Dual-wedge scanning confocal reflectance microscope

A confocal reflectance microscope has been developed that incorporates a dual-wedge scanner to reduce the size of the device relative to current raster scanning instruments. The scanner is implemented with two prisms that are rotated about the optical axis. Spiral and rosette scans are performed by...

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Bibliographic Details
Published in:Optics letters 2007-08, Vol.32 (15), p.2140-2142
Main Authors: WARGER, William C, DIMARZIO, Charles A
Format: Article
Language:English
Subjects:
Biological and medical sciences
Conventional optical microscopes
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General aspects, investigation technics, apparatus
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Optical instruments, equipment and techniques
Physics
Scanning probe microscopes, components and techniques
Tissues, organs and organisms biophysics
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Summary:A confocal reflectance microscope has been developed that incorporates a dual-wedge scanner to reduce the size of the device relative to current raster scanning instruments. The scanner is implemented with two prisms that are rotated about the optical axis. Spiral and rosette scans are performed by rotating the prisms in the same or opposite directions, respectively. Experimental measurements show an on-axis lateral resolution of 1.6 microm and optical sectioning of 4.7 microm, which compares with a diffraction-limited resolution of 0.8 and 1.9 microm, respectively.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.32.002140