Optical scatterings in layered systems

Chih Wei Chiu, Chang Ting Liu, Chiun Yan Lin, Ming Fa Lin

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a theoretical framework for exploring the optical properties of layered materials. The derived analytical formulas for reflectance and transmittance spectra incorporate vertical valence-state transitions and appropriate boundary conditions for finite-width bulk materials, integrated with the generalized tight-binding model to account for intrinsic interactions and external fields. The study reveals distinct structures in the spectra of multilayer graphene for different stacking layers at low energies (∼0.2-0.8 eV), attributed to interband transitions at the K point. Furthermore, the high-energy part (≳5 eV) highlights thickness-dependent plasmon effects characterized by unique resonance frequencies in the optical spectra. These features depend on the dimensionality, interlayer coupling, and electronic structure of the material. This work provides a deeper understanding of the optical properties of layered structures, facilitating their exploration and characterization for diverse applications.

Original languageEnglish
Article number2450379
JournalInternational Journal of Modern Physics B
DOIs
Publication statusAccepted/In press - 2023

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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