Growth and electro-elastic properties of K(H1−xDx)2PO4single crystals

Liu, Baoan; Yin, Xian‐Hong; Xu, M.; Ji, Shaohua; Xu, Xin­guang; Zhang, Jianfeng

doi:10.1107/s0021889812013969

Cited by 11 publications

(6 citation statements)

References 17 publications

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“…The crystal damage in high-power laser systems may be induced by nonlinear effects, including multiphoton absorption, self-focusing and self-induced phase modulation. 16 These effects can seriously limit the application of crystals and output laser power. In particular, the relationship between the self-focusing effect and nonlinear refraction is quite close.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe³⁺on third-order optical nonlinearity of KDP single crystals

Wang

et al. 2016

CrystEngComm

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A series of trace Fe 3+ -doped KH 2 PO 4 single crystals were grown using the conventional temperature cooling method. The Fe 3+ ion content in the as-grown crystals and the corresponding transmission spectrum were measured, respectively. With an increase of Fe 3+ ion concentration, the transmittance of the crystal gradually decreases within the wavelength range of 200 nm to 370 nm. Under picosecond pulse laser irradiation, third-order nonlinear optical characteristics were systematically measured at λ = 532 nm. The existence of nonlinear absorption and nonlinear refraction was demonstrated. The results show that the nonlinear refractive index n 2 is positive, indicating the presence of a self-focusing effect for the asgrown crystals. Specially, nonlinear absorption and refraction have a heavy dependence on the Fe 3+ ion content and crystal directions (II and z). With increasing Fe 3+ ion concentration, a significant variation has been observed with respect to the nonlinear absorption coefficient β, nonlinear refractive index n 2 and third-order nonlinear susceptibility χ (3) . A similar pattern for II < z has been presented for nonlinear absorption and refraction. The investigations suggest that nonlinear absorption and refraction caused by distortion of the electron cloud might be associated with the H 2 PO 4 − and (FeO 4 ) 2− groups.

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Section: Introductionmentioning

confidence: 99%

Effect of Fe³⁺on third-order optical nonlinearity of KDP single crystals

Wang

et al. 2016

CrystEngComm

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“…These results are expected since the hydrogen (H) bond strength is weakened by the substitution of deuterium for hydrogen. 13,21 The hardness values of (001) face are larger than that of other two faces. The hardness values of (100) face are similar to the tripler face when the deuterium content is below 0.51.…”

Section: Dependence Of Hardness On Deuteration Levelmentioning

confidence: 98%

“…The procedure of crystal growth has been described elsewhere. 13 All crystals were grown from the same saturation temperature and were uniform in growth rate. The effective distribution coefficient of deuterium is described by the following exponential equation, k eff = 0.68 exp (0.00382M), where k eff is defined here as the mole% ratio of deuterium in the crystal to deuterium in the solution, M is the mole% deuterium in the solution.…”

Section: Crystal Growthmentioning

confidence: 99%

Study of the degree of deuteration on the microhardness of deuterated potassium dihydrogen phosphate crystals

et al. 2015

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A series of deuterated potassium dihydrogen phosphate (DKDP) crystals with different degrees of deuteration are grown from aqueous solution by the point-seed technique. The microhardness of (100), (001) and so-called 'tripler' faces for these DKDP crystals were measured. Initially the hardness number of (001) face for each crystal increases with the increase of the applied load until it reaches 25 g. With further increase in load, the hardness number decreases gradually. The hardness numbers decline with the increase in deuterium content. These composition dependences are expected since the bond strength is weakened by the substitution of deuterium for hydrogen. The hydrogen bond is considered to play the key role in effecting the crystal's hardness. The visible hardness anisotropy of the different faces is attributed to the inhomogeneous distribution of the oxygen-hydrogen bond on these faces.

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“…It is clear to see that the values of β along the I, II and z-direction vary from 1.62 × 10 −10 cm/W to 2.20 × 10 −10 cm/W, 1.47 × 10 −10 cm/W to 2.25 × 10 −10 cm/W, and 1.83 × 10 −10 cm/W to ( ) Upon analyzing Figures 5 and 6, the generation of nonlinear absorption for 70%-DKDP seems to be easier than KDP crystal. Similarly, the corresponding values of ∆ϕ 0 are obtained from the fitted results by using Equation (1). Through Equations (3) and 4, nonlinear parameters including β and χ (3) I (esu) were calculated, and are listed in Table 2.…”

Section: Nonlinear Absorption Characteristics Of 70%-dkdp Crystal At mentioning

confidence: 99%

“…KH 2 PO 4 (KDP) and KD 2−x H x PO 4 (DKDP) crystals, a kind of nonlinear optical material, find wide application as optical-electric conversion devices and multiple frequency converters [1][2][3][4]. They have wide applications in high-power laser systems, especially the Inertial Confinement Fusion system (ICF) [5,6].…”

Section: Introductionmentioning

confidence: 99%

Research on Nonlinear Absorption Effect in KDP and 70%-DKDP Crystals

Wang

et al. 2017

Crystals

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Nonlinear optical absorption effect in KDP and 70%-DKDP crystals, which were grown by the conventional temperature cooling method, was systematically studied using picosecond pulse laser excitation. Using open aperture Z-scan measurements, the dependence of nonlinear absorption effect on sample orientations (I, II, and z) as well as laser intensity was systematically measured at λ = 1064 and 532 nm. According to the experimental results, the nonlinear absorption effect at λ = 532 nm was confirmed, while at λ = 1064 nm no nonlinear absorption was observed for KDP and 70%-DKDP crystals. In addition, the optical absorption along I-and II-type affected by laser intensity was larger than that along the z-direction. The important nonlinear absorption coefficients β and χ (3) I (esu) measured along different orientations were exhibited in detail at wavelengths of 1064 nm and 532 nm. The results indicate that nonlinear absorption coefficients increase first and then decrease with the increment of laser intensity for KDP and 70%-DKDP crystals.

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Growth and electro-elastic properties of K(H_1−xD_x)₂PO₄single crystals

Cited by 11 publications

References 17 publications

Effect of Fe³⁺on third-order optical nonlinearity of KDP single crystals

Effect of Fe³⁺on third-order optical nonlinearity of KDP single crystals

Study of the degree of deuteration on the microhardness of deuterated potassium dihydrogen phosphate crystals

Research on Nonlinear Absorption Effect in KDP and 70%-DKDP Crystals

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Growth and electro-elastic properties of K(H1−xDx)2PO4single crystals

Cited by 11 publications

References 17 publications

Effect of Fe3+on third-order optical nonlinearity of KDP single crystals

Effect of Fe3+on third-order optical nonlinearity of KDP single crystals

Study of the degree of deuteration on the microhardness of deuterated potassium dihydrogen phosphate crystals

Research on Nonlinear Absorption Effect in KDP and 70%-DKDP Crystals

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Product

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Growth and electro-elastic properties of K(H_1−xD_x)₂PO₄single crystals

Effect of Fe³⁺on third-order optical nonlinearity of KDP single crystals

Effect of Fe³⁺on third-order optical nonlinearity of KDP single crystals