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#1
November 2nd 04, 10:03 PM
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Holographic grating spectra
Has anyone on this list used a holographic grating for spectroscopy? I
was asked to test an inexpensive thin film type holographic grating for slitless meteor spectroscopy. Trying to measure a spectrum it appears that dispersion is non linear. Is this a characteristic of a holographic grating type? I would have thought linearity would be the same as with a blazed precision transmission diffraction grating!!!!!! Any comments? Ed Majden 
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