@inproceedings{d506e128f7894bcfa67ea291f79f5b8d,
title = "Revealing substrate-coupling strengths of layered materials by using spin angular momentum of light",
abstract = "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.",
keywords = "2D materials, Graphene, Helicity exchange, MoS2, Phonon, Polarized Raman spectroscopy",
author = "Chang, {Yu Chen} and Chen, {Ye Ru} and Chiang, {Yu Fan} and Lan, {Yann Wen} and Lu, {Ting Hua}",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; Complex Light and Optical Forces XVII 2023 ; Conference date: 30-01-2023 Through 02-02-2023",
year = "2023",
doi = "10.1117/12.2648896",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Andrews, {David L.} and Galvez, {Enrique J.} and Halina Rubinsztein-Dunlop",
booktitle = "Complex Light and Optical Forces XVII",
}