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Proceedings Paper

Thermal imaging by ordered arrays of polycrystalline silver halide optical fibers
Author(s): Dror Shemesh; Idan Paiss; Shaul Shalem; Abraham Katzir
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Paper Abstract

Bundles of silver halide optical fibers have been fabricated by extrusion of preforms containing core-clad fibers. Silver halide fibers are transparent in the mid-IR spectral range (2 - 20 micrometers ), and therefore ordered arrays of such fibers have the potential to deliver thermal images at room temperature. Several kinds of bundles were prepared, consisting of 100 to 2500 fibers, with a fill factor of 0.34. Thermal images were delivered through the bundles and recorded using a IR cooled camera. This paper discusses the optical properties and the imaging characteristics of bundles with several fiber densities of 3 - 160 fibers per mm2 and lengths up to 30 cm. The modulation transfer function of the bundles was measured by the knife edge sampling process, and by `bar-chart' imaging. The maximum spatial frequency that could be resolved after passing through a typical bundle was 3.5 lines per millimeter.

Paper Details

Date Published: 1 May 1995
PDF: 6 pages
Proc. SPIE 2396, Biomedical Optoelectronic Instrumentation, (1 May 1995); doi: 10.1117/12.208389
Show Author Affiliations
Dror Shemesh, Tel Aviv Univ. (Israel)
Idan Paiss, Tel Aviv Univ. (Israel)
Shaul Shalem, Tel Aviv Univ. (Israel)
Abraham Katzir, Tel Aviv Univ. (Israel)


Published in SPIE Proceedings Vol. 2396:
Biomedical Optoelectronic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir, Editor(s)

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