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Journal of Biomedical Optics

Fabrication and characterization of cylindrical light diffusers comprised of shape memory polymer
Author(s): Ward Small; Patrick R. Buckley; Thomas S. Wilson; Jeffrey M. Loge; Kristen D. C. Maitland; Duncan J. Maitland
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Paper Abstract

We developed a technique for constructing light diffusing devices comprised of a flexible shape memory polymer (SMP) cylindrical diffuser attached to the tip of an optical fiber. The devices are fabricated by casting an SMP rod over the cleaved tip of an optical fiber and media blasting the SMP rod to create a light diffusing surface. The axial and polar emission profiles and circumferential (azimuthal) uniformity are characterized for various blasting pressures, nozzle-to-sample distances, and nozzle translation speeds. The diffusers are generally strongly forward-directed and consistently withstand over 8 W of incident IR laser light without suffering damage when immersed in water. These devices are suitable for various endoluminal and interstitial biomedical applications.

Paper Details

Date Published: 1 March 2008
PDF: 7 pages
J. Biomed. Opt. 13(2) 024018 doi: 10.1117/1.2904952
Published in: Journal of Biomedical Optics Volume 13, Issue 2
Show Author Affiliations
Ward Small, Lawrence Livermore National Lab. (United States)
Patrick R. Buckley, Lawrence Livermore National Lab. (United States)
Thomas S. Wilson, Lawrence Livermore National Lab. (United States)
Jeffrey M. Loge, Lawrence Livermore National Lab. (United States)
Kristen D. C. Maitland, Texas A&M Univ. (United States)
Duncan J. Maitland, Lawrence Livermore National Lab. (United States)

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