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On page 10693, M. J. L. F. Rodrigues, C. J. S. de Matos and co‐workers show that optical frequency conversion via the nonlinear effect of third harmonic generation is resonantly enhanced in few‐layer black phosphorus. This enhancement is believed to be related to exciton resonances, as it is strongly correlated with exciton‐recombination photoluminescence. Few‐layer thicknesses are obtained both via...
Optical frequency conversion via the nonlinear effect of third harmonic generation is shown to be resonantly enhanced in few‐layer black phosphorus. This feature is believed to be a consequence of exciton‐related resonance, as the enhancement is strongly correlated with the observation of exciton‐recombination photoluminescence. Few‐layer thicknesses are obtained both via mechanical exfoliation and...
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