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Proceedings Paper

Energy dissipation in NSOM probe fiber tapers: ray-tracing assessment
Author(s): P. Oscar Boykin; Michael A. Paesler; Boris I. Yakobson
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Paper Abstract

We use a ray tracing technique in order to analyze the optical throughput and the side wall energy deposition for the glass fiber probes used in the near-field scanning optical microscopy (NSOM). It is shown that the significant part of the light can be dissipated tens or even hundreds of microns away from the probe apex due to absorption by metal coating. The results also indicate that a substantial part of the light coupled into the fiber probe is reflected back. The analysis elucidates the 'far-field' causes for a low throughput of NSOM probes and their overheating. The ways of further probe geometry and structure improvement are outlined.

Paper Details

Date Published: 5 April 1996
PDF: 6 pages
Proc. SPIE 2677, Biomedical Fiber Optics, (5 April 1996); doi: 10.1117/12.237562
Show Author Affiliations
P. Oscar Boykin, North Carolina State Univ. (United States)
Michael A. Paesler, North Carolina State Univ. (United States)
Boris I. Yakobson, North Carolina State Univ. (United States)

Published in SPIE Proceedings Vol. 2677:
Biomedical Fiber Optics
Abraham Katzir; James A. Harrington, Editor(s)

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