Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The N-Oscillator Born-Kuhn Model: An In-depth Analysis of Chiro-optical Properties in Complex Chiral Systems

Version 1 : Received: 26 December 2023 / Approved: 27 December 2023 / Online: 27 December 2023 (04:28:50 CET)

A peer-reviewed article of this Preprint also exists.

Zhao, Y.; Galiautdinov, A.; Tie, J. The N-Oscillator Born–Kuhn Model: An In-Depth Analysis of Chiro-Optical Properties in Complex Chiral Systems. Nanomaterials 2024, 14, 270. Zhao, Y.; Galiautdinov, A.; Tie, J. The N-Oscillator Born–Kuhn Model: An In-Depth Analysis of Chiro-Optical Properties in Complex Chiral Systems. Nanomaterials 2024, 14, 270.

Abstract

A comprehensive theory is developed for the chiral optical response of two configurations of the N-oscillator Born-Kuhn model (NOBK): the helically stacked and the corner stacked models. In the helical NOBK model, there is always a chiral response regardless of the value of N, whereas in the corner NOBK, only configurations with even N demonstrate a chiral response. Generally, the magnitudes of optical rotatory dispersion (ORD) and circular dichroism (CD) increase with N when the parameters of each oscillator are fixed. In cases of weak coupling, the spectral shapes of ORD and CD remain invariant, while strong coupling significantly alters the spectral shapes. For large damping, the spectral amplitude becomes smaller, and the spectral features become broader. In the presence of small damping, strong coupling introduces degeneracy in the coupled oscillator system, leading to multiple spectral features in both ORD and CD across the entire spectral region. This simple model not only can help in the design of tunable chiral metamaterials but also enhance our understanding of chiro-optical responses in structures with different configurations.

Keywords

Born-Kuhn model; chiral plasmonics; chiral structures; chiral optics; circular dichroism; optical rotatory dispersion; coupled oscillators

Subject

Physical Sciences, Optics and Photonics

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.