journal article·2024-04Open access

Determination of the extinction coefficients of CR-39, MR-8, and MR-10 organic glasses in the near-ultraviolet to visible region

Noémie Gambaudo, Patrice Twardowski, Matthias Pauly, Philippe Gérard, Romain Jagu, Manuel Flury

Optical Materials· Volume 150

Abstract

The extinction coefficients of three commercial organic glasses referenced CR-39, MR-8 and MR-10 were determined from reflectance and transmittance spectra in the near-UV to visible region, using two different approaches. The first approach consists in the optimization of the extinction coefficient to fit the calculated transmittance to the optical measurements with a UV–Visible spectrometer. The second approach uses a simplified analytical expression of the extinction coefficient as a function of transmittance proposed in an article by S. Nemoto. The two calculation methods are compared and discussed. A table of complex refractive indices (including the determined extinction coefficients) is provided in the appendix, for open use.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Glass properties and applications · Pigment Synthesis and Properties · Spectroscopy and Chemometric Analyses

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (17)

Show source-provided references
1. Refractive index measurement and its applications10.1238/Physica.Regular.065a00167 ↗
2. Multiple reflections in an approximately parallel plate10.1016/S0030-4018(97)00138-7 ↗
3. Optical properties of wavelength shifting panels10.1016/0168-9002(93)91052-O ↗
4. A new method of finding the optical constants of a solid from the reflectance and transmittance spectrograms of its slab10.1016/S0030-4018(99)00721-X ↗
5. Comparison of transmittance and reflection methods for solving optical constants of optical glass10.1016/j.ijleo.2018.12.115 ↗
6. Optical properties of zinc selenide slabs at 373 and 423 K in the wavelength 2–15 μm10.1016/j.ijleo.2016.03.079 ↗
7. Measured optical constants of ZnSe glass from 0.83 μm to 2.20 μm by a novel transmittance method10.1016/j.ijleo.2013.04.001 ↗
8. « Complex refractive index of a slab from reflectance and transmittance: analytical solution10.1088/1464-4258/4/4/306 ↗
9. Determination of optical parameters for amorphous thin film materials on semitransparent substrates from transmittance and reflectance measurements10.1088/0022-3727/24/11/028 ↗
10. Determination of the complex refractive index of a thick slab material from its spectral reflectance and transmittance at normal incidence10.1016/j.ijleo.2011.11.039 ↗
11. Dispersive parameters for complex refractive index of p- and n-type silicon from spectrophotometric measurements in spectral range 200–2500nm10.1016/j.optlastec.2014.07.014 ↗
12. A new simple analytical method for a highly accurate determination of the optical parameters of a slab from transmittance data10.1177/00037028211068078 ↗
13. 2023
14. Determination of the extinction coefficient of weakly absorbing dielectrics in the near-ultraviolet region10.1364/AO.33.005068 ↗
15. « Tuning of the refractive index and optical band gap of CR-39 polymers by heating10.1080/10420151003587385 ↗
16. CR-39 (PADC) reflection and transmission of light in the ultraviolet–near-infrared (UV–NIR) range10.1177/0003702817745071 ↗
17. Born · 1999