Journal
OPTICS EXPRESS
Volume 19, Issue 6, Pages 5419-5430Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.005419
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Funding
- German Research Foundation (DFG)
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Optical Projection Tomography (OPT) proved to be useful for the three-dimensional tracking of fluorescence signals in biological model organisms with sizes up to several millimeters. This tomographic technique detects absorption as well as fluorescence to create multimodal three-dimensional data. While the absorption of a specimen is detected very fast usually less than 0.1% of the fluorescence photons are collected. The low efficiency can result in radiation dose dependent artifacts such as photobleaching and phototoxicity. To minimize these effects as well as artifacts introduced due to the use of a CCD- or CMOS-camera-chip, we constructed a Scanning Laser Optical Tomograph (SLOT). Compared to conventional fluorescence OPT our first SLOT enhanced the photon collection efficiency a hundredfold. (C) 2011 Optical Society of America
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