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High efficient superresolution combination filter with twin LCD spatial light modulators
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DOI：10.1364/OPEX.13.002835.png)
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摘要
En 中文
A comparative study of pupil filters for transverse superresolution is presented in this article. We propose to combine the advantages of amplitude and phase filters in one complex filter that performs better than either phase or amplitude filters designed so far. The performance here refers to having a smaller spot size along with higher peak to side lobe intensity ratio. Using numerical simulation the limitations of phase and amplitude filters are assessed. The experimental verification of the designed combination filter is performed with two LCD spatial light modulators used for displaying separately the phase and amplitude part of the filter. Results obtained from this setup confirm the simulation. (C) 2005 Optical Society of America.
Keyword:
PUPIL FILTERS
TRANSVERSE
DESIGN
