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dc.creatorFei, Z
dc.creatorScott, ME
dc.creatorGosztola, DJ
dc.creatorFoley, JJ
dc.creatorYan, J
dc.creatorMandrus, DG
dc.creatorWen, H
dc.creatorZhou, P
dc.creatorZhang, DW
dc.creatorSun, Y
dc.creatorGuest, JR
dc.creatorGray, SK
dc.creatorBao, W
dc.creatorWiederrecht, GP
dc.creatorXu, X
dc.date.accessioned2021-02-03T16:09:29Z
dc.date.available2021-02-03T16:09:29Z
dc.date.issued2016-08-01
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.doihttp://dx.doi.org/10.34944/dspace/5685
dc.identifier.otherDT3QF (isidoc)
dc.identifier.urihttp://hdl.handle.net/20.500.12613/5703
dc.description.abstract© 2016 American Physical Society. We report on a nano-optical imaging study of WSe2 thin flakes with scanning near-field optical microscopy (NSOM). The NSOM technique allows us to visualize in real space various waveguide photon modes inside WSe2. By tuning the excitation laser energy, we are able to map the entire dispersion of these waveguide modes both above and below the A exciton energy of WSe2. We found that all the modes interact strongly with WSe2 excitons. The outcome of the interaction is that the observed waveguide modes shift to higher momenta right below the A exciton energy. At higher energies, on the other hand, these modes are strongly damped due to adjacent B excitons or band-edge absorptions. The mode-shifting phenomena are consistent with polariton formation in WSe2.
dc.format.extent081402-
dc.language.isoen
dc.relation.haspartPhysical Review B
dc.relation.isreferencedbyAmerican Physical Society (APS)
dc.subjectcond-mat.mes-hall
dc.subjectcond-mat.mes-hall
dc.titleNano-optical imaging of WS e2 waveguide modes revealing light-exciton interactions
dc.typeArticle
dc.type.genreJournal Article
dc.relation.doi10.1103/PhysRevB.94.081402
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
dc.creator.orcidSun, Yugang|0000-0001-6351-6977
dc.date.updated2021-02-03T16:09:26Z
refterms.dateFOA2021-02-03T16:09:30Z


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