A1 Journal article (refereed), original research

Determination of complex refractive index of SU-8 by Kramers-Kronig dispersion relation method at the 2.5 – 22.0 µm


Open Access publication

Publication Details
Authors: Ashraf Shakeel, Niskanen Ilpo, Kanyathare Boniphace, Vartiainen Erik, Mattsson Claes, Heikkilä Rauno, Thungström Göran
Publisher: Elsevier
Publication year: 2018
Language: English
Related Journal or Series Information: Journal of Quantitative Spectroscopy and Radiative Transfer
Volume number: 224
Start page: 309
End page: 311
Number of pages: 3
ISSN: 0022-4073
eISSN: 1879-1352
JUFO-Level of this publication: 2
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe2018121150479

Abstract

Accurate determination of the complex refractive index of SU-8 epoxy has significant for the wide variety of applications in optical sensor technology at IR range. The complex refractive index of SU-8 is determined by recording the transmission of light spectra for the wavelength range of 2.5 – 22.0 µm. The data analysis is based on the Kramers-Kronig dispersion relation method. The method has several merits, such as ease of operation, non-contact technique, measurement accuracy, and rapid measurement. The present method is not restricted to the case of SU-8 but it is also proposed to be applicable across a broad range of applications, such as assessment of the optical properties of paints and biomedical samples.


Last updated on 2019-10-10 at 14:41