Microwave seminar | 24 October 2024

Self-complementary metasurfaces have shown promising applications in microwaves and sub-THz ranges for filtering, polarizing, light deflecting, guiding surface waves, and guiding line waves. These applications are based on Babinet's principle. Scaling down these structures to the infrared range poses challenges due to the violation of Babinet's principle at these frequencies. This talk will discuss recent research showing that it is possible to recover the validity of Babinet's principle in the infrared by using silicon and silver metasurfaces with a thickness of approximately 13 nm. The potential of extending the applications of self-complementary metasurfaces from microwaves and sub-THz to the infrared range will be explored.

References:

1. J. D. Ortiz et al., “Self-Complementary Metasurface for Designing Narrow Band Pass/Stop Filters,” IEEE Microw. Wirel. Compon. Lett. 23, 291 (2013).
2. J. D. Baena et al., “Self-complementary metasurfaces for linear-to-circular polarization conversion,” Phys. Rev. B 92, 245413 (2015).
3. J. D. Baena et al., “Broadband and Thin Linear-to-Circular Polarizers Based on Self-Complementary Zigzag Metasurfaces,” IEEE Trans. Antennas Propag. 65, 4124 (2017).
4. A. Sayanskiy et al., “Frequency-Controllable Polarization Rotation of THz Waves With an SCMS,” IEEE Trans. Antennas Propag. 68, 1491 (2020).
5. S. A. Kuznetsov et al., “Self-complementary metasurfaces for designing terahertz deflecting circularpolarization beam splitters,” Appl. Phys. Lett. 118, 131601 (2021).
6. V. A. Lenets et al., “A Focusing Circular-Polarization THz Beam Splitter Based on a Self-Complementary Metasurface,” IEEE Trans. Terahertz Sci. Technol. 11, 165 (2021).
7. O. Yermakov et al., “Surface Waves on Self-Complementary Metasurfaces: All-Frequency Hyperbolicity, Extreme Canalization, and TE-TM Polarization Degeneracy,” Phys. Rev. X 11, 031038 (2021).
8. D. R. Mason et al., “Plasmonic Excitations of 1D Metal-Dielectric Interfaces in 2D Systems: 1D Surface Plasmon Polaritons,” Sci. Rep. 4, 4536 (2014).
9. D. J. Bisharat and D. F. Sievenpiper, “Guiding Waves Along an Infinitesimal Line between Impedance Surfaces,” Phys. Rev. Lett. 119, 106802 (2017).
10. X. Kong et al., “Analytic theory of an edge mode between impedance surfaces,” Phys. Rev. A 99, 033842 (2019).
11. J. D. Ortiz et al., “Extension of Babinet's principle for plasmonic metasurfaces,” Appl. Phys. Lett. 119, 161103 (2021).