Optical properties of a liquid crystal with small ordinary and extraordinary refractive indices and small optical anisotropy

Autor:	Wiktor Piecek, Katarzyna Garbat, Jerzy Kedzierski, Zbigniew Raszewski, Marek Andrzej Kojdecki, Emilia Miszczyk, Leszek R. Jaroszewicz, Krystian Kowiorski, Jerzy Zielinski, Roman Dąbrowski
Rok vydání:	2014
Předmět:	Radiation Materials science Birefringence Condensed matter physics Biaxial nematic Mathematical model business.industry Wedge (geometry) law.invention Crystal Optics law Liquid crystal General Materials Science Abbe refractometer Electrical and Electronic Engineering business Refractive index
Zdroj:	Opto-Electronics Review. 22
ISSN:	1896-3757
DOI:	10.2478/s11772-014-0196-9
Popis:	Optical properties of a nematic liquid crystal with small refractive index and small birefringence were studied. The ordinary and extraordinary refractive indices and birefringence were measured as functions of temperature by using an Abbe refractometer and wedge nematic cells. From values of these indices the nematic orientational order parameter was calculated by using several methods and corresponding mathematical models. Kuczyński et al. method was found to be suitable for determining the order parameter also for materials featuring small ordinary refractive index, with unknown density.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d49b2bb13e2c5b34e48683327c3d2519 https://doi.org/10.2478/s11772-014-0196-9 Zobrazit plný text záznamu Full text from SpringerLink