Selective diffraction with possible application to solar research |
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| Authors: | Yngve Öhman |
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| Institution: | (1) Stockholm Observatory, Saltsjöbaden, Sweden |
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| Abstract: | The writer describes diffraction phenomena in transmission gratings made as strips of alternating color. He discusses diffraction in slits formed in semitransparent material including liquid or gaseous layers and particularly when line- and band-absorption is present. He suggests that atmospheric seeing should be influenced by selective diffraction in telluric lines. He also discusses possible seeing effects in the solar atmosphere and prominences and hints at the possibility that irregular or semiregular selective diffraction may appear in the deep layers of sunspots possibly contributing to the scattering of light. |
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