Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007njph....9..132a&link_type=abstract
New Journal of Physics, Volume 9, Issue 5, pp. 132 (2007).
Physics
2
Scientific paper
The generalized phase contrast (GPC) method is analysed in the context of projecting two-dimensional grey-level images. A rectangular phase contrast filter is introduced, instead of the usually applied circular filter, to correspond better with the rectangular aperture characteristic of commercially available spatial light modulators. A simple expression is derived for determining the appropriate phase-only modulation to convert an initial plane wave illumination into a desired output intensity distribution. Numerical simulations demonstrate excellent image reconstruction by GPC using the derived phase-to-intensity mapping. Optical throughput is predicted to be as high as 87% for optimum image quality, and may reach 98% with some trade-off in image fidelity.
Amadeo Alonzo Carlo
Glückstad Jesper
Rodrigo Peter John
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