Resonantly Increased Optical Frequency Conversion in Atomically Thin Black Phosphorus.

Autor: Rodrigues MJ; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore., de Matos CJ; MackGraphe - Graphene and Nanomaterials Research Center, Mackenzie Presbyterian University, Rua da Consolação 930, São Paulo, SP, 01302-907, Brazil., Ho YW; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore., Peixoto H; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore.; Centro de Física & Departamento de Física, Universidade do Minho, Campus de Gualtar, Braga, 4710-057, Portugal., de Oliveira RE; MackGraphe - Graphene and Nanomaterials Research Center, Mackenzie Presbyterian University, Rua da Consolação 930, São Paulo, SP, 01302-907, Brazil., Wu HY; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore., Neto AH; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore., Viana-Gomes J; Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2016 Dec; Vol. 28 (48), pp. 10693-10700. Date of Electronic Publication: 2016 Oct 18.
DOI: 10.1002/adma.201603119
Abstrakt: 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 laser thinning.
(© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
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