Determination of piezooptic coefficient Pi/14/ of LiNbO3 crystals under torsion loading

Vasylkiv, Yu; Savaryn, V.; Smaga, I.; Skab, I.; Vlokh, R.

doi:10.3116/16091833/11/3/156/2010

Cited by 7 publications

(1 citation statement)

References 8 publications

(12 reference statements)

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“…As already mentioned, we have earlier demonstrated that a spatial distribution of optical birefringence induced by the torsion stresses reveals a singular point of zero birefringence, which belongs to the torsion axis [15][16][17][18][19]. In general, the coordinate distribution of the torsioninduced birefringence has a conical shape.…”

Section: Basic Relations and Results Of Simulationmentioning

confidence: 97%

Spin-to-orbital momentum conversion via electro-optic Pockels effect in crystals

et al. 2011

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In the present work we have demonstrated a possibility for real-time operation by orbital angular momentum (OAM) of optical beams via Pockels effect in solid crystalline materials.Basing on the analysis of optical Fresnel ellipsoid perturbed by conically shaped electric field, we have shown that the point groups of crystals convenient for the conversion of spin angular momentum (SAM) to OAM should contain a three-fold symmetry axis or a six-fold inversion axis. The results of our experimental studies and theoretical simulations of the SAM-to-OAM conversion efficiency carried out for LiNbO 3 crystals agree well with each other.

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Section: Basic Relations and Results Of Simulationmentioning

confidence: 97%

Spin-to-orbital momentum conversion via electro-optic Pockels effect in crystals

et al. 2011

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Interferometric technique for controlling wedge angle and surface flatness of optical slabs

Andrushchak

Voronyak

Andrushchak

et al. 2013

Optics and Lasers in Engineering

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Optical anisotropy induced by torsion stresses in LiNbO_3 crystals: appearance of an optical vortex

et al. 2011

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We report the results of studies of torsion effect on the optical birefringence in LiNbO 3 crystals. We have found that twisting of those crystals causes a birefringence distribution revealing non-trivial peculiarities. In particular, it has a special point at the center of cross section perpendicular to the torsion axis where zero birefringence value occurs. It has also been ascertained that the surface of the spatial birefringence distribution has a conical shape, with the cone axis coinciding with the torsion axis.We have revealed that an optical vortex, with the topological charge equal to unity, appears under the torsion of LiNbO 3 crystals. It has been shown that, contrary to the q-plate, both the efficiency of spin-orbital coupling and the orbital momentum of the emergent light can be operated by the torque moment.

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Determination of piezooptic coefficient Pi/14/ of LiNbO3 crystals under torsion loading

Abstract: We show that non-principal piezooptic coefficients can be quite accurately determined after a distribution of shear strain components under torsion of LiNbO 3 crystal rod has been studied. The piezooptic coefficient 14

Cited by 7 publications

References 8 publications

Spin-to-orbital momentum conversion via electro-optic Pockels effect in crystals

Spin-to-orbital momentum conversion via electro-optic Pockels effect in crystals

Interferometric technique for controlling wedge angle and surface flatness of optical slabs

Optical anisotropy induced by torsion stresses in LiNbO_3 crystals: appearance of an optical vortex

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