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Coaxial scanning near‐field optical microscope tips: an alternative for conventional tips with high transmission efficiency?
Author(s) -
Demming F.,
Jersch J.,
Klein S.,
Dickmann K.
Publication year - 2001
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.2001.00782.x
Subject(s) - coaxial , optics , optical microscope , microscope , near field scanning optical microscope , transmission (telecommunications) , materials science , field (mathematics) , near and far field , telecommunications , physics , computer science , scanning electron microscope , mathematics , pure mathematics
Since the development of the first scanning near‐field optical microscope, great effort has been put into the development of near‐field optical probe tips with a good lateral resolution of the order of several tens of nanometres and a high power throughput. Several groups have proposed the use of scanning near‐field optical tips with a coaxial structure. From electromagnetic theory, it is known that such structures have no cut‐off frequency and a power transmission close to unity. In this paper we discuss some topics concerning the stimulation of optical coaxial waves and their propagation behaviour.