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  • Applied Spectroscopy
  • Vol. 76,
  • Issue 5,
  • pp. 590-598
  • (2022)

A New Simple Analytical Method for a Highly Accurate Determination of the Optical Parameters of a Slab from Transmittance Data

Huy V. Mai, Alexandre Jaffré, Khai M. Doan, Thien D. Trinh, and Olivier Schneegans

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Abstract

To date, determining with high accuracy the optical parameters (extinction coefficient k and refractive index n) of a slab from the sole transmittance data requires an inverse method based on numerical iteration procedures. In this paper, we propose a new inverse analytical method of extracting (k, n) without numerical iterative processes. The high accuracy of this new inverse method is assessed, and as an application example, the optical parameters of CaF2 and Si substrates are determined in the IR spectral range of 4–8 µm.

© 2022 The Author(s)

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Supplementary Material (5)

NameDescription
Supplement 1       sj-pdf-1-asp-10.1177_00037028211068078 – Supplemental Material for A New Simple Analytical Method for a Highly Accurate Determination of the Optical Parameters of a Slab from Transmittance Data
Supplement 2       sj-txt-2-asp-10.1177_00037028211068078 – Supplemental Material for A New Simple Analytical Method for a Highly Accurate Determination of the Optical Parameters of a Slab from Transmittance Data
Supplement 3       sj-txt-3-asp-10.1177_00037028211068078 – Supplemental Material for A New Simple Analytical Method for a Highly Accurate Determination of the Optical Parameters of a Slab from Transmittance Data
Supplement 4       sj-txt-4-asp-10.1177_00037028211068078 – Supplemental Material for A New Simple Analytical Method for a Highly Accurate Determination of the Optical Parameters of a Slab from Transmittance Data
Supplement 5       sj-txt-5-asp-10.1177_00037028211068078 – Supplemental Material for A New Simple Analytical Method for a Highly Accurate Determination of the Optical Parameters of a Slab from Transmittance Data

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