二维异质结构中的双曲声子极化激元电致发光.pdf

Hyperbolicphonon-polariton

electroluminescencein2Dheterostructures

1,2,3,9 ✉4,5,9 ✉1,912,36

/10.1038/s41586-025-08686-9QiushiGuo,IliyaEsin,ChengLi,ChenChen,GuanyuHan,SongLiu,

67841 ✉

JamesH.Edgar,SelinaZhou,EugeneDemler,GilRefaelFengnianXia

Received:10November2023

Accepted:22January2025

Phononpolaritonsarequasiparticlesresultingfromthecoherentcouplingofphotons

Publishedonline:19March2025

withopticalphononsinpolardielectrics1.Owingtotheirexceptionalabilitytoconfne

Checkforupdateselectricfeldstodeep-subwavelengthscaleswithlowloss,theyareuniquelypoised

toenableasuiteofapplicationsbeyondthereachofconventionalphotonics,suchas

subdifractionimaging2andnear-feldenergytransfer3–5.Theconventionalapproach

toexcitingphononpolaritonsthroughopticalmethods,however,involvescostly

lightsourcesalongwithnear-feldschemes6,7,andgenerallyleadstolowexcitation

efciencyowingtosubstantialmomentummismatchbetweenphononpolaritons

andfree-spacephotons.Herewedemo