Résumé
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.
langue originale | Anglais |
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Pages (de - à) | 52-57 |
Nombre de pages | 6 |
journal | Journal of Applied Physics |
Volume | 84 |
Numéro de publication | 1 |
Les DOIs | |
Etat de la publication | Publié - 1 juil. 1998 |