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Proceedings Paper

Background and speckle suppression with a divided pupil and Nomarski prism for reflectance line-scanning confocal microscopy of human tissues
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Paper Abstract

We present a design of a line-scanning confocal microscope for reduced speckle and improved sectioning performance by the use of two pupil-modification techniques. The first is a divided-pupil configuration in which the illumination and detection paths are separate in object space except in the focal (optical sectioning) plane. The second technique is a novel implementation of a Nomarski prism and quarter-wave retarder, termed NRDIC, which has shown good results in point-scanning confocal microscopy and we will present its translation to line-scanning confocal microscopy. A stable turbid phantom that simulates the background-driven speckle was used for quantitative characterization. Compared to standard full pupil line-scanning, we show improvements in signal to background of 1.8 and 9 for NRDIC and divided pupil, respectively. Preliminary imaging in human skin in-vivo demonstrates the improvements in contrast and reduction of speckle for both the NRDIC and divided pupil modes.

Paper Details

Date Published: 2 February 2012
PDF: 8 pages
Proc. SPIE 8227, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XIX, 82270Z (2 February 2012); doi: 10.1117/12.908270
Show Author Affiliations
Christopher Glazowski, Memorial Sloan-Kettering Cancer Ctr. (United States)
James Zavislan, Institute of Optics, Univ. of Rochester (United States)
Milind Rajadhyaksha, Memorial Sloan-Kettering Cancer Ctr. (United States)

Published in SPIE Proceedings Vol. 8227:
Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XIX
Jose-Angel Conchello; Carol J. Cogswell; Tony Wilson; Thomas G. Brown, Editor(s)

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