ʻO ka pūnaʻi kamaʻilio Optical, ultra-thin optical resonator

ʻO ka pūnaʻi kamaʻilio Optical, ultra-thin optical resonator
Hiki i nā resonator Optical ke hoʻokaʻawale i nā lōʻihi hawewe o nā nalu māmā i kahi palena palena, a loaʻa iā ia nā noi koʻikoʻi i ka launa pū ʻana o nā mea māmā,kamaʻilio ʻike maka, ʻike maka, a me ka hoʻohui ʻana. ʻO ka nui o ka resonator e hilinaʻi nui ʻia i nā ʻano mea a me ka lōʻihi o ka hana, no ka laʻana, ʻo nā resonator silicon e hana ana i ka hui infrared kokoke e koi pinepine i nā hale optical o nā haneli nanometer a ma luna. I kēia mau makahiki i hala iho nei, ua ʻike nui ʻia nā resonator optical planar ultra-thin ma muli o kā lākou mau noi i ke kala kala, holographic imaging, light field regulation a me nā mea optoelectronic. Pehea e hoʻemi ai i ka mānoanoa o nā resonator planar kekahi o nā pilikia paʻakikī i ʻike ʻia e nā mea noiʻi.
ʻOkoʻa mai nā mea semiconductor kuʻuna, nā insulators topological 3D (e like me ka bismuth telluride, antimony telluride, bismuth selenide, a me nā mea ʻē aʻe) he mau mea ʻike hou me ka topologically protected metal surface states and insulator states. Mālama ʻia ka mokuʻāina e ka symmetry o ka hoʻololi ʻana o ka manawa, a ʻaʻole i hoʻopuehu ʻia kāna mau electrons e nā haumia non-magnetic, nona nā manaʻo noi nui i ka haʻahaʻa haʻahaʻa quantum computing a me nā mea spintronic. I ka manawa like, hōʻike pū nā mea insulator topological i nā waiwai optical maikaʻi loa, e like me ke kiʻekiʻe refractive index, nui nonlinear.opticalcoefficient, ka laulā hana ākea, tunability, maʻalahi hoʻohui, a me nā mea ʻē aʻe, e hāʻawi i kahi kahua hou no ka hoʻokō ʻana i ka hoʻoponopono māmā anā mea hana optoelectronic.
Ua manaʻo kekahi hui noiʻi ma Kina i kahi ala no ka hana ʻana i nā resonator optical ultra-thin ma o ka hoʻohana ʻana i kahi nui e ulu ana i ka bismuth telluride topological insulator nanofilms. Hōʻike ka lua opua i nā hiʻohiʻona absorption resonance ma kahi kokoke i ka pahu infrared. Loaʻa i ka Bismuth telluride kahi huaʻōlelo refractive kiʻekiʻe loa ma mua o 6 i loko o ka puʻupuʻu kamaʻilio optical (ʻoi aku ka kiʻekiʻe ma mua o ka helu refractive o nā mea hoʻohālikelike kiʻekiʻe kiʻekiʻe e like me ke silikoni a me ka germanium), i hiki i ka mānoanoa o ka optical cavity ke hiki i ka iwakāluakūmālua o ka resonance. lōʻihi nalu. I ka manawa like, waiho ʻia ka resonator optical ma kahi aniani photonic hoʻokahi-dimensional, a ʻike ʻia ka hopena electromagnetically induced transparency i loko o ka hui kamaʻilio optical, ʻo ia ke kumu o ka hui ʻana o ka resonator me ka Tamm plasmon a me kona hoʻopilikia ʻino. . ʻO ka pane spectral o kēia hopena e pili ana i ka mānoanoa o ka resonator optical a paʻa i ka hoʻololi ʻana o ka index refractive ambient. Ke wehe nei kēia hana i kahi ala hou no ka hoʻokō ʻana o ka ultrathin optical cavity, topological insulator material spectrum regulation a me nā mea optoelectronic.
E like me ka hoike ana ma ka FIG. ʻO 1a a me 1b, ʻo ka resonator optical ka mea nui o kahi bismuth telluride topological insulator a me nā nanofilms kālā. ʻO nā nanofilm bismuth telluride i hoʻomākaukau ʻia e ka magnetron sputtering he wahi nui a me ka palahalaha maikaʻi. I ka 42 nm a me 30 nm ka mānoanoa o ka bismuth telluride a me nā kiʻi kālā, e hōʻike ana ka lua opua i ka absorption resonance ikaika i ka hui o 1100 ~ 1800 nm (Figure 1c). I ka hoʻohui ʻana o ka poʻe noiʻi i kēia lua optical ma luna o kahi aniani photonic i hana ʻia me nā ʻāpana ʻokoʻa o nā papa Ta2O5 (182 nm) a me SiO2 (260 nm) (Figure 1e), ua ʻike ʻia kahi awāwa absorption (Figure 1f) kokoke i ke kiʻekiʻe o ka resonant absorption peak (~ 1550 nm), ka mea like me ka electromagnetically induced transparency hopena i hana ʻia e nā ʻōnaehana atomika.

Hōʻike ʻia ka mea bismuth telluride e ka microscopy electron transmission a me ka ellipsometry. FIG. Hōʻike ka 2a-2c i nā micrographs electron (nā kiʻi hoʻonā kiʻekiʻe) a me nā ʻano hoʻohālike electron diffraction i koho ʻia o nā nanofilm bismuth telluride. Hiki ke ʻike ʻia mai ke kiʻi ʻana he mau mea polycrystalline ka bismuth telluride nanofilms i hoʻomākaukau ʻia, a ʻo ke kumu ulu nui ʻo (015) mokulele aniani. Hōʻike ke Kiʻi 2d-2f i ka ʻenekene refractive paʻakikī o bismuth telluride i ana ʻia e ka ellipsometer a me ka mokuʻāina i hoʻopili ʻia a me ka papa kuhikuhi paʻakikī paʻakikī. Hōʻike nā hopena i ʻoi aku ka nui o ka coefficient extinction o ka mokuʻāina ma mua o ka refractive index ma ka laulā o 230 ~ 1930 nm, e hōʻike ana i nā ʻano metala. ʻOi aku ka helu helu refractive o ke kino ma mua o 6 ke ʻoi aku ka lōʻihi o ka nalu ma mua o 1385 nm, ʻoi aku ka kiʻekiʻe ma mua o ka silicon, germanium a me nā mea kikoʻī kuʻuna kiʻekiʻe-refractive index i loko o kēia pūʻulu, kahi e hoʻokumu ai i ke kumu no ka hoʻomākaukau ʻana i ka ultra. - nā resonator optical lahilahi. Hōʻike ka poʻe noiʻi ʻo kēia ka hōʻike mua i hōʻike ʻia o kahi topological insulator planar optical cavity me ka mānoanoa o nā ʻumi nanometers wale nō i ka hui kamaʻilio optical. Ma hope iho, ua ana ʻia ke kikoʻī absorption a me ka lōʻihi o ka hawewe resonance o ka lua optical ultra-thin me ka mānoanoa o bismuth telluride. ʻO ka mea hope loa, ua noiʻi ʻia ka hopena o ka mānoanoa kiʻiʻoniʻoni kālā ma ka electromagnetically induced transparency spectra in bismuth telluride nanocavity/photonic crystal structures.

Ma ka hoʻomākaukau ʻana i nā kiʻi ʻoniʻoni ʻoniʻoni palahalaha o ka bismuth telluride topological insulators, a me ka hoʻohana ʻana i ka huahelu refractive ultra-kiʻekiʻe o nā mea Bismuth telluride ma kahi kokoke i ke kaula infrared, loaʻa kahi lua optical planar me ka mānoanoa he ʻumi wale nō nanometer. Hiki ke hoʻomaopopo i ka hoʻoheheʻe ʻana o ka māmā resonant i ka pahu infrared kokoke, a loaʻa iā ia ka waiwai noi nui i ka hoʻomohala ʻana i nā mea optoelectronic i ka hui kamaʻilio optical. ʻO ka mānoanoa o ka bismuth telluride optical cavity he linear i ka hawewe resonant, a ʻoi aku ka liʻiliʻi ma mua o ka lua silicon like a me germanium optical cavity. I ka manawa like, ua hoʻohui ʻia ka lua o ka bismuth telluride me ka kristal photonic e hoʻokō i ka hopena optical anomalous e like me ka electromagnetically induced transparency o ka ʻōnaehana atom, e hāʻawi ana i kahi ala hou no ka hoʻoponopono spectrum o microstructure. He kuleana ko kēia haʻawina i ka hoʻolaha ʻana i ka noiʻi ʻana o nā mea insulator topological i ka hoʻoponopono māmā a me nā mea hana optical.