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Optical Constants of Quartz Glass in 1.34-4.20μm Spectral Range

The transmittance spectrograms of quartz glass slabs are measured in spectral range 1.34-4.20μm. A new inversion method of optical constants (k is extinction coefficient and n is refractive index) of glass was proposed to calculate the optical constants. The optical constants of selenide glass attained in the references were selected as the true values, and the spectral transmittance radio of the semitransparent solid based on the direct model simulation were regarded as the experimental values, and validation of the new inversion method was investigated. Then the optical constants of quartz glass were achieved by the inverse model.