Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore, Singapore.
MackGraphe - Graphene and Nanomaterials Research Center, Mackenzie Presbyterian University, Rua da Consolação 930, São Paulo, SP, 01302-907, Brazil.
Adv Mater. 2016 Dec;28(48):10693-10700. doi: 10.1002/adma.201603119. Epub 2016 Oct 18.
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.
通过三阶非线性效应的光学频率转换在少层黑磷中得到了共振增强。这种增强被认为是激子相关共振的结果，因为增强与激子复合光致发光的观察密切相关。少层厚度可以通过机械剥落和激光变薄两种方法获得。
