AI Article Synopsis
- - Plasmonic particles can create optical responses across a broad range of wavelengths, and their optical properties can be tailored by altering their symmetry, resulting in chiral structures.
- - The study focuses on the chiral L-handed helicoid-III nanoparticles, which show significant chiroptical responses in both linear and nonlinear optical regimes, measured using a parameter called the g-factor.
- - The calculated g-factors indicate that while linear optical g-factors were -0.12 and -0.43, the nonlinear ones were notably higher at -1.45 and -1.63, highlighting a substantial enhancement of chirality in the nonlinear optical response.
Article Abstract
While plasmonic particles can provide optical resonances in a wide spectral range from the lower visible up to the near-infrared, often, symmetry effects are utilized to obtain particular optical responses. By breaking certain spatial symmetries, chiral structures arise and provide robust chiroptical responses to these plasmonic resonances. Here, we observe strong chiroptical responses in the linear and nonlinear optical regime for chiral L-handed helicoid-III nanoparticles and quantify them by means of an asymmetric factor, the so-called g-factor. We calculate the linear optical g-factors for two distinct chiroptical resonances to -0.12 and -0.43 and the nonlinear optical g-factors to -1.45 and -1.63. The results demonstrate that the chirality of the helicoid-III nanoparticles is strongly enhanced in the nonlinear regime.
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Source |
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8932316 | PMC |
| http://dx.doi.org/10.1021/acsphotonics.1c00882 | DOI Listing |
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