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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 905-908 |
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Borzouei H. Astigmatism and Coma aberration Correction in Raman array spectrometer. ICOP & ICPET _ INPC _ ICOFS 2019; 25 :905-908
URL: http://opsi.ir/article-1-1724-en.html
URL: http://opsi.ir/article-1-1724-en.html
Engineering Faculty, Sabzevar university of new technology, Iran, 9615918339
Abstract: (2043 Views)
The very weak signal of Raman scattering needs the optimized array spectrometer. The Astigmatism and Coma aberrations are the main problem in received energy and wavelength resolution. An optimized array spectrometer in range of 780 to 1100 nm with F/number of 4.5 has been designed. A cylindrical lens added to correction of Astigmatism aberration. The optimum point of object and image respect to mirrors calculated. This special design minimizes the Coma aberration. The 600 line per millimeter grating has been used and the resolution of 0.25 nm has achieved.
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