Broadband astigmatism-free Czerny-Turner imaging spectrometer using spherical mirrors.
We describe the elimination of the astigmatism of a Czerny-Turner imaging spectrometer, built using spherical optics and a plane grating, over a broad spectral region. Starting with the principle of divergent illumination of the grating, which removes astigmatism at one chosen wavelength, we obtain...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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