Abstract
Near-field scanning optical microscopy (NSOM) using the aperture probe (AP) has helped to uncover exciting phenomena such as single molecule excitation [1], optical polarization singularities [2] and slow light [3]. However, the interpretations of these measurements have all been based on the assumption that what is collected is the in-plane electric near-field [2,3,4]. And, until the recent advent of metamaterials [5] this view has remained unchallenged. Interestingly, the AP has been recently reported yield information on the in-plane magnetic field [6]. In this study we show that contrary to both, the originally held assumption and the assertion of the new study, a typical AP (as shown in Fig. 1a) is sensitive to both electric and magnetic fields. Specifically, we show that the AP collects radiation from the four in-plane components of the near-field.
© 2013 IEEE
PDF ArticleMore Like This
L. (Kobus) Kuipers
AM3L.1 CLEO: Applications and Technology (CLEO:A&T) 2014
Denitza Denkova, Niels Verellen, Alejandro V. Silhanek, Ventsislav K. Valev, Pol Van Dorpe, and Victor V. Moshchalkov
FTu5D.1 Frontiers in Optics (FiO) 2013
Dilip K. Singh, Q. H. Kihm, H. W. Kihm, and Dai-Sik Kim
QTh4F.7 Quantum Electronics and Laser Science Conference (CLEO:FS) 2012