Abstract
To achieve a further extension of the depth of field in wavefront-coded imaging by reducing the impact of focus error in the optical transfer function, we propose the use of a free-form phase mask (FPM) instead of a conventional cubic phase mask (CFM). We optimized the shape of the FPM using the simulated annealing algorithm and confirmed that the optimized FFM provides a much larger focal tolerance and better final images than the CPM in the noise-free case.
| Original language | English |
|---|---|
| Pages (from-to) | 1515-1517 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 33 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2008 Jul 1 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Takahashi, Y., & Komatsu, S. (2008). Optimized free-form phase mask for extension of depth of field in wavefront-coded imaging. Optics Letters, 33(13), 1515-1517. https://doi.org/10.1364/OL.33.001515