Glass and silicon probes: A comparative theoretical study for near-field optical microscopy
- 1 July 1998
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 84 (1) , 52-57
- https://doi.org/10.1063/1.368095
Abstract
Glass fibers, chemically etched at their extremities and covered with a thin metal coating, are often present in near-field optical microscopy. Such elongated systems can be used to either probe the evanescent components of the electromagnetic field at the surface of a sample, or locally couple this sample with optical evanescent waves. In this article, we analyze theoretically an alternative tip design made with a silicon core. This kind of probe could be very useful when infrared properties of a surface are to be investigated. The advantages of using such a material for near-field optical detection will be stressed and compared with the performances of a bulk glass fiber. (C) 1998 American Institute of Physics.This publication has 19 references indexed in Scilit:
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