Conversion of retardation dispersion in self-organized smectic reactive mesogen compound and its dependence on the UV polymerization temperature and the molecular orientation.
Opt Express
; 26(8): 10661-10668, 2018 Apr 16.
Article
em En
| MEDLINE
| ID: mdl-29715999
ABSTRACT
We investigated the dependence of the dispersion of retardation on the UV-polymerization temperature and the molecular orientation in a self-organized smectic host-guest reactive mesogen (RM) compound. The positive dispersion of retardation was converted to the negative dispersion of retardation with decreasing the UV-polymerization temperature. From the Fourier-transform infrared (FT-IR) dichroism measurement, it was found that more fractions of the guest molecules were aligned parallel to the smectic layer plane with decreasing the UV-polymerization temperature. The guest molecules located in the inter-layer space absorb a longer wavelength of UV light compared to the host and induce the negative dispersion of retardation.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article