title: Lithium niobate nanoparticle-coated Y-coupler optical fiber for enhanced electro-optic sensitivity.
abstract: 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.
authors: Ch N
authors: ChN
authors: Rao
authors: S B
authors: SB
authors: Sagar
authors: N G
authors: NG
authors: Harshitha
authors: Radhamanohar
authors: R
authors: Aepuru
authors: S
authors: S
authors: Premkumar
authors: H S
authors: HS
authors: Panda
authors: R K
authors: RK
authors: Choubey
authors: S N
authors: SN
authors: Kale