MoS2 Broadband Coherent Perfect Absorber for Terahertz Waves

Weiren Zhu, Fajun Xiao, Ming Kang, Debabrata Sikdar, Xianling Liang, Junping Geng, Malin Premaratne, Ronghong Jin

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16 Citations (Scopus)


We present a comprehensive analysis of terahertz waves propagation through a bulk MoS2 crystal slab. It is shown that broadband coherent perfect absorption can be achieved and the coherent absorptivity can be adjusted from 1.57% to 99.97% by means of phase modulation. Moreover, the relative bandwidth for over 90% coherent absorptivity can be as wide as 179%. By increasing the doping rate in MoS2 crystal, the coherent absorptivity spectrum exhibits a clear blueshift whilst the peak coherent absorptivity remains over 99.9%. Full-wave numerical simulations are further carried out to confirm the validity of our theoretical analysis.

Original languageEnglish
Article number5502207
Number of pages8
JournalIEEE Photonics Journal
Issue number6
Publication statusPublished - 1 Dec 2016


  • broadband
  • Coherent perfect absorber
  • MoS

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