Wedge-cell technique as a simple and effective method for chromatic dispersion determination of liquid crystals

Katarzyna Rutkowska , Kamil Orzechowski , Marek Sierakowski

Abstract

In this letter we present a wedge-cell method and then compare it with other techniques that can be used to determinate refractive indices of liquid crystalline materials. This simple goniometric technique is of particular significance when used for liquid crystalline materials characterized by high refractive indices, for which refractometric methods are approaching their upper limits. Importantly, a measurement technique proposed here requires relatively small amount of a liquid crystalline material and gives appropriate results for different light sources from the wide spectral range, allowing thus for chromatic dispersion curves (in different temperatures) to be obtained. © 2016 Photonics Society of Poland.
Author Katarzyna Rutkowska ZOiF
Katarzyna Rutkowska,,
- Optics and Photonics Division
, Kamil Orzechowski ZOiF
Kamil Orzechowski,,
- Optics and Photonics Division
, Marek Sierakowski ZOiF
Marek Sierakowski,,
- Optics and Photonics Division
Journal seriesPhotonics Letters of Poland, ISSN 2080-2242
Issue year2016
Vol8
No2
Pages51-53
Keywords in EnglishChromatic dispersion; Crystalline materials; Dispersion (waves); Light sources; Liquid crystals; Liquids; Refractive index, Different lights; High refractive index; Liquid crystalline materials; Measurement techniques; Upper limits; Wedge cells; Wide spectral range, Dispersions
DOIDOI:10.4302/plp.2016.2.08
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977109200&partnerID=40&md5=74e2c1d3ac8ee3181fc0cd29af046222
Languageen angielski
Score (nominal)10
ScoreMinisterial score = 7.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 10.0, 28-11-2017, ArticleFromJournal
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