What question did this study set out to answer?

To develop a universal computational approach for extracting the complex dielectric function from experimentally accessible linear optical measurements.

July 20, 2005Review of Scientific InstrumentsOpen Access

Kramers–Kronig constrained variational analysis of optical spectra

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Authors

AKAlexey B. KuzmenkoUniversity of Geneva

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Implication

Methodological study reveals a universal dielectric function extraction method across optical spectra, highlighting broad utility for thin films and anisotropic crystals.

Key Points

To develop a universal computational approach for extracting the complex dielectric function from experimentally accessible linear optical measurements.
Parameterized the imaginary dielectric component independently across nodes on an anchor frequency mesh.
Dynamically coupled the real dielectric component to the imaginary component using the Kramers–Kronig transformation.
Formulated the method as a limiting case of multioscillator fitting with oscillator density scaling to experimental data point density.
Produced results identical to conventional Kramers–Kronig analysis when applied to normal-incidence reflectivity from semi-infinite isotropic media.
Operated without readaptation across diverse linear-response setups, including thin films, anisotropic crystals, transmission, reflectivity, and ellipsometry.

Cite This Study

Alexey B. Kuzmenko (2005) studied this question.

synapsesocial.com/papers/69dec2075e217d93a55585c8 https://doi.org/10.1063/1.1979470

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July 20, 2005Review of Scientific InstrumentsOpen Access

Kramers–Kronig constrained variational analysis of optical spectra

View Full Paper

Ask AI

Bookmark

Authors

AKAlexey B. KuzmenkoUniversity of Geneva

Discussion

Member takes

Implication

Methodological study reveals a universal dielectric function extraction method across optical spectra, highlighting broad utility for thin films and anisotropic crystals.

Key Points

To develop a universal computational approach for extracting the complex dielectric function from experimentally accessible linear optical measurements.
Parameterized the imaginary dielectric component independently across nodes on an anchor frequency mesh.
Dynamically coupled the real dielectric component to the imaginary component using the Kramers–Kronig transformation.
Formulated the method as a limiting case of multioscillator fitting with oscillator density scaling to experimental data point density.
Produced results identical to conventional Kramers–Kronig analysis when applied to normal-incidence reflectivity from semi-infinite isotropic media.
Operated without readaptation across diverse linear-response setups, including thin films, anisotropic crystals, transmission, reflectivity, and ellipsometry.

Cite This Study

Alexey B. Kuzmenko (2005) studied this question.

synapsesocial.com/papers/69dec2075e217d93a55585c8 https://doi.org/10.1063/1.1979470

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