Wentao Zhang, Weijie Shi, Hui Guo, Changchun Yan. Broadband Circular Dichroism of Rotating Helical-Typed Mid-Infrared Chiral Metamaterials[J]. Laser & Optoelectronics Progress, 2022, 59(5): 0516002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 5, 0516002 (2022)
Fig. 1. Schematic diagram of chiral unit cell composed of rotating helix. (a)Three-dimensional view; (b) top view
Fig. 2. CD and transmittance spectra of structure for RCP and LCP incident waves
Fig. 3. Distributions of electric field intensities at different cross sections vertical to incident direction under RCP and LCP waves at wavelength of 7.95 µm
Fig. 4. CD properties of original structure, same periodic single helical structure and diffreent angle rotating helical structures
Fig. 5. Distributions of electric field intensities of structure 2 at different cross sections vertical to incident direction under RCP and LCP waves at wavelength of 4.97 µm
Fig. 6. CD properties of structures with 1, 2, and 3 turns of helices, respectively
Fig. 7. Transmittance spectra of structures for LCP and for RCP waves when turn numbers of helices are 1 turn, 2 turns, and 3 turns, respectively
Fig. 8. CD properties of structures when helical radii are 0.8 and 1.2 times of original radius, respectively
Fig. 9. CD properties of structures with different pitches of helices of 2.0, 2.2 and 2.4 µm, respectively
Fig. 10. CD properties of structures with different wire radii of 0.15, 0.20, and 0.25 µm, respectively.
Fig. 11. CD properties of structures when helical radii of subunit cells are 0.25, 0.30, 0.35, and 0.40 µm, and helical turns of subunit cells are 1.5, 2, 2.5, and 3, respectively
Fig. 12. CD properties of structures with different components consisting of ITO, Au and Ag, respectively
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20