Surface Electromagnetic Waves at Gradual Interfaces between Lossy Media

Abstract

Overview

A groundbreaking research introduces a new type of surface electromagnetic wave that could traverse between two lossy conductive media with minimal losses. This discovery could have significant implications in both environmental and human health contexts.

Applications

• A unique surface wave allowing radio communication and imaging underwater, specifically over a distance of around 500 meters at 10 kHz along a sandy seabed.

Implications for Human Health

• Potential guidance by various tissue boundaries inside the human body, such as between the skull bones and brain's grey matter at 6 GHz.
• Surface wave solutions at these interfaces could represent a significant concern for electromagnetic field (EMF) safety, necessitating a reevaluation of current standards and protections.

Findings

The study illustrated the existence of "interfacial waves", comparing them to known solutions like plasmons and Zenneck waves. The potential for creating deep sub-wavelength surface electromagnetic wave (SEW) cavities, or "hot spots" in human tissues has also been demonstrated.

Conclusion

With the observed potential for wide-reaching applications and serious EMF safety considerations, further study and cautious assessment of these surface electromagnetic waves are crucial.