27 September 2013 The diffraction grating in the Ivory optomechanical modeling tools
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Abstract
In imaging spectrometers it is important that both the image of the far-field object and the image of the slit be stable on the detector plane. Lenses and mirrors contribute to the motions of these images but motions of the diffraction grating also have their own influences on these image motions. This paper develops the vector equations for the images (spectra) of the diffraction grating and derives their optomechanical influence coefficients from them. The Ivory Optomechanical Modeling Tools integrates the diffraction grating into the larger optical imaging system and formats the whole system’s influence coefficients suitably for both spreadsheet and finite element analysis methods. Their application is illustrated in an example of a spectrometer exposed to both static and dynamic disturbances.
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Alson E. Hatheway, "The diffraction grating in the Ivory optomechanical modeling tools", Proc. SPIE 8840, Optical Modeling and Performance Predictions VI, 88400G (27 September 2013); doi: 10.1117/12.2025320; https://doi.org/10.1117/12.2025320
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