Yoo D., F. de León-Pérez, M. Pelton, I.-H. Lee, D. Mohr, M.B. Raschke, J. Caldwell, L. Martín-Moreno, and S.-H. Oh, Nature Photonics 15, 125–130 (2020).
Olmon R.L., B. Slovick, T.W. Johnson, D.J. Shelton, S.-H. Oh, G.D. Boreman, and M.B. Raschke, Physical Review B 86, (2012).
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