نوع مقاله : مقاله پژوهشی
نویسنده
دانشیار، دانشگاه هرمزگان، بندرعباس، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
An optical spectrometer is a tool used to separate an electromagnetic radiation into its wavelength components and has a variety of applications in science and industry. In this paper, an optical spectrometer in the UV-A spectral region, which has not been investigated before, is designed. For this design, a holographic diffraction grating with a groove density of 3600 lines/mm and a number of lenses with different materials suitable for the ultraviolet region are used. To achieve high contrast and resolution, the beams of each wavelength scattered by the grating must be carefully focused on the detector screen. For this purpose, eight lenses made of silica and fused silica, which have a high transfer coefficient in the ultraviolet region, were used. Then, after the initial calculations and determining the estimated radius of curvature of the surfaces, in order to achieve the desired results, the lenses were placed at a distance of 1 mm from each other and by using appropriate operands defined in the merit function editor of Zemax software, the thickness of the surfaces and the radius of curvature of the lenses was optimized in several stages . After optimization, at the central wavelength, all points of the spot diagram were located inside the Airy disk and the resolution of approximately 30 pm was obtained, which is a very good result compared to the previous works of researchers in other areas of the electromagnetic spectrum.
کلیدواژهها [English]
DOI:10.1117/12.457339
https://doi.org/10.3390/app9020290
https://doi.org/10.1142/9789811203770_0007
https://qmro.qmul.ac.uk/xmlui/handle/123456789/71805
ISBN: 9780199298624
DOI:10.1002/9780470692059
DOI: 10.1117/1.JBO.23.3.030901
https://link.springer.com/book/10.1007/978-94-007-7832-0
DOI: 10.1146/annurev.physchem.47.1.555
https://doi.org/10.1142/9789811203770_0007
https://doi.org/10.1364/JOT.80.000256
https://doi.org/10.3390/fermentation4010018
DOI: 10.1364/OE.24.006459
DOI: 10.1366/11-06295
DOI: 10.1016/j.yrtph.2018.04.003
https://link.springer.com/chapter/10.1007/978-94-017- 3008-2_58
DOI: 10.12086/oee.2018.180195
ISBN: 978-0943396750
DOI: 10.1117/12.294397
DOI:10.20944/preprints202207.0094.v1
[30] A. Bagheri Yazdabadi, M. Nazeri, A. Sajedi Bidgoli and Milad Kolahi, " Design and Construction of a Spectrometer With 0.04 nm Resolution at 78 nm Central Wavelength,"23 rd Iranian Conference on Optics Photonics and 9th Conference on Photonics Engineering and Thechnology Tarbiat Modares University, Tehran, Iran, 2017 (in Persian). http://opsi.ir/article-1-1367-en.html