Izwe elisha leAmadivayisi we-Optoelectronic
Abaphenyi eTechtunal-Israel Institute of Technology bathuthukise i-spin elawulwa ngokuhlanganaI-Optical Laserkususelwa engxenyeni eyodwa ye-athomu. Lokhu kutholwa kwenziwa kwaba khona ukuxhumana okubumbene okubumbene phakathi kwe-atomic ye-atomic eyodwa kanye ne-photonic spin lattice, esekela isigodi esiphakeme se-q spin ngokusebenzisa i-rashaba-thayipha spin skingget of the purtum.
Umphumela, oshicilelwe kwezinto zokwakha imvelo futhi uqokonyiswe ocwaningweni lwayo olufushane, uvala indlela yokucwaninga kwezehlakalo ezihlobene ne-spin ezihlobene ne-classical futhiizinhlelo ze-quantum, futhi ivula izindlela ezintsha zocwaningo eziyisisekelo kanye nokusetshenziswa kwe-elektroni ne-Photon spin kumadivayisi we-Optoelectronic. Umthombo we-spin optical uhlanganisa imodi ye-Photon ngenguquko ye-elektroni, enikeza indlela yokutadisha ukushintshaniswa kolwazi kwe-spin phakathi kwama-elektroni kanye nama-photon kanye nokwakha amadivayisi we-optoelectronic athuthukile.
I-SPIT Valley Optiny microcavitives yakhiwa ngama-Photoning Photonic Spin Lattices nge-Inversion Asymmetry (ephuzi isifunda esifundeni) kanye ne-invression symmetry (Cyan Cladding Region).
Ukuze wakhe le mithombo, imfuneko yokuqeda i-spin degeneracy phakathi kwama-spin aphambene aphikisanayo ePhoton noma ingxenye ye-electron. Lokhu kuvame ukutholwa ngokusebenzisa amandla kazibuthe ngaphansi kwe-fataday noma i-zeeman umphumela, yize lezi zindlela zivame ukudinga i-spourcemandla eqinile futhi ayikwazi ukukhiqiza i-schoolce. Enye indlela ethembisayo isuselwa ohlelweni lwekhamera yejometri esebenzisa amandla kazibuthe okufakelwa ukukhiqiza izizwe ezihlukaniswe yi-Photon ngesikhala.
Ngeshwa, ukubonwa kwangaphambilini kwama-spin split States kuthethelele kakhulu izindlela eziphansi zokusakazwa okuphansi, okubeka izingqinamba ezingezinhle ekuhlanganeni kwemithombo yendawo. Le ndlela ibuye ihlaselwe yimvelo elawulwa yi-spin ye-blocky laser-nzuzo ye-laser-nzuzo, engenakwenza noma engenakukwazi ukusetshenziselwa ukulawula ngenkuthaloImithombo ekhanyayo, ikakhulukazi lapho kungekho khona amasimu kazibuthe ekushiseni kwegumbi.
Ukufeza izizwe ezihlukanisayo eziphakeme-q, abaphenyi bakha ama-Photonic Spin Lattices nge-anymmetry ehlukile, okuhlanganiswe ne-Inversion Symmetric Envelope ehlanganiswe ne-WS2 LOLELELEKILE. I-asmmetric eyisisekelo ye-asymmetric latymmetric esetshenziswa ngabaphenyi inezakhiwo ezimbili ezibalulekile.
I-vexice ye-lattice ethembekile encithakalekile ebangelwa ukuguqulwa kwesigaba sejometri se-anisotropic enanoporous enobuhlakani babo. Le vector ihlukanisa i-Spin Deccuration Band ibe ngamagatsha amabili anama-spin-polarised endaweni yesikhashana, eyaziwa ngokuthi i-Photonic Rushberg Effect.
I-pair of high q symmetric (quasi) eboshwe e-Continuum, okungukuthi
USolwazi Koren waphawula: "Sisebenzise i-WS2 Monolides njengezinto zokuthola inzuzo ngoba leli bhendi le-band-gap metal diskulfide linesigodi se-pseudo se-pseudo esiyingqayizivele line-pseudo eyingqayizivele Ngokukhethekile, ama-expelions abo e-K 'K "Umthombo we-Optical.
Esigodini esihlanganisiwe se-spin Valley discley, i- "± k 'Valley Expelitons ihlanganiswa nesimo se-± k spin Valley Valley ngokufana, kanye neSpin Exciton Laser ekushiseni kwegumbi elinamandla. Ngasikhathi sinye,i-laserI-Medwaldway ishayela i-Stage-Inder-Independent ± k 'Valley Exengtons ukuthola isimo sokulahleka okuncane sohlelo bese setha kabusha ukuxhumeka kokukhiya okususelwa esigabeni sejometri okuphaphamele i- ± k spin Valley.
Ukuhlanzeka kwesigodi esiqhutshwa yile ndlela ye-laser kuqeda isidingo sokuvinjelwa kwezinga lokushisa okuphansi kokusakazeka kwezikhathi ezithile. Ngaphezu kwalokho, isimo sokulahleka okuncane kwe-Rashba Monayer Laser singalingiswa yi-Linear (Ciwunda) yephampu, enikeza indlela yokulawula ubukhulu be-laser nokuhlangana kwendawo. "
USolwazi Hadman uyachaza: "KwembuliwephotoI-SPIS Valley Rashba Effect ihlinzeka ngomshini ojwayelekile wokwakha imithombo ekhipha indawo ye-spin optical. Ukubumbana kwesigodi kuboniswe esigodini esihlanganisiwe se-spin Valley Microcavity kusiletha isinyathelo esisodwa esiseduze nokuthola ukufakwa kolwazi lwe-quantum phakathi kwama- ± k 'Valley Exesitons nge-qubits.
Isikhathi eside, iqembu lethu belisungule iSpin Optics, lisebenzisa i-Photon Spin njengethuluzi elisebenzayo lokulawula ukusebenza kwamagagasi e-electromagnetic. Ngo-2018, kwahlatshwa umxhwele isigodi pseudo-spin ezindaweni ezinezinto ezimbili, saqala umsebenzi wesikhathi eside ukuphenya ngokulawulwa okusebenzayo kwemithombo ye-athomu-scale spin optical lapho kungekho khona ama-magnetic. Sisebenzisa imodeli ye-Berry ye-Berry ye-Non-Local yendawo ukuxazulula inkinga yokuthola isigaba se-geometric ehambisanayo kusuka ku-Valley Valiton eyodwa.
Kodwa-ke, ngenxa yokuntuleka kwendlela eqinile yokuvumelanisa phakathi kwe-Excitons, umphambili onobuqili be-Multiple Valley Exeltons emthonjeni we-rashuba single-ungqimba umthombo ohleliwe uhlala ungalungiswa. Le nkinga isishukumisela ukuba sicabange nge-rashuba imodeli ye-q photons ephezulu. Ngemuva kokuthola izindlela ezintsha zomzimba, sisebenzise i-rashuba eyodwa laser laser echazwe kuleli phepha. "
Lokhu kufinyelelwa kuvula indlela yokucwaninga kwe-ecorents spin condisenation phenomena emasimini asendulo ne-quantum, futhi ivula indlela entsha yocwaningo oluyisisekelo nokusetshenziswa kwamadivayisi we-spiptronic ne-photoc optoelectronic.
Isikhathi sePosi: Mar-12-2024