determining the refractive index of scandium oxide in the euv using kramers-kronig on thin-film...
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Determining the refractive index of scandium oxide in the EUV using Kramers-Kronig on thin-film transmission data. Jacque Jackson. multilayer mirror. normalized data. Kramers-Kronig Dispersion Relations. Graph of the percent difference between the two. - PowerPoint PPT PresentationTRANSCRIPT
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Determining the refractive index of scandium oxide in the EUV using Kramers-Kronig on thin-film transmission data
Jacque Jackson
![Page 2: Determining the refractive index of scandium oxide in the EUV using Kramers-Kronig on thin-film transmission data](https://reader036.vdocuments.site/reader036/viewer/2022062310/568167e2550346895ddd44a6/html5/thumbnails/2.jpg)
multilayer mirror
![Page 3: Determining the refractive index of scandium oxide in the EUV using Kramers-Kronig on thin-film transmission data](https://reader036.vdocuments.site/reader036/viewer/2022062310/568167e2550346895ddd44a6/html5/thumbnails/3.jpg)
![Page 4: Determining the refractive index of scandium oxide in the EUV using Kramers-Kronig on thin-film transmission data](https://reader036.vdocuments.site/reader036/viewer/2022062310/568167e2550346895ddd44a6/html5/thumbnails/4.jpg)
normalized data
![Page 5: Determining the refractive index of scandium oxide in the EUV using Kramers-Kronig on thin-film transmission data](https://reader036.vdocuments.site/reader036/viewer/2022062310/568167e2550346895ddd44a6/html5/thumbnails/5.jpg)
Kramers-Kronig Dispersion Relations
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Graph of delta from synthetic data and the KK calculated from the synthetic beta data
Graph of the percent difference between the two
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Graph of RTdelta and the KK calculated from the RT beta
Graph of the percent difference between the two
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Results of truncating the data set
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Results of truncating the data set
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Results of KK analysis on RT beta data that has not been smoothed
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Results of KK analysis on RT beta data that has been smoothed
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Results of KK analysis on RT beta data that has not been augmented with CXRO data – plotted with the RT and CXRO delta data
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Results of KK analysis for density of 3.2 g/cm3 – For this density, the KK calculation is less than the experimental calculation, but with a similar shape, at lower energies and follows
neither CXRO nor experimental values at higher energies.
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Results of KK analysis for density of 3.86 g/cm3 – For this density, the KK calculation is greater than the experimental calculation, but with a similar shape, at
lower energies and matches CXRO values more closely at higher energies.
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Percent difference between RT delta and delta calculated from KK analysis on RT beta augmented with synthetic data
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Graph of the delta calculated from KK analysis on RT beta augmented with synthetic data, plotted with the RT delta and the delta provided by CXRO for
the density being used (3.86 g/cm^3)
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Future Research
• Obtain data below 30 eV• Account for roughness in calculations• Use this method on other materials with
features at different energies• Check on the reliability of data obtained
from CXRO
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Acknowledgements
• Dr. Allred• Dr. Turley• Guillermo Acosta