Dejan Bošnjaković (Avtor), Marko Gregorc (Avtor), Hui Li (Avtor), Martin Čopič (Avtor), Valentina Domenici (Avtor), Irena Drevenšek Olenik (Avtor)

Povzetek

An appealing property of optical diffractive structures from elastomeric materials is a possibility to regulate their optical patterns and consequently also their diffractive features with mechanical straining. We investigated the effect of strain on diffraction characteristics of holographic gratings recorded in a monodomain side-chain liquid crystalline elastomer. The strain was imposed either parallel or perpendicular to the initial alignment direction of the material. At temperatures far below the nematic–paranematic phase transition, straining along the initial alignment affects mainly the diffraction pattern, while the diffraction efficiency remains almost constant. In contrast, at temperatures close to the nematic–paranematic phase transition, the diffraction efficiency is also significantly affected. Straining in the direction perpendicular to the initial alignment strongly and diversely influences both the diffraction pattern and the diffraction efficiency. The difference between the two cases is attributed to shear–stripe domains, which form only during straining perpendicular to the initial alignment and cause optical diffraction that competes with the diffraction from the holographic grating structure.

Ključne besede

optika;uklon;holografske mrežice;tekočekristalni elastomeri;optics;diffraction;holographic gratings;liquid crystalline elastomers;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 535
COBISS: 3224420 Povezava se bo odprla v novem oknu
ISSN: 2076-3417
Št. ogledov: 170
Št. prenosov: 62
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: optika;uklon;holografske mrežice;tekočekristalni elastomeri;
Vrsta dela (COBISS): Članek v reviji
Strani: 13 str.
Letnik: ǂVol. ǂ8
Zvezek: ǂart. no. ǂ1330
Čas izdaje: Aug. 2018
DOI: 10.3390/app8081330
ID: 13595033