Efficient Non-Resonant Microwave Absorption in Thin Cylindrical Targets:   Experimental Evidence
  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. 
A. Akhmeteli, N.G. Kokodiy, B.V. Safronov, V.P. Balkashin, I.A. Priz   and A. Tarasevitch
physics.plasm-ph