Ua hoʻomohala ʻia ka Waveguide i haku ʻia e ka tungsten disulfide e nā ʻenekinia ma ke Kulanui o Kaleponi ʻo San Diego a ʻekolu wale nō papa o nā atoms lahilahi a ʻo ia ka mea ʻike maka lahilahi loa ma ka honua! Ua hoʻopuka nā mea noiʻi i kā lākou ʻike ma ʻAukake 12 maNature Nanotechnology.

ʻO ke alakaʻi nalu hou, ma kahi o 6 angstroms (1 angstrom = 10^-10mika), 10,000 manawa ʻoi aku ka lahilahi ma mua o ka fiber maʻamau, a ma kahi o 500 mau manawa ʻoi aku ka lahilahi ma mua o kahi mea ʻike ma-chip i loko o kahi kaapuni photonic integrated. Loaʻa iā ia kahi papa hoʻokahi o ka tungsten disulfide i hoʻokuʻu ʻia ma ke kiʻi silika (kahi papa o nā ʻātoma tungsten i sandwiched ma waena o ʻelua mau ʻātoma sulfur), a ʻo ka papa hoʻokahi e hana i kahi aniani photonic mai nā ʻano nanopore.

He mea kūikawā kēia ʻāpana aniani hoʻokahi i ke kākoʻo ʻana i nā pālua electron-hole i kapa ʻia ʻo excitons, ma ka lumi wela, hoʻopuka kēia mau excitons i kahi pane optical ikaika e like me ka ʻehā mau manawa o ka index refractive o ka aniani a puni ka ʻili. ʻO ka ʻokoʻa, ʻaʻohe mea ʻē aʻe i like ka mānoanoa like ʻole i kahi kuhikuhi refractive kiʻekiʻe. I ka hele ʻana o ka mālamalama i loko o ke aniani, hopu ʻia ʻo ia i loko a alakaʻi ʻia ma ka mokulele e ka nānā ʻana i loko.

ʻO nā ala alakaʻi nalu i ke kukui ʻike ʻia kahi hiʻohiʻona kūikawā ʻē aʻe. Ua hōʻike mua ʻia ke alakaʻi nalu me ka graphene, ʻo ia hoʻi ka lahilahi atomically, akā ma nā lōʻihi nalu infrared. Ua hōʻike ka hui i ke alakaʻi nalu ma ka ʻāina ʻike ʻia. ʻO nā lua nanosized i kālai ʻia i loko o ka aniani e hiki ai i kekahi kukui ke hoʻopuehu pololei i ka mokulele i hiki ke nānā ʻia a nānā ʻia. Hoʻokumu kēia ʻano puka i kahi hanana manawa e hoʻolilo i ke aniani ʻelua ma ke ʻano he resonator pū kekahi.

Hoʻolilo ʻia kēia i ka resonator optical thinnest no ka mālamalama ʻike ʻia i hōʻike ʻia ma ka hoʻokolohua. ʻAʻole kēia ʻōnaehana e hoʻomaikaʻi wale i ka launa ʻana o nā mea māmā, akā lawelawe pū nō hoʻi ma ke ʻano he lua-kaupapa grating coupler e hoʻohui i ke kukui i loko o ke alakaʻi nalu optical.

Ua hoʻohana nā mea noiʻi i nā ʻenehana micro- a me nanofabrication kiʻekiʻe e hana i ka alakaʻi nalu. He mea paʻakikī loa ka hana ʻana i ka hale. He ʻano lahilahi ka mea, no laila, noʻonoʻo ka poʻe noiʻi i kahi kaʻina hana e hoʻopaneʻe iā ia ma ke kiʻi silika a hoʻohālike pololei me ka haki ʻole.

ʻO ka tungsten disulfide waveguide he mea hōʻoia o ka manaʻo no ka hoʻohaʻahaʻa ʻana i ka mea optical i nā nui i ʻoi aku ka liʻiliʻi ma mua o nā mea hana o kēia lā. Hiki iā ia ke alakaʻi i ka hoʻomohala ʻana i nā ʻāpana kiʻekiʻe kiʻekiʻe, kiʻekiʻe kiʻekiʻe kiʻekiʻe photonic chips.