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Factors in Design of Optical Super-Resolving Filters
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| XIAO Fan-Rong;YUAN Jing-He;WANG Gui-Ying;XU Zhi-Zhan |
| Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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XIAO Fan-Rong, YUAN Jing-He, WANG Gui-Ying et al 2004 Chin. Phys. Lett. 21 70-72 |
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Abstract Three key factors in design of optical pupil filters with super-resolving are studied. For the same normalized spot size, the factor of sidelobe intensity is more important for designing filters in applications. Thus the phase-only filters do not always perform better than the transmittance filters which always have lower Strehl ratio. The drawback of lower central core intensity can be compensated for by the high power laser. The argument has been justified in our numerical experimental results with the simplest filter patterns.
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| Keywords:
42.25.Fx
42.30.Lr
42.79.Ci
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Published: 01 January 2004
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| PACS: |
42.25.Fx
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(Diffraction and scattering)
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42.30.Lr
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(Modulation and optical transfer functions)
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42.79.Ci
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(Filters, zone plates, and polarizers)
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