Publikationsdatum:
2016-08-02
Beschreibung:
Author(s): Z. Fei, M. E. Scott, D. J. Gosztola, J. J. Foley, IV, J. Yan, D. G. Mandrus, H. Wen, P. Zhou, D. W. Zhang, Y. Sun, J. R. Guest, S. K. Gray, W. Bao, G. P. Wiederrecht, and X. Xu The authors perform near-field nanoimaging of various waveguide modes inside thin flakes of WSe 2 by using state-of-the-art near-field scanning optical microscopy. This compound is a prototypical transition metal dichalcogenide with strongly bound excitons. The nanoimaging data provides direct evidence of strong coupling between waveguide photon modes and excitons. Such coupling generates hybrid polaritonic modes that are imaged for the first time as propagative modes in real space. This work uncovers in real space the physics of nanoscale light-matter interactions in van der Waals semiconductors and thus provides guidelines for future applications of this class of materials in nanophotonics and optoelectronics. [Phys. Rev. B 94, 081402(R)] Published Mon Aug 01, 2016
Schlagwort(e):
Surface physics, nanoscale physics, low-dimensional systems
Print ISSN:
1098-0121
Digitale ISSN:
1095-3795
Thema:
Physik
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