One-Fold Anisotropy of Silver Chiral Nanoparticles Studied by Second-Harmonic Generation

Bin Dong, Junjun Liu, Man Xue, Ziyue Ni, Yuan Guo, Jeffery HUANG*, Zhen Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Second-harmonic generation (SHG) integrated with diverse nonlinear optical activity characterization has high sensitivity to detect the symmetry of materials at an interface, but the study is in its infancy. Here, we employ SHG with linear dichroism (or SHG-LD) to study the chiroptical origin of silver (Ag) chiral nanoparticles (CNPs) deposited by glancing angle deposition (GLAD). It is found that Ag CNPs show the chiroptical activity ascribed to not only the structural chirality (i.e., atomically chiral lattices) but also one-fold anisotropy at an interface due to the substrate rotation during GLAD. Therefore, the SHG-LD shows great potential to provide valuable complementary information to study the chiroptical properties of chiral metamaterials.

Original languageEnglish
Pages (from-to)454-460
Number of pages7
JournalACS Sensors
Volume6
Issue number2
DOIs
Publication statusPublished - 26 Feb 2021

Scopus Subject Areas

  • Bioengineering
  • Instrumentation
  • Process Chemistry and Technology
  • Fluid Flow and Transfer Processes

User-Defined Keywords

  • anisotropy
  • chiral nanoparticles
  • chirality
  • optical activity
  • second-harmonic generation

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