Influence of the size of nanoparticles doped in series of azopolymers on the photoinduced birefringence

Dimana Nazarova; Lian Nedelchev; Violeta Dragostinova; Nataliya Berberova

doi:10.1117/12.2013646

15 March 2013 Influence of the size of nanoparticles doped in series of azopolymers on the photoinduced birefringence

Dimana Nazarova, Lian Nedelchev, Violeta Dragostinova, Nataliya Berberova

Proceedings Volume 8770, 17th International School on Quantum Electronics: Laser Physics and Applications; 877009 (2013) https://doi.org/10.1117/12.2013646
Event: Seventeenth International School on Quantum Electronics: Laser Physics and Applications, 2012, Nessebar, Bulgaria

Abstract

In this paper we present a study of the photoinduced anisotropy in novel nanocomposite films of azopolymers doped with ZnO nanoparticles with different sizes – 50 and 100 nm. The photoresponse was evaluated by classical polarimetric setup with two crossed polarizers, recording laser with wavelength 473 nm and probe He-Ne laser. Our experimental results indicate that doping with both 50 and 100 nm sized particles improves the response time, however the smaller size nanoparticles provide increase of Δn_max with up to 40%, as the 100 nm particles reduce the saturated value of the birefringence, due to the higher scattering.

Citation Download Citation

Dimana Nazarova, Lian Nedelchev, Violeta Dragostinova, and Nataliya Berberova "Influence of the size of nanoparticles doped in series of azopolymers on the photoinduced birefringence", Proc. SPIE 8770, 17th International School on Quantum Electronics: Laser Physics and Applications, 877009 (15 March 2013); https://doi.org/10.1117/12.2013646

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