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 language | English |
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Pages (from-to) | 454-460 |
Number of pages | 7 |
Journal | ACS Sensors |
Volume | 6 |
Issue number | 2 |
Early online date | 17 Dec 2020 |
DOIs | |
Publication status | Published - 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