Revealing substrate-coupling strengths of layered materials by using spin angular momentum of light

Yu Chen Chang, Ye Ru Chen, Yu Fan Chiang, Yann Wen Lan, Ting Hua Lu*

*此作品的通信作者

研究成果: 書貢獻/報告類型會議論文篇章

摘要

We study here the amount of helicity exchange of scattered light from the monolayer molybdenum disulfide (MoS2) or graphene on different structures by using spin angular momentum of light in Raman spectroscopy. Our in-house modified Raman spectroscopy setup is used for analyzing the optical helicity by calculating the degree of circular polarization (DoCP) of circularly polarized incident light when scattered from the 2D materials on different substrates. We observe Raman intensity variation when controlling phonon vibration of the 2D materials under the polarized excitation. The experimental results show that the layered materials deposited on SiO2/Si substrates has maximum DoCP as compared to other substrates with different structures. All the findings are analyzed by numerical simulation that incorporate the related Raman tensors and optical Jones calculus, which is worth exploring the phonon-electron interaction.

原文英語
主出版物標題Complex Light and Optical Forces XVII
編輯David L. Andrews, Enrique J. Galvez, Halina Rubinsztein-Dunlop
發行者SPIE
ISBN(電子)9781510659773
DOIs
出版狀態已發佈 - 2023
事件Complex Light and Optical Forces XVII 2023 - San Francisco, 美国
持續時間: 2023 1月 302023 2月 2

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
12436
ISSN(列印)0277-786X
ISSN(電子)1996-756X

會議

會議Complex Light and Optical Forces XVII 2023
國家/地區美国
城市San Francisco
期間2023/01/302023/02/02

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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