Role of recording geometry in the performance of spectral diversity filters with spherical beam volume holograms

We present experimental demonstrations of spectral diversity filters with spherical beam volume holograms for multimodal multiplex spectroscopy. Major properties of filters under diffuse-light illumination are discussed. The comparisons of spectral diversity between the transmission geometry hologra...

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Bibliographic Details
Published in:Optics letters 2005-01, Vol.30 (2), p.186-188
Main Authors: HSIEH, Chaoray, MOMTAHAN, Omid, KARBASCHI, Arash, ADIBI, Ali, SULLIVAN, Michael E, BRADY, David J
Format: Article
Language:English
Subjects:
Exact sciences and technology
Filters, zone plates, and polarizers
Fundamental areas of phenomenology (including applications)
Holographic optical elements
holographic gratings
Holography
Optical elements, devices, and systems
Optics
Physics
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Summary:We present experimental demonstrations of spectral diversity filters with spherical beam volume holograms for multimodal multiplex spectroscopy. Major properties of filters under diffuse-light illumination are discussed. The comparisons of spectral diversity between the transmission geometry holograms and the reflection geometry holograms are also studied. The results show that there is a trade-off between the degree of the spatial coherence of the source and the spectral diversity of the filter. We also conclude that the reflection geometry holograms have better spectral diversity and less sensitivity to the spatial coherence of the source.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.30.000186