• 文献标题:   Near unity ultraviolet absorption in graphene without patterning
  • 文献类型:   Article
  • 作  者:   ZHU JF, YAN S, FENG NX, YE LF, OU JY, LIU QH
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Xiamen Univ
  • 被引频次:   11
  • DOI:   10.1063/1.5022768
  • 出版年:   2018

▎ 摘  要

Enhancing the light-matter interaction of graphene is an important issue for related photonic devices and applications. In view of its potential ultraviolet applications, we aim to achieve extremely high ultraviolet absorption in graphene without any nanostructure or microstructure patterning. By manipulating the polarization and angle of incident light, the ultraviolet power can be sufficiently coupled to the optical dissipation of graphene based on single-channel coherent perfect absorption in an optimized multilayered thin film structure. The ultraviolet absorbance ratios of single and four atomic graphene layers are enhanced up to 71.4% and 92.2%, respectively. Our research provides a simple and efficient scheme to trap ultraviolet light for developing promising photonic and optoelectronic devices based on graphene and potentially other 2D materials. Published by AIP Publishing.