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DOI: 10.17586/1023-5086-2020-87-01-56-61
УДК: 535.323, 535.345.673
Optical and structural properties of ZnS0.5Se0.5 films and interference filters based on them
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Publication in Journal of Optical Technology
Котликов Е.Н., Тропин А.Н. Оптические и структурные свойства пленок ZnS0,5Se0,5 и интерференционные фильтры на их основе // Оптический журнал. 2020. Т. 87. № 1. С. 56–61. http://doi.org/10.17586/1023-5086-2020-87-01-56-61
Kotlikov E.N., Tropin A.N. Optical and structural properties of ZnS0.5Se0.5 films and interference filters based on them [in Russian] // Opticheskii Zhurnal. 2020. V. 87. № 1. P. 56–61. http://doi.org/10.17586/1023-5086-2020-87-01-56-61
E. N. Kotlikov and A. N. Tropin, "Optical and structural properties of ZnS0.5Se0.5 films and interference filters based on them," Journal of Optical Technology. 87(1), 45-49 (2020). https://doi.org/10.1364/JOT.87.000045
In this study, the structural and optical properties of thin films of a ZnS0.5Se0.5ZnS0.5Se0.5 solid solution, which are used to create multilayer interference coatings for operation in the near- and mid-infrared regions, are investigated. The structural features and phase composition of the initial film-forming material and films obtained by thermal evaporation in a vacuum on substrates of borosilicate glass and single crystals of germanium and silicon are studied by X-ray diffraction analysis. The dispersion dependences of the optical constants are calculated from spectrophotometric measurements of the films studied here in the spectral range of 2–25 µm. The results of designing and manufacturing infrared interference filters using the films studied here are presented, which include a bandpass filter with transmission in the wavelength range of 8–12 µm and a narrow-bandpass filter with maximum transmission at a wavelength of 10.56 µm and a full width at half-maximum of 140 nm.
optical films, infrared spectrum, zinc selenide, zinc sulphide, solid solution, phase composition, optical constants, interference filter
OCIS codes: 160.4670, 310.1620
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