A Sharp Improvement of Sulfate's Birefringence Induced by the Synergistic Effect of Heteroleptic and Dimeric Strategies.

As for tetrahedron-based ultraviolet nonlinear optical crystals, it is so difficult to achieve a sufficient birefringence to satisfy the phase-matching condition. Thereover, it is necessary to greatly increase the polarizability anisotropy of tetrahedra. Meanwhile, the tetrahedra should be arranged as uniformly as possible.

Enhanced mechanical quality factor of BiScO-PbTiO piezoelectric ceramics using glass composition.

Compared with pure Pb-based perovskite ferroelectric materials, Bi(Me)O-PbTiO (Me = Sc, In, Yb) have attracted attention due to their remarkable advantage in their Curie temperature. Among them, BiScO-PbTiO piezoelectric ceramic is a potential piezoelectric material in high-temperature applications for its high Curie temperature and excellent piezoelectric coefficient. However, its shortcomings are high dielectric loss and low mechanical quality factor.

Complete Sets of Material Constants of [001]-Poled 0.72Pb(MgNb)O 0.28PbTiO Single Crystals Using Alternating Current Poling.

Alternating current poling (ACP) is an effective method to improve the piezoelectric performance of relaxor-PbTiO3 (PT) ferroelectric single crystal. 0.72Pb(Mg1/3Nb2/3)O3-0.

Broad bandwidth emission and in situ electric field modulation of photoluminescence in Nd-doped ferroelectric crystals.

The electric field modulation of photoluminescence in ferroelectric-optical materials as a novel in situ, non-damaging and real-time controllable method has drawn much research focus. The broad bandwidth emission of 33 nm and a tuneable luminescence contrast of 28% were achieved in Nd-doped Pb(MgNb)O-PbTiO (Nd:PMNT) tetragonal ferroelectric-optical crystals arising from spontaneous polarization. The study of Nd:PMNT ferroelectric crystals under a cyclic, triangular alternating current voltage wave showed that the change in the photoluminescence intensity subjected to an electric field is mainly related to the 180° domain distribution, rather than the 90° domain.

ZnBOCl: A New Deep-Ultraviolet Transparency Nonlinear Optical Crystal with Boracite Structure.

Nonlinear optical crystals play important roles in modern laser science and technology. However, the design and growth of new nonlinear optical (NLO) materials is still a challenging issue for researchers. Due to the excellent performance of MgBOCl crystal, we paid attention to the optimization of its structure, in order to find new NLO materials with favorable properties.

CaBOCl and SrBOCl: Nonlinear Optical Crystals with Deep-Ultraviolet Transparency Windows.

MBOX is a prominent family with excellent nonlinear optical (NLO) responses, just as the PbBOI crystal with a large second harmonic generation (SHG) of 13.5 times that of KHPO. However, most of these compounds are limited to ultraviolet and visible regions because of their long absorption edge (small band gap).

Short pulse eye-safe laser with a stimulated Raman scattering self-conversion based on a Nd:KGW crystal.

We present the results of a solid self-Raman laser based on a Nd:KGW crystal that is transversely pumped by laser diode bars. A beam of an eye-safe laser with a 31.8 mJ output energy and a 2.