Studies on the effective nonlinear coefficient of GdCa4O(BO3)3 crystal

Zhang, Shujun; Cheng, Zhenxiang; Lu, Junhua; Li, Guangming; Lu, Jianren; Shao, Zongshu; Chen, Huanchu

doi:10.1016/s0022-0248(99)00283-3

Cited by 45 publications

(22 citation statements)

References 7 publications

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“…For example, the creation of a new thermo-stable sensor, and SAW devices is possible now using new ternary oxide crystals with the "langasite" structure, D 3 [2,3,[30][31][32]66,67,149]. The new acentric crystal zinc metaborate is also thermo-stable [100].…”

Section: Discussionmentioning

confidence: 99%

“…Besides moderate nonlinear optical (NLO) susceptibility χ (2) , acentric borate crystals are widely used in optoelectronics for the efficient optical frequency conversion in the visible and ultraviolet (UV) spectral ranges, and the creation of self-frequency-doubling lasers because of their high transparency and high optical damage threshold [4][5][6][14][15][16][17][18][19]56,66,67,. More 220 simple and binary acentric borate crystals, including new complex borate-carbonate, borate-nitrate, borate-acetate, hydroxyl-borate, borate-sulfate, borate-phosphate, borate-silicate, borate-fluoride, and other compounds with several different cations or anions [14][15][16][17]56, are currently known.…”

Section: Interrelationship "Composition-structure-oxide Bond Length-nmentioning

confidence: 99%

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Comparative Interrelationship of the Structural, Nonlinear-Optical and Other Acentric Properties for Oxide, Borate and Carbonate Crystals

Kidyarov

2017

Crystals

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Abstract:The structure and the maximal nonlinear optical (NLO) susceptibility χ (2) are tabulated for more 700 acentric binary oxides, 220 crystals of simple, binary and complex borates and for the same set of 110 carbonates, tartrates, formates, oxalates, acetates and fluoride-carbonates used in ultraviolet and deep ultraviolet optoelectronics. According to the chemical formula, the structural symbols of these crystals have been plotted on the plane of two minimal oxide bond lengths (OBL). It is shown that acentric crystals are positioned on such plane inside the vertical, horizontal and slope intersected ellipses of "acentricity". The oxide and borate crystals with moderate NLO susceptibility are found in the central parts of these ellipses intersection and, with low susceptibility, on top, at the bottom and border of the ellipses rosette. The nonpolar fluoride-carbonate crystals with high NLO susceptibility are found in the curve-side rhombic parts of the slope ellipse of "acentricity". The unmonotonous fuzzy dependence "χ (2) " on the OBL of these crystals is observed, and their clear-cut taxonomy on compounds with π-or σ-oxide bonds is also established. It is shown that the correlations of χ (2) with other acentric properties are nonlinear for the whole set of the oxide crystals having their clear maximum at a certain value of the piezoelectric or electro-optic coefficient. The correlation "hardness-thermoconductivity-fusibility" is plotted for oxide crystals, part of which is used at the creation of self-frequency-doubling solid state lasers.

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Section: Discussionmentioning

confidence: 99%

Section: Interrelationship "Composition-structure-oxide Bond Length-nmentioning

confidence: 99%

Comparative Interrelationship of the Structural, Nonlinear-Optical and Other Acentric Properties for Oxide, Borate and Carbonate Crystals

Kidyarov

2017

Crystals

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“…These crystals show the merits of high melting points (1400-1700 °C) and high effective piezoelectric coefficients d eff (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) pC/N) [20][21][22][23][24][25][26]; the evaluations of the temperature dependence of dielectric, piezoelectric and electromechanical properties, however, are limited. Of particular significance is that the monoclinic rare-earth calcium oxyborate crystals (ReCa 4 O(BO 3 ) 3 , ReCOB, Re: rare earth), which have been extensively investigated for nonlinear optical applications in the last two decades [27][28][29][30][31][32][33], were reported to exhibit good piezoelectric properties and high electrical resistivity at an elevated temperature of 1000 °C, with no phase transition prior to their melting points (~1400-1520 °C) [1][2][3][34][35][36][37][38]. Table 1 summarizes the basic characteristics of various high temperature piezoelectric crystals in monoclinic, trigonal and tetragonal systems, where the monoclinic ReCOB crystals were found to exhibit relatively high melting points, as well as relatively large piezoelectric coefficients, promising high temperature piezoelectric sensor applications.…”

Section: Open Accessmentioning

confidence: 99%

Rare-Earth Calcium Oxyborate Piezoelectric Crystals ReCa4O(BO3)3: Growth and Piezoelectric Characterizations

Duan

Zhang

et al. 2014

Crystals

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Rare-earth calcium oxyborate crystals, ReCa 4 O(BO 3 ) 3 (ReCOB, Re = Er, Y, Gd, Sm, Nd, Pr, and La ), are potential piezoelectric materials for ultrahigh temperature sensor applications, due to their high electrical resistivity at elevated temperature, high piezoelectric sensitivity and temperature stability. In this paper, different techniques for ReCOB single-crystal growth are introduced, including the Bridgman and Czochralski pulling methods. Crystal orientations and the relationships between the crystallographic and physical axes of the monoclinic ReCOB crystals are discussed. The procedures for dielectric, elastic, electromechanical and piezoelectric property characterization, taking advantage of the impedance method, are presented. In addition, the maximum piezoelectric coefficients for different piezoelectric vibration modes are explored, and the optimized crystal cuts free of piezoelectric cross-talk are obtained by rotation calculations.

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“…In the past decades, some novel NLO crystals such as LiB 3 O 5 (LBO), b-BaB 2 O 4 (BBO) and KTiOPO 4 (KTP) have been developed for efficient SHG of Nd-type lasers. Nevertheless, the exploration for new crystals with even higher efficiency, higher laser damage threshold has never been stopped [1], especially for those used in deep UV region. BiB 3 O 6 (abbr.…”

Section: Introductionmentioning

confidence: 99%