Volume holographic spectral imaging

We report on a volume holographic imaging spectrometer (VHIS) system which allows retrieval of a scene's two-dimensional spatial information as well as its spectral information. This is performed using a transmission volume hologram and a simple rotary scanning mechanism. The system has the advantages of high spectral and spatial resolutions and the potential of single-shot, four-dimensional (3D spatial plus ID spectral) imaging by recording multiple volume holograms in the same material. Also, due to the transmission diffraction geometry, the system automatically eliminates the stray excitation light from the captured signal. We give theoretical analysis of the performance and experimental demonstration using fluorescent CdSe/ZeS quantum dots. The measured quantum dots spectra agree well with the spectra obtained using a conventional spectrometer.


Published in:
Progress in Biomedical Optics and Imaging, 33-40
Year:
2005
ISSN:
16057422
Other identifiers:
Scopus: 2-s2.0-23244443588
Laboratories:




 Record created 2010-11-23, last modified 2018-09-13


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