near-field

Extraction of optical Bloch modes in a photonic-crystal waveguide
S. R. Huisman, G. Ctistis, S. Stobbe, J. L. Herek, P. Lodahl, W. L. Vos, and P. W. H. Pinkse
J. Appl. Phys. 111, 033108: 1-5 (2012)