WebZnSe is used widely for IR components, windows and lenses, and for spectroscopic ATR prisms. Zinc Selenide is one of the materials of choice for CO 2 laser optics operating at 10.6 microns. ♦ Zinc Selenide IR … Web25 sep. 2024 · The refractive index of ZnSe varies within 2.6–2.8 in the wavelength range of 0.55–0.85 μm and 2.2–2.4 in the wavelength range of 2.5–20 μm. The extinction coeffi …
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Web19 aug. 2016 · The refractive index of most materials, including air, varies with temperature. This causes the power in a lens to vary with temperature, ... ZnSe 6.0 54.9 3.9 x 10-6 Sapphire 4.0 485 4.1 x 10-8 Calcium Fluoride 3.0 5.0 0.93 Zerodur 5.3 293.8 2.5 x … WebProgram to maintain refractive index database. FreeSnell is a program to compute optical properties of multilayer thin-film coatings.. Spectral data may be given in terms of wavelength, photon energy, frequency, or wavenumber.The real part of each spectral refractive-index value is n; the imaginary part (extinction coefficient) is k.. Parametric Data bak berisi air setinggi 80 cm
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Web15 okt. 2009 · Refractive index data of ZnS, ZnSe, and ZnTe were searched, compiled, and analyzed. Recommended values of refractive index for the transparent spectral region were generated in the ranges 0.5–14 μm and 93–1000 K for ZnS, 0.55–18 μm and 93–618 K for ZnSe, and 0.55–30 μm at room temperature for ZnTe. . Generation of these values … Webto or smaller than the free space wavelength divided by the effective refractive index of the mode. Because of their low spatial resolution due to the diffraction limit, traditional optical methods cannot be used for near-field measurements. The Near-field Scanning Optical Microscope (NSOM) was introduced to circumvent this problem [2]. WebThe index of refraction is the ratio of the speed of light in a vacuum to the speed of light in an optical medium, which describes how light slows down as it passes through the material. The refractive index for optical glasses (nd) ( n d) is specified at the Helium d-line wavelength of 587.6nm. arara de roupas taguatinga df