Efficient Non-Resonant Microwave Absorption in Thin Cylindrical Targets: Experimental Evidence

TL;DR

This paper demonstrates experimentally that thin cylindrical fibers can absorb microwave power efficiently through a non-resonant mechanism, with potential applications in heating nanotubes.

Contribution

It provides experimental evidence of significant microwave absorption in thin fibers via a non-resonant effect, a novel physical phenomenon.

Findings

Up to 6% microwave power absorption observed.

Absorption occurs in fibers much thinner than the wavelength.

Potential applications in nanotube heating and related fields.

Abstract

Significant (up to 6%) absorption of microwave power focused on a thin fiber (the diameter is three orders of magnitude less than the wavelength) by an ellipsoidal reflector is demonstrated experimentally. This new physical effect can be used in numerous applications, for example, for efficient heating of nanotubes by laser beams.