volume | PIER Journals

Abstract

Recently it was demonstrated that a new type of radio frequency surface electromagnetic wave appears on the surface of a lossy conductive medium in the presence of dielectric permittivity gradients. We present theoretical and experimental study of gradient surface electromagnetic wave (GSEW) excitation and propagation on such conductive surfaces as various metals, water, and human skin. The geometry of our experiments is designed to emulate various potential biosensing and bioimaging applications of GSEW. We demonstrate the capability of GSEW-based techniques to detect the presence of metallic and dielectric objects underwater in close proximity to the water surface. Since the dielectric properties of the human body are similar to those of water, we anticipate that the developed GSEW technique may supplement x-ray and ultrasound-based biosensing and bioimaging.

1. Smolyaninov, Igor I., "Surface electromagnetic waves at gradual interfaces between lossy media," Progress In Electromagnetics Research, Vol. 170, 177-186, 2021.

2. Zayats, Anatoly V., Igor I. Smolyaninov, and Alexei A. Maradudin, "Nano-optics of surface plasmon polaritons," Physics Reports, Vol. 408, No. 3-4, 131-314, 2005.

3. Smolyaninov, Igor I., Quirino Balzano, and Alexander B. Kozyrev, "Surface electromagnetic waves at seawater-air and seawater-seafloor interfaces," IEEE Open Journal of Antennas and Propagation, Vol. 4, 51-59, 2022.

4. Smolyaninov, Igor I., "Surface electromagnetic waves in lossy conductive media: Tutorial," Journal of the Optical Society of America B, Vol. 39, No. 7, 1894-1901, 2022.

5. Michalski, K. A. and J. R. Mosig, "The Sommerfeld half-space problem revisited: From radio frequencies and Zenneck waves to visible light and Fano modes," Journal of Electromagnetic Waves and Applications, Vol. 30, No. 1, 1-42, 2016.

6. Kukushkin, Aleksandr V., "On the existence and physical meaning of the Zenneck wave," Physics-Uspekhi, Vol. 52, No. 7, 755, 2009.

7. Smolyaninov, Igor I., Quirino Balzano, and Dendy Young, "Surface wave-based radio communication through conductive enclosures," Progress In Electromagnetics Research M, Vol. 85, 21-28, 2019.

8. Akowuah, E. K., T. Gorman, and S. Haxha, "Design and optimization of a novel surface plasmon resonance biosensor based on Otto configuration," Optics Express, Vol. 17, No. 26, 23511-23521, 2009.

9. Ebbesen, T. W., H. J. Lezec, H. F. Ghaemi, T. Thio, and P. A. Wolff, "Extraordinary optical transmission through sub-wavelength hole arrays," Nature, Vol. 391, No. 6668, 667-669, 1998.

10. Smolyaninov, Igor I., Quirino Balzano, Mark Barry, and Dendy Young, "Superlensing enables radio communication and imaging underwater," Scientific Reports, Vol. 13, No. 1, 18333, 2023.

11. Zou, Dandan, Chensheng Tu, and Chunmei Cui, "Helical streamers guided by surface electromagnetic standing waves," Plasma Science and Technology, Vol. 25, No. 7, 072001, 2023.

12. Mejía-Salazar, J. R. and Osvaldo N. Oliveira Jr., "Plasmonic biosensing," Chemical Reviews, Vol. 118, No. 20, 10617-10625, 2018.

13. Li, Ming, Scott K. Cushing, and Nianqiang Wu, "Plasmon-enhanced optical sensors: A review," Analyst, Vol. 140, No. 2, 386-406, 2015.

Dr. Igor I. Smolyaninov

Dr. Quirino Balzano