O. Rudow et al., Theoretical investigations of a coaxial probe concept for scanning near-field optical microscopy, OPT COMMUN, 189(4-6), 2001, pp. 187-192
In this paper we present a concept of a coaxial probe fur near-field optica
l microscopy that can be realized utilizing micromachining technology proce
sses. Numerical calculations were performed to prove the optical benefits o
f the coaxial probe in comparison to conventional aperture tips. Furthermor
e. the influence of the coaxial probe geometry with respect to its transmis
sion efficiency and field confinement in the apex plane was investigated in
detail. (C) 2001 Elsevier Science B.V. All rights reserved.