Figure 2. Reflectivity data for 20 nm Nichrome film at 633 nm wavelength. The next two figures show the results for the reflectivity at 1550 nm wavelengths for the two thickness values. In both cases, the data looks very similar for the 1320 nm wavelengths. Dielectric functions for the nichrome film at 1320 nm and 1550 nm wavelengths are 3.2 + 41i and 3.5 + 45i, respectively. While the 50 nm film shows an absorption feature for 633 nm excitation wavelength, it displays a reflection maximum at longer excitation wavelengths, albeit less dramatic than the reflection peak for the 20 nm film. Figure 3. Reflectivity data for 50 nm Nichrome film at 633 nm wavelength. 226
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