Windows
Thin Film Measurement App displays two plots in the Transmission graph: the measured transmission data and the calculated reflectance data.
- The measured transmission plot represents the actual transmission values obtained from the spectrometer at different wavelengths. These values are measured directly during the experiment and provide information about the light that passes through the thin film sample.
- The calculated reflectance plot is derived from the transfer matrix calculations based on the entered refractive index values and layer thickness. It represents the expected reflectance values of the thin film at each wavelength.
By plotting both the measured transmission data and the calculated reflectance data on the graph, users can compare and assess the agreement between the experimental results and the theoretical predictions. This allows for the evaluation of the accuracy and reliability of the thin film measurement and analysis.
The Data window in the Thin Film Measurement App includes a functionality to find high correlation between the calculated reflectance and the measured reflectance. This correlation analysis assists in estimating the thickness of the film. To perform the measurement, click on the “Measure” button.
By comparing the calculated reflectance data, derived from the transfer matrix calculations, with the measured reflectance data obtained from the spectrometer, the app determines the degree of correlation between the two. It identifies the reflectance spectra that exhibit a strong correlation, indicating a closer match between the calculated and measured values.
Based on the highly correlated reflectance spectra, the app provides an estimation of the film thickness. This estimation takes into account the correlation analysis and allows users to determine the thickness of the thin film more accurately.
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