Journal
OPTICS LETTERS
Volume 25, Issue 1, Pages 46-48Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.25.000046
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Funding
- NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [P41EB015871] Funding Source: NIH RePORTER
- NIBIB NIH HHS [P41 EB015871] Funding Source: Medline
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A high-resolution fluorescence microscopy technique has been developed that achieves a lateral resolution of better than one sixth of the emission wavelength (FWHM). By use of a total-internal-reflection geometry, standing evanescent waves are generated that spatially modulate the excitation of the sample. An enhanced two-dimensional image is formed from a weighted sum of images taken at different phases and directions of the standing wave. The performance of such a system is examined through theoretical calculations of both the point-spread function and the optical transfer function. (C) 2000 Optical Society of America.
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