Determination of intrinsic polarization for K2ZnCl4 single crystal grown by Czochralski technique for ferroelectric applications

Kumar, Sonu; Ray, G. Joseph; Sinha, Nidhi; Kumar, Binay

doi:10.1016/j.matchemphys.2017.01.005

Cited by 6 publications

(1 citation statement)

References 53 publications

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“…This has been accomplished for a few materials, namely, β-BaB 2 O 4 (BBO), LiB 3 O 5 (LBO), KH 2 PO 4 (KDP), KTiOPO 4 (KTP), LiNbO 3 (LN), ZnGeP 2 , and AgGaSe 2 . Large single crystals, that have been indexed, enable one to measure accurately a host of physical properties including refractive indices, and thus birefringence, − NLO coefficients, − NLO properties including phase-matching angles at second-order and higher harmonic generation, − polarization magnitude, , phase-matching wavelength ranges, − , thermal properties including thermal expansion, specific heat, thermal diffusivity, and thermal conductivity. − There are a variety of methods in which large single crystals can be grown including Czochralski, , Bridgman, − top-seeded solution growth, − ,− transport, , and hydrothermal methods. − However, no single method is suitable for growing all types of crystals.…”

Section: Introductionmentioning

confidence: 99%

Crystal Growth and Linear and Nonlinear Optical Properties of KIO₃·Te(OH)₆

Zhang

et al. 2017

Crystal Growth & Design

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A single crystal of the nonlinear optical material KIO3·Te(OH)6 (KTI) with dimensions of 37 × 7 × 5 mm3 was successfully grown at room temperature by slow evaporation. Linear and nonlinear optical measurements were performed on these crystals. Rocking curve measurements indicate that the single crystal is of high quality with a full width at half-maximum (fwhm) of 0.023° (82 arcseconds) from the (010) reflection. Refractive index measurements revealed a birefringence of 0.0545 @ 1064 nm. Through the refractive index measurements and the fitted Sellmeier equations, we determined the Type I and Type II phase-matching wavelength ranges. KTI is Type I (Type II) phase-matchable with a fundamental wavelength range from 674–3266 nm (880–2260 nm). Powder second-harmonic generation (SHG) measurements indicate an SHG intensity of 1.2× KH2PO4 (KDP). SHG coefficients were determined by the Maker fringe method on cut and polished (100) and (010) single crystal wafers. The d 31 = 0.24 pm/V and d 32 = 0.73 pm/V were determined. Laser damage threshold (LDT) measurements were also performed, which indicates that KTI has an LDT of 731 MW/cm2 at 1064 nm with a 6 ns pulse width.

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