The spectral complex optical constants in the visible and the near-infrared region of VO2 and V1-xWxO2 films deposited on glass substrates were determined from observed reflectance and transmittance spectra for which the least-squares method was used. In the metallic phase, the optical properties were characterized by the Drude model in wavelength regions longer than 750 nm. (C) 1998 Optical Society of America. [References: 12]
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