Interference investigations of liquid crystal-polymer composites structure

• Autorzy: Maksymyak P. , Negrych A. , Dolgov L. , Yaroshchuk O.
• Języki publikacji: EN

Abstrakty

EN

The methods of correlation optics are for the first time applied to study the structure of liquid crystal-polymer (LC-P) composites. Their phase correlation function (PCF) was obtained considering LC-P composite as a random phase screen. The amplitude of PCF contains information about the number of LC domains and structure of LC director inside of them, while a half-width of this function is connected with the size of these domains. In good agreement with previous studies by SEM technique we detected a monotone decrease of LC domains with polymer concentration. When applying the electric field, for the samples with ?P > 35 vol.% (PDLC morphology), the amplitude of PCF is monotonic. On the contrary, if ?P < 35 vol.% (PNLC morphology) the amplitude of PCF is non-monotonic and, depending on the applied voltage, goes through maximum.

Słowa kluczowe

EN

liquid crystal; PDLC; light scattering; correlation optics; phase correlation function; morphology

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2009
• Tom: Vol. 39, nr 3
• Strony: 571--578
• Opis fizyczny: bibliogr. 8 poz.,

Twórcy

autor

Maksymyak P.

autor

Negrych A.

autor

Dolgov L.

autor

Yaroshchuk O.

• Correlation Optics Dept, Chernivtsi University, 2 Kotsyubinsky Str., Chernivtsi, 58012, Ukraine

Bibliografia

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