The Optimization Problem in Spectroscopic Ellipsometry Technique : Optical Spectra Determination for Pb5Ge3O11 Crystal

Ellipsometric spectra Ψ(λ), ∆(λ) was measured for Pb₅Ge₃O₁₁ optical crystal in the spectral range 388-620 nm. Mathematical model was developed taking into account optical anisotropy and surface roughness of the measured specimen. Nonlinear regression method was applied in order to fit experimental and modeled data. Refractive index spectra no(λ) ne(λ) are determined for Pb₅Ge₃O₁₁ single crystal for ordinary and extraordinary light beams. Ellipsometric spectra Ψ(λ), ∆(λ) was measured for Pb₅Ge₃O₁₁ optical crystal in the spectral range 388-620 nm. Mathematical model was developed taking into account optical anisotropy and surface roughness of the measured specimen. Nonlinear regression method was applied in order to fit experimental and modeled data. Refractive index spectra no(λ) ne(λ) are determined for Pb₅Ge₃O₁₁ single crystal for ordinary and extraordinary light beams.

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Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.