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Sub-Rayleigh optica...
Sub-Rayleigh optical vortex coronagraphy
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Mari, E. (author)
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Tamburini, F. (author)
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Swartzlander, G. A., Jr. (author)
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Bianchini, A. (author)
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Barbieri, C. (author)
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Romanato, F. (author)
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- Thidé, Bo (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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(creator_code:org_t)
- 2012
- 2012
- English.
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In: Optics Express. - 1094-4087. ; 20:3, s. 2445-2451
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We introduce a new optical vortex coronagraph(OVC) method to determine the angular distance between two sources when the separation is sub-Rayleigh. We have found a direct relationship between the position of the minima and the source angular separation. A priori knowledge about the location of the two sources is not required. The superresolution capabilities of an OVC, equipped with an l = 2 N-step spiral phase plate in its optical path, were investigated numerically. The results of these investigations show that a fraction of the light, increasing with N, from the secondary source can be detected with a sub-Rayleigh resolution of at least 0.1 lambda/D.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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