The Experts below are selected from a list of 29478 Experts worldwide ranked by ideXlab platform
Shiv P Halasyamani - One of the best experts on this subject based on the ideXlab platform.
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design and synthesis of the beryllium free deep ultraviolet nonlinear Optical Material ba3 znb5o10 po4
ChemInform, 2016Co-Authors: Hongwei Yu, James M Rondinelli, Weiguo Zhang, Joshua Young, Shiv P HalasyamaniAbstract:The title compound is synthesized by solid state reaction of a stoichiometric mixture of BaCO3, ZnO, H3BO3, and NH4H2PO4 (Pt crucible, 840 °C, 72 h).
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design and synthesis of the beryllium free deep ultraviolet nonlinear Optical Material ba3 znb5o10 po4
Advanced Materials, 2015Co-Authors: Hongwei Yu, James M Rondinelli, Weiguo Zhang, Joshua Young, Shiv P HalasyamaniAbstract:Access to the elusive deep-ultraviolet by direct second harmonic generation (SHG) enabled by a new beryllium-free zincoborate-phosphate crystal is reported. Ba3(ZnB5O10)PO4, exhibits large SHG responses at 1064 and 532 nm and a short 180 nm absorption edge. Centimeter-size crystals are grown, and quantum mechanical calculations demonstrate the key role played by ZnO4 tetrahedra in the enhanced Optical responses.
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rbmgco3f a new beryllium free deep ultraviolet nonlinear Optical Material
Journal of the American Chemical Society, 2015Co-Authors: Thao T Tran, Jiangang He, James M Rondinelli, Shiv P HalasyamaniAbstract:A new deep-ultraviolet nonlinear Optical Material, RbMgCO3F, has been synthesized and characterized. The achiral nonpolar acentric Material is second harmonic generation (SHG) active at both 1064 and 532 nm, with efficiencies of 160 × α-SiO2 and 0.6 × β-BaB2O4, respectively, and exhibits a short UV cutoff, below 190 nm. RbMgCO3F possesses a three-dimensional structure of corner-shared Mg(CO3)2F2 polyhedra. Unlike other acentric carbonate fluorides, in this example, the inclusion of Mg2+ creates pentagonal channels where the Rb+ resides. Our electronic structure calculations reveal that the denticity of the carbonate linkage, monodentate or bidendate, to the divalent cation is a useful parameter for tuning the transparency window and achieving the sizable SHG response.
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characterization of new infrared nonlinear Optical Material with high laser damage threshold li2ga2ges6
Chemistry of Materials, 2008Co-Authors: Steve W Martin, Shiv P Halasyamani, Jaewook Baek, Nachiappan Arumugam, H SteinfinkAbstract:A new thio-germanium sulfide Li2Ga2GeS6 has been synthesized for the first time and its structure was found to be isomorphous with AgGaGeS4, which is well-known as a promising infrared NLO Material. The host structure is built of GaS4 tetrahedra linked by corners to GeS4 tetrahedra to create a 3D framework forming tunnels along the c-axis, in which the Li+ ions are located. The second harmonic generation (SHG) efficiency determined on powders of Li2Ga2GaS6 is ∼200 times larger than that of α-SiO2. Unlike AgGaS2 and AgGaGeS4, Li2Ga2GeS6 was observed to be very stable under prolonged Nd:YAG 1.064 μm laser pumping, indicative of a large improvement in laser damage threshold. This new Material could supplant Ag phases in the next generation of high-power infrared NLO applications.
Hongwei Yu - One of the best experts on this subject based on the ideXlab platform.
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design and synthesis of the beryllium free deep ultraviolet nonlinear Optical Material ba3 znb5o10 po4
ChemInform, 2016Co-Authors: Hongwei Yu, James M Rondinelli, Weiguo Zhang, Joshua Young, Shiv P HalasyamaniAbstract:The title compound is synthesized by solid state reaction of a stoichiometric mixture of BaCO3, ZnO, H3BO3, and NH4H2PO4 (Pt crucible, 840 °C, 72 h).
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design and synthesis of the beryllium free deep ultraviolet nonlinear Optical Material ba3 znb5o10 po4
Advanced Materials, 2015Co-Authors: Hongwei Yu, James M Rondinelli, Weiguo Zhang, Joshua Young, Shiv P HalasyamaniAbstract:Access to the elusive deep-ultraviolet by direct second harmonic generation (SHG) enabled by a new beryllium-free zincoborate-phosphate crystal is reported. Ba3(ZnB5O10)PO4, exhibits large SHG responses at 1064 and 532 nm and a short 180 nm absorption edge. Centimeter-size crystals are grown, and quantum mechanical calculations demonstrate the key role played by ZnO4 tetrahedra in the enhanced Optical responses.
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pb7o oh 3 co3 3 bo3 first mixed borate and carbonate nonlinear Optical Material exhibiting large second harmonic generation response
ChemInform, 2015Co-Authors: Maierhaba Abudoureheman, Li Wang, Xianming Zhang, Hongwei Yu, Zhihua YangAbstract:The title UV nonlinear Optical Material is hydrothermally synthesized from Pb(NO3)2, H3BO3, Cs2CO3, and KOH in the molar ratio 1:4:1:10 (autoclave, 180 °C, 12 h, 75% yield).
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pb7o oh 3 co3 3 bo3 first mixed borate and carbonate nonlinear Optical Material exhibiting large second harmonic generation response
Inorganic Chemistry, 2015Co-Authors: Maierhaba Abudoureheman, Li Wang, Xianming Zhang, Hongwei Yu, Zhihua YangAbstract:The first borate carbonate UV nonlinear Optical Material Pb7O(OH)3(CO3)3(BO3) was hydrothermally synthesized, which features a (3,9)-connected IrSi3-like structure constructed by Pb7O(OH)3(BO3) units and carbonates. This compound exhibits a large second-harmonic generation (SHG) response about 4.5 times that of KH2PO4 (KDP), attributed to synergistic interactions between the stereoeffect of the Pb(II) cations and coparallel BO3 and CO3 triangles groups.
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designing a deep ultraviolet nonlinear Optical Material with a large second harmonic generation response
ChemInform, 2013Co-Authors: Hongping Wu, Zhihua Yang, Kenneth R Poeppelmeier, Hongwei Yu, Xin Su, James M RondinelliAbstract:Ba4B11O20F is synthesized by solid state reaction of a stoichiometric mixture of Ba(NO3)2, H3BO3, and BaF2 (780 °C, 2 d).
Zhihua Yang - One of the best experts on this subject based on the ideXlab platform.
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csb4o6f a congruent melting deep ultraviolet nonlinear Optical Material by combining superior functional units
Angewandte Chemie, 2017Co-Authors: Xuefei Wang, Ying Wang, Fangfang Zhang, Bingbing Zhang, Zhihua YangAbstract:The discovery of new nonlinear Optical (NLO) Materials for coherent light generation in the deep-ultraviolet (DUV, wavelength below 200 nm) region is essential for the development of laser technologies. Herein, we report a new Material CsB4O6F (CBF), which combines the superior structural properties of two well-known NLO Materials, beta-BaB2O4 (BBO) and KBe2BO3F2 (KBBF). CBF exhibits excellent DUV Optical properties including a short cutoff edge (155 nm), a large SHG response (approximate to 1.9 X KDP), and a suitable birefringence that enables frequency doubling down to 171.6 nm. Remarkably, CBF melts congruently and shows an improved growth habit. In addition, our rational design strategy will contribute to the discovery of DUV NLO Materials.
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finding the next deep ultraviolet nonlinear Optical Material nh4b4o6f
Journal of the American Chemical Society, 2017Co-Authors: Ying Wang, Fangfang Zhang, Bingbing Zhang, Zhihua Yang, Kenneth R PoeppelmeierAbstract:Nonlinear Optical Materials are essential for the development of solid-state lasers. KBe2BO3F2 (KBBF) is a unique nonlinear Optical Material for generation of deep-ultraviolet coherent light; however, its industrial application is limited. Here, we report a new Material NH4B4O6F, which exhibits a wide deep-ultraviolet transparent range and suitable birefringence that enables frequency doubling below 200 nm. NH4B4O6F possesses large nonlinear coefficients about 2.5 times that of KBBF. In addition, it is easy to grow bulk crystals and does not contain toxic elements.
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pb7o oh 3 co3 3 bo3 first mixed borate and carbonate nonlinear Optical Material exhibiting large second harmonic generation response
ChemInform, 2015Co-Authors: Maierhaba Abudoureheman, Li Wang, Xianming Zhang, Hongwei Yu, Zhihua YangAbstract:The title UV nonlinear Optical Material is hydrothermally synthesized from Pb(NO3)2, H3BO3, Cs2CO3, and KOH in the molar ratio 1:4:1:10 (autoclave, 180 °C, 12 h, 75% yield).
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pb7o oh 3 co3 3 bo3 first mixed borate and carbonate nonlinear Optical Material exhibiting large second harmonic generation response
Inorganic Chemistry, 2015Co-Authors: Maierhaba Abudoureheman, Li Wang, Xianming Zhang, Hongwei Yu, Zhihua YangAbstract:The first borate carbonate UV nonlinear Optical Material Pb7O(OH)3(CO3)3(BO3) was hydrothermally synthesized, which features a (3,9)-connected IrSi3-like structure constructed by Pb7O(OH)3(BO3) units and carbonates. This compound exhibits a large second-harmonic generation (SHG) response about 4.5 times that of KH2PO4 (KDP), attributed to synergistic interactions between the stereoeffect of the Pb(II) cations and coparallel BO3 and CO3 triangles groups.
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designing a deep ultraviolet nonlinear Optical Material with a large second harmonic generation response
ChemInform, 2013Co-Authors: Hongping Wu, Zhihua Yang, Kenneth R Poeppelmeier, Hongwei Yu, Xin Su, James M RondinelliAbstract:Ba4B11O20F is synthesized by solid state reaction of a stoichiometric mixture of Ba(NO3)2, H3BO3, and BaF2 (780 °C, 2 d).
James M Rondinelli - One of the best experts on this subject based on the ideXlab platform.
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design and synthesis of the beryllium free deep ultraviolet nonlinear Optical Material ba3 znb5o10 po4
ChemInform, 2016Co-Authors: Hongwei Yu, James M Rondinelli, Weiguo Zhang, Joshua Young, Shiv P HalasyamaniAbstract:The title compound is synthesized by solid state reaction of a stoichiometric mixture of BaCO3, ZnO, H3BO3, and NH4H2PO4 (Pt crucible, 840 °C, 72 h).
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design and synthesis of the beryllium free deep ultraviolet nonlinear Optical Material ba3 znb5o10 po4
Advanced Materials, 2015Co-Authors: Hongwei Yu, James M Rondinelli, Weiguo Zhang, Joshua Young, Shiv P HalasyamaniAbstract:Access to the elusive deep-ultraviolet by direct second harmonic generation (SHG) enabled by a new beryllium-free zincoborate-phosphate crystal is reported. Ba3(ZnB5O10)PO4, exhibits large SHG responses at 1064 and 532 nm and a short 180 nm absorption edge. Centimeter-size crystals are grown, and quantum mechanical calculations demonstrate the key role played by ZnO4 tetrahedra in the enhanced Optical responses.
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rbmgco3f a new beryllium free deep ultraviolet nonlinear Optical Material
Journal of the American Chemical Society, 2015Co-Authors: Thao T Tran, Jiangang He, James M Rondinelli, Shiv P HalasyamaniAbstract:A new deep-ultraviolet nonlinear Optical Material, RbMgCO3F, has been synthesized and characterized. The achiral nonpolar acentric Material is second harmonic generation (SHG) active at both 1064 and 532 nm, with efficiencies of 160 × α-SiO2 and 0.6 × β-BaB2O4, respectively, and exhibits a short UV cutoff, below 190 nm. RbMgCO3F possesses a three-dimensional structure of corner-shared Mg(CO3)2F2 polyhedra. Unlike other acentric carbonate fluorides, in this example, the inclusion of Mg2+ creates pentagonal channels where the Rb+ resides. Our electronic structure calculations reveal that the denticity of the carbonate linkage, monodentate or bidendate, to the divalent cation is a useful parameter for tuning the transparency window and achieving the sizable SHG response.
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designing a deep ultraviolet nonlinear Optical Material with a large second harmonic generation response
ChemInform, 2013Co-Authors: Hongping Wu, Zhihua Yang, Kenneth R Poeppelmeier, Hongwei Yu, Xin Su, James M RondinelliAbstract:Ba4B11O20F is synthesized by solid state reaction of a stoichiometric mixture of Ba(NO3)2, H3BO3, and BaF2 (780 °C, 2 d).
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designing a deep ultraviolet nonlinear Optical Material with a large second harmonic generation response
Journal of the American Chemical Society, 2013Co-Authors: Hongping Wu, Zhihua Yang, Kenneth R Poeppelmeier, Hongwei Yu, Xin Su, James M RondinelliAbstract:The generation of intense coherent deep-UV light from nonlinear Optical Materials is crucial to applications ranging from semiconductor photolithography and laser micromachining to photochemical synthesis. However, few Materials with large second harmonic generation (SHG) and a short UV-cutoff edge are effective down to 200 nm. A notable exception is KBe2BO3F2, which is obtained from a solid-state reaction of highly toxic beryllium oxide powders. We designed and synthesized a benign polar Material, Ba4B11O20F, that satisfies these requirements and exhibits the largest SHG response in known borates containing neither lone-pair-active anions nor second-order Jahn-Teller-active transition metals. We developed a microscopic model to explain the enhancement, which is unexpected on the basis of conventional anionic group theory arguments. Crystal engineering of atomic displacements along the polar axis, which are difficult to attribute to or identify within unique anionic moieties, and greater cation polarizabilities are critical to the design of next-generation SHG Materials.
Maochun Hong - One of the best experts on this subject based on the ideXlab platform.
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cooperation of three chromophores generates the water resistant nitrate nonlinear Optical Material bi3teo6oh no3 2
Angewandte Chemie, 2017Co-Authors: Sangen Zhao, Yaoguo Shen, Yi Yang, Bingqing Zhao, Lina Li, Chengmin Ji, Zhenyue Wu, Daqiang Yuan, Maochun HongAbstract:Nitrates have long been ignored for practical uses as nonlinear Optical (NLO) Materials because they are usually very easy to dissolve in water; despite this, the π-conjugated [NO3]− is among the most desirable NLO-active structural units. The cooperation of three structural chromophores, namely, Bi3O6OH short chains with 6s2 lone pair electrons, distorted TeO6 octahedra with d10 electrons, and π-conjugated [NO3]− triangles, generates a new nitrate NLO Material, Bi3TeO6OH(NO3)2, which exhibits an enhanced phase-matchable NLO response of three times that of KH2PO4 (3×KH2PO4), exceeding those of most nitrate NLO Materials. Remarkably, the new Material did not show obvious weight loss and degeneration of NLO response after being dipped in de-ionized water for 24 h, indicating that it is highly resistant to water. Theoretical calculations reveal that foreign water molecules cannot stably stay in the crystal lattice of Bi3TeO6OH(NO3)2. These findings highlight the introduction of diverse chromophores into the nitrate systems as an effective approach for developing practical nitrate NLO Materials that are of high water-resistance and good Optical performance.
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designing a beryllium free deep ultraviolet nonlinear Optical Material without a structural instability problem
ChemInform, 2016Co-Authors: Sangen Zhao, Lei Kang, Yaoguo Shen, Xiaodong Wang, Muhammad Adnan Asghar, Yingying Xu, Siyuan Zeng, Maochun HongAbstract:K3Ba3Li2Al4B6 O20F is prepared by solid state reaction of a stoichiometric mixture of K2CO3, BaCO3, Li2CO3, Al2O3, LiF, and H3BO3 (1.
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designing a beryllium free deep ultraviolet nonlinear Optical Material without a structural instability problem
Journal of the American Chemical Society, 2016Co-Authors: Sangen Zhao, Lei Kang, Yaoguo Shen, Xiaodong Wang, Muhammad Adnan Asghar, Yingying Xu, Siyuan Zeng, Maochun HongAbstract:A beryllium-free deep-ultraviolet (deep-UV) nonlinear Optical (NLO) Material K3Ba3Li2Al4B6O20F is developed mainly by the element substitution of Be for Al and Li from Sr2Be2B2O7 that was considered as one of the most promising deep-UV NLO Materials. K3Ba3Li2Al4B6O20F preserves the structural merits of Sr2Be2B2O7 and thus exhibits no layering growth tendency and possesses the Optical properties required for deep-UV NLO applications, including deep-UV transparency, phase-matchability, and sufficiently large second-harmonic generation (1.5 × KH2PO4). Furthermore, it overcomes the structural instability problem of Sr2Be2B2O7, which is confirmed by the obtainment of large single crystals and phonon dispersion calculations. These attributes make it very attractive for next-generation deep-UV NLO Materials. The substitution of Be for Al and Li in beryllium borates provides a new opportunity to design beryllium-free deep-UV NLO Materials with good performance.
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a new uv nonlinear Optical Material cszn2b3o7 zno4 tetrahedra double the efficiency of second harmonic generation
Inorganic Chemistry, 2014Co-Authors: Sangen Zhao, Jia Zhang, Shuquan Zhang, Yicheng Wu, Maochun HongAbstract:A new noncentrosymmetric borate CsZn2B3O7 was synthesized by the solid-state reaction techniques. The crystals were obtained by flux method and are of block shape without layering tendency. Single-crystal X-ray diffraction analysis reveals that the crystal structure is composed of [Zn2BO5]∞ two-dimensional layers that are bridged by [B3O6]3– groups to form a three-dimensional framework with one-dimensional channels occupied by Cs+ cations along the a and c axes. Thermal analysis indicates that CsZn2B3O7 melts incongruently. UV–visible–near-IR diffuse reflectance spectrum gives a short absorption edge at 218 nm. CsZn2B3O7 is phase-matchable, with a powder second-harmonic generation (SHG) efficiency of 1.5 × KDP (KDP, potassium dihydrogen phosphate) at 1064 nm, based on the Kurtz–Perry method. These results show that CsZn2B3O7 may have prospects as a UV nonlinear Optical Material. Interestingly, the SHG efficiency of CsZn2B3O7 is about twice that of γ-KBe2B3O7, a structurally analogous alkaline and alkaline...
