@article{2014-ploss-peschel-opt-exp-v22-11-p13744,
	Abstract = {<p>
	We demonstrate experimentally and numerically that in fiber tips as they are used in NSOMs azimuthally polarized electrical fields (|E_azi|^2 / |E_tot|^2 &asymp;55% ± 5% for &lambda;_0 = 1550 nm), respectively subwavelength confined (FWHM &asymp;450 nm &asymp;&lambda;_0/3.5) magnetic fields, are generated for a certain tip aperture diameter (d = 1.4 &mu;m). We attribute the generation of this field distribution in metal-coated fiber tips to symmetry breaking in the bend and subsequent plasmonic mode filtering in the truncated conical taper.</p>},
	Author = {Ploss, D. AND Kriesch, A. AND Pfeifer, H. AND Banzer, P. AND Peschel, U.},
	Journal = {Optics express},
	Pages = {13744},
	Title = {{Generation and subwavelength focusing of longitudinal magnetic fields in a metallized fiber tip}},
	Volume = {22 (11)},
	Year = {2014}
}