• 文献标题:   Third-harmonic generation in one-dimensional photonic crystal with graphene-based defect
  • 文献类型:   Article
  • 作  者:   VINCENTI MA, DE CEGLIA D, GRANDE M, D ORAZIO A, SCALORA M
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121 EI 1550-235X
  • 通讯作者地址:   AMRDEC
  • 被引频次:   23
  • DOI:   10.1103/PhysRevB.89.165139
  • 出版年:   2014

▎ 摘  要

Third-harmonic generation may be dramatically enhanced in monolayer graphene by inserting it in a properly designed structure. In addition, placing graphene within the defect layer of an asymmetric, one-dimensional photonic crystal triggers nearly 100% narrowband absorption. We demonstrate that the improved field localization within the defect state enhances third-harmonic generation by nearly five orders of magnitude compared with bare monolayer graphene. Saturation of the third-order susceptibility plays a role at both fundamental and third-harmonic frequencies. We discuss the benefits of including graphene within the structure for both signals.