@article{BENATTO2024109100,
title = {RI−Calc: A user friendly software and web server for refractive index calculation},
author = {Leandro Benatto and Omar Mesquita and Lucimara S. Roman and Marlus Koehler and Rodrigo B. Capaz and Graziâni Candiotto},
url = {https://www.sciencedirect.com/science/article/pii/S0010465524000237},
doi = {https://doi.org/10.1016/j.cpc.2024.109100},
issn = {0010-4655},
year = {2024},
date = {2024-01-26},
urldate = {2024-01-01},
journal = {Computer Physics Communications},
volume = {298},
pages = {109100},
abstract = {The refractive index of an optical medium is essential for studying a variety of physical phenomena. One useful method for determining the refractive index of scalar materials (i.e., materials which are characterized by a scalar dielectric function) is to employ the Kramers−Kronig (K−K) relations. The K−K method is particularly useful in cases where ellipsometric measurements are unavailable, a situation that frequently occurs in many laboratories. Although some packages can perform this calculation, they usually lack a graphical interface and are complex to implement and use. Those deficiencies inhibit their utilization by a plethora of researchers unfamiliar with programming languages. To address the aforementioned gap, we have developed the Refractive Index Calculator (RI−Calc) program that provides an intuitive and user−friendly interface. The RI−Calc program allows users to input the absorption coefficient spectrum and then easily calculate the complex refractive index and the complex relative permittivity of a broad range of thin films, including of molecules, polymers, blends, and perovskites. The program has been thoroughly tested, taking into account the Lorentz oscillator model and experimental data from a materials' refractive index database, demonstrating consistent outcomes. It is compatible with Windows, Unix, and macOS operating systems. You can download the RI−Calc binaries from our GitHub repository or conveniently access the program through our dedicated web server at nanocalc.org.},
keywords = {Absorption coefficient, Kramers−Kronig, Lorentz oscillator model, Refractive index},
pubstate = {published},
tppubtype = {article}
}
