Related Experiment Video
Updated: Jan 19, 2026

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
Published on: July 25, 2022
Broadband circular polarizer based on twisted plasmonic nano-disks
Abstract:
The broadband circular polarizer based on the surface plasmon of a metal nanostructure has important practical application due to its adjustability, low cost, and easy integration. In this article, a twisted multilayer double semi-disc structure is designed to allow for a broadband circular polarizer, whose transmission spectra are simulated using the finite element method under left-handed circularly polarized and right-handed circularly polarized extinction. The results show a large extinction ratio up to 900 for properly designed geometry and a broad bandwidth (defined as extinction ratio >10) of 50-160 nm. Additionally, the broadband position, bandwidth, and extinction rate are all sensitive to some geometric parameters, such as rotation angle, disk radius, and more, and the mechanism of this phenomenon is clarified by exploring the plasmon electromagnetic resonance on nanostructures.
More Related Videos
Related Concept Videos
09:57Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
07:39Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
09:29Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
10:54Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
06:24High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
11:41Magnetic Tweezers for the Measurement of Twist and Torque

