Lithium niobate nanoparticle-coated Y-coupler optical fiber for enhanced electro-optic sensitivity

Rao, Ch. N.; Sagar, S. B.; Harshitha, N. G.; Aepuru, Radhamanohar; Premkumar, S.; Panda, H. S.; Choubey, R. K.; Kale, S. N.


Single crystals of lithium niobate (LiNbO3), possessing high birefringence and anisotropic properties have been explored, for a long time, to harness their excellent electro-optic properties. However, their nanoforms are comparatively less explored. In this context, dielectric constant and polarization (P) versus electric-field (E) characteristics of LiNbO3 nanomaterials have been studied. A nonideal P-E loop and a dielectric constant of 20 at the onset of 1 kHz were seen. The electro-optic sensitivity was found to be 4 times as compared to the bulk LiNbO3 crystals. The results are attributed to oxygen vacancies, antisite defects, and grain boundary effects in an already congruent structural matrix of LiNbO3. (C) 2015 Optical Society of America

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Título según WOS: ID WOS:000349848400014 Not found in local WOS DB
Título de la Revista: OPTICS LETTERS
Volumen: 40
Número: 4
Fecha de publicación: 2015
Página de inicio: 491
Página final: 494


Notas: ISI