʻōnaehana optical a koi i ka birefringence polarization ikaika e hoʻokō i ka nui compact a me ka PER kiʻekiʻe. Eia naʻe, ua kaupalena ʻia lākou e ka bandwidth liʻiliʻi a me ka naʻau i ka hana ʻana i ka hoʻomanawanui.
Hoʻohui ka multiplexer hou i nā pōmaikaʻi o nā conical directional couplers a me ka hoʻopaʻa ʻana ma waena o ka pono, e lanakila ana i kēia mau palena. Hōʻike ka pale anisotropic i ka birefringence koʻikoʻi, e hōʻoia ana i ka PER kiʻekiʻe ma waena o kahi bandwidth ākea. Hōʻike kēia kumumanaʻo hoʻolālā i ka haʻalele ʻana i nā ʻano kuʻuna, e hāʻawi ana i kahi hopena scalable a kūpono no ka hoʻohui terahertz.
Ua hōʻoia ka hōʻoia hoʻokolohua o ka multiplexer i kāna hana ʻokoʻa. Hoʻohana maikaʻi ka mea hana ma ka laulā 225-330 GHz, e loaʻa ana i kahi bandwidth fractional o 37.8% ʻoiai e mālama ana i kahi PER ma luna o 20 dB. ʻO kona nui paʻa a me kona kūlike me nā kaʻina hana maʻamau e kūpono ia no ka hana nui.
Ua ʻōlelo ʻo Dr. Gao, "ʻAʻole kēia mea hou e hoʻonui i ka pono o nā ʻōnaehana kamaʻilio terahertz akā ua hoʻolalelale i ke ala no ka ʻoi aku ka ikaika a hilinaʻi hoʻi i nā ʻoihana uila kiʻekiʻe."
ʻO nā mea hiki ke hoʻohana ʻia o kēia ʻenehana ma mua o nā ʻōnaehana kamaʻilio. Ma ka hoʻomaikaʻi ʻana i ka hoʻohana ʻana i ka spectrum, hiki i ka multiplexer ke alakaʻi i nā holomua i nā kahua e like me radar, imaging, a me ka Pūnaewele o nā Mea. "I loko o hoʻokahi ʻumi makahiki, manaʻo mākou e hoʻohana nui ʻia kēia mau ʻenehana terahertz a hoʻohui ʻia ma nā ʻoihana like ʻole," wahi a Professor Withayachumnankul.
Hiki ke hoʻohui pono ʻia ka multiplexer me nā mea hana beamforming mua i hoʻomohala ʻia e ka hui, e hiki ai i nā hana kamaʻilio holomua ma kahi kahua hui. Hōʻike kēia hoʻohālikelike i ka versatility a me ka scalability o ke kahua alakaʻi nalu dielectric medium-clad.
Ua paʻi ʻia nā ʻike noiʻi o ka hui ma ka puke pai ʻo Laser & Photonic Reviews, e hōʻike ana i ko lākou koʻikoʻi i ka holomua ʻana i ka ʻenehana terahertz photonic. Ua ʻōlelo ʻo Polofesa Fujita, "Ma ka lanakila ʻana i nā pale ʻenehana koʻikoʻi, manaʻo ʻia kēia hana hou e hoʻoulu i ka hoihoi a me ka hana noiʻi ma ke kula."
Manaʻo ka poʻe noiʻi e hōʻeuʻeu kā lākou hana i nā noi hou a me ka hoʻomaikaʻi ʻana i ka ʻenehana i nā makahiki e hiki mai ana, e alakaʻi ana i nā prototypes a me nā huahana.
Hōʻike kēia multiplexer i kahi hana nui i mua i ka wehe ʻana i ka hiki ke kamaʻilio terahertz. Hoʻonohonoho ia i kahi maʻamau hou no nā polokalamu terahertz i hoʻohui ʻia me kāna metric hana ʻike ʻole.
Ke hoʻomau nei ke koi ʻana i nā ʻoihana kamaʻilio kiʻekiʻe kiʻekiʻe, ʻo ia mau mea hou e hana koʻikoʻi i ka hana ʻana i ka wā e hiki mai ana o ka ʻenehana uila.
Ka manawa hoʻouna: Dec-16-2024