The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Shilie Pan - One of the best experts on this subject based on the ideXlab platform.
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targeting the next generation of deep ultraviolet nonlinear Optical Materials expanding from borates to borate fluorides to fluorooxoborates
Accounts of Chemical Research, 2019Co-Authors: Miriding Mutailipu, Min Zhang, Zhihua Yang, Shilie PanAbstract:ConspectusCoherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision microprocessing. Actually, it is hard to immediately obtain certain wavelengths, deep-ultraviolet coherent light in particular, from commercial laser sources. However, the direct second harmonic generation process governed in part by nonlinear Optical crystals is a feasible and effective approach to generate deep-ultraviolet coherent light, which motivates chemists and Materials scientists to find potential deep-ultraviolet nonlinear Optical Materials that can practically meet the scientific requirements. The research progress required to go from a new single-crystal structure to final device applications involves many pivotal steps and is highly time-consuming and challenging, and therefore, it is necessary to commence systematic studies aimed at sho...
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Targeting the Next Generation of Deep-Ultraviolet Nonlinear Optical Materials: Expanding from Borates to Borate Fluorides to Fluorooxoborates
2019Co-Authors: Miriding Mutailipu, Min Zhang, Zhihua Yang, Shilie PanAbstract:ConspectusCoherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision microprocessing. Actually, it is hard to immediately obtain certain wavelengths, deep-ultraviolet coherent light in particular, from commercial laser sources. However, the direct second harmonic generation process governed in part by nonlinear Optical crystals is a feasible and effective approach to generate deep-ultraviolet coherent light, which motivates chemists and Materials scientists to find potential deep-ultraviolet nonlinear Optical Materials that can practically meet the scientific requirements. The research progress required to go from a new single-crystal structure to final device applications involves many pivotal steps and is highly time-consuming and challenging, and therefore, it is necessary to commence systematic studies aimed at shortening the research cycle and accelerating the rational design of deep-ultraviolet nonlinear Optical Materials.In this Account, we choose borates as raw Materials because they have ever-greater possibilities to form desired noncentrosymmetric structures, wide Optical transparency windows, rich structural chemistry, and also large polarizabilities to guarantee the coexistence of large second-order nonlinear Optical coefficients and suitable birefringence. Besides, the effects of fluorine atoms on the structural chemistry and Optical properties of borates have been summarized and analyzed. On the basis of these favorable influences, three specific rational design strategies, including experimental and theoretical methods, have been proposed in order to shorten the investigational cycle of discovering the new expected compounds with high physicochemical performances required for practical applications. In this way, the progress of searching for candidates for the next generation of deep-ultraviolet nonlinear Optical Materials was accelerated from borates to borate fluorides to fluorooxoborates with three effective strategies: (1) expansion of the frontier from borates to borate fluorides with the introduction of fluorine to achieve enhanced Optical performance; (2) computer-assisted design of new deep-ultraviolet nonlinear Optical Materials with a newly introduced systematic global structure optimization method; and (3) expansion of the frontier from borate fluorides to fluorooxoborates by proposed functionalized oxyfluoride [BOxF4–x](x+1)– (x = 1, 2, 3) chromophores to balance multiple criteria. The preliminary development of fluorooxoborates exhibiting high performance as a new fertile field to search for deep-ultraviolet nonlinear Optical Materials is highly encouraging and inspiring and can guide chemists and Materials scientists with new directions and thoughts aimed at finding the next generation of practical deep-ultraviolet nonlinear Optical Materials
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module guided design scheme for deep ultraviolet nonlinear Optical Materials
Journal of the American Chemical Society, 2018Co-Authors: Bing Hua Lei, Zhihua Yang, Kenneth R Poeppelmeier, Chao Cao, Shilie PanAbstract:Design of functional Materials with targeted properties is a challenge because of the diversity of their potential structures. The functional performances of Materials are mainly determined by the chemistry and electronic structure of modules consisting of local atomic groups with special arrangements. Tetrahedral modules are excellent modules for designing deep-ultraviolet/ultraviolet (UV) nonlinear Optical (NLO) Materials, but they are rarely favored due to their unpredictable Optical anisotropy and second harmonic generation (SHG) response. In this work, we have developed a module-guided ab initio approach for evaluating the Optical anisotropy of tetrahedral modules. The application of this method indicates that the tetrahedral modules with a specific arrangement will enhance the Optical anisotropy of Materials. With the functional modules consisting of tetrahedral modules and rare-earth cations, new high-performance rare-earth phosphates were assembled. These Materials are promising deep-UV NLO Materials because of their appropriate birefringences, large band gaps, moderate SHG responses, and easy to obtain large size crystals.
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Expanding Frontiers of Ultraviolet Nonlinear Optical Materials with Fluorophosphates
2018Co-Authors: Bingbing Zhang, Zhihua Yang, Guopeng Han, Ying Wang, Xinglong Chen, Shilie PanAbstract:If a bucket is to hold more water, its shortest plank must be made longer. This guideline also applies to the exploration of ultraviolet (UV) and deep-UV (DUV) nonlinear Optical (NLO) Materials that are limited by multiple criteria. Phosphates are one kind of promising candidate for new NLO Materials. Unfortunately, the small birefringence, as the shortest plank, severely restricts the phase-matching of second harmonic generation (SHG) in the UV/DUV region. In this work, fluorophosphates are rationally proposed as substitutes for phosphates to break down the limitation of birefringence and simultaneously enhance SHG response and retain wide UV transmittance. The (PO3F)2– and (PO2F2)− groups are confirmed as superior material genomes to achieve the discussed combination properties. Accordingly, (NH4)2PO3F was screened out by density functional theory calculation, and single crystals with centimeter size have been grown. It possesses a powder SHG efficiency of 1 × KH2PO4 (KDP) and is phase-matchable with output of SHG wavelength at 266 nm. To the best of our knowledge, it is the first time that fluorophosphates are identified and developed as new and ideal candidates to new UV/DUV NLO Materials by combining theories and experiments
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fluorooxoborates beryllium free deep ultraviolet nonlinear Optical Materials without layered growth
Angewandte Chemie, 2017Co-Authors: Bingbing Zhang, Zhihua Yang, Guoqiang Shi, Fangfang Zhang, Shilie PanAbstract:Deep-ultraviolet nonlinear Optical (DUV NLO) crystals are the key Materials to extend the output range of solid-state lasers to below 200 nm. The only practical material KBe2BO3F2 suffers high toxicity through beryllium and strong layered growth. Herein, we propose a beryllium-free material design and synthesis strategy for DUV NLO Materials. Introducing the (BO3F)4−, (BO2F2)3−, and (BOF3)2− groups in borates could break through the fixed 3D B–O network that would produce a larger birefringence without layering and simultaneously keep a short cutoff edge down to DUV. The theoretical and experimental studies on a series of fluorooxoborates confirm this strategy. Li2B6O9F2 is identified as a DUV NLO material with a large second harmonic generation efficiency (0.9×KDP) and a large predicted birefringence (0.07) without layering. This study provides a feasible way to break down the DUV wall for NLO Materials.
Zhihua Yang - One of the best experts on this subject based on the ideXlab platform.
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targeting the next generation of deep ultraviolet nonlinear Optical Materials expanding from borates to borate fluorides to fluorooxoborates
Accounts of Chemical Research, 2019Co-Authors: Miriding Mutailipu, Min Zhang, Zhihua Yang, Shilie PanAbstract:ConspectusCoherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision microprocessing. Actually, it is hard to immediately obtain certain wavelengths, deep-ultraviolet coherent light in particular, from commercial laser sources. However, the direct second harmonic generation process governed in part by nonlinear Optical crystals is a feasible and effective approach to generate deep-ultraviolet coherent light, which motivates chemists and Materials scientists to find potential deep-ultraviolet nonlinear Optical Materials that can practically meet the scientific requirements. The research progress required to go from a new single-crystal structure to final device applications involves many pivotal steps and is highly time-consuming and challenging, and therefore, it is necessary to commence systematic studies aimed at sho...
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Targeting the Next Generation of Deep-Ultraviolet Nonlinear Optical Materials: Expanding from Borates to Borate Fluorides to Fluorooxoborates
2019Co-Authors: Miriding Mutailipu, Min Zhang, Zhihua Yang, Shilie PanAbstract:ConspectusCoherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision microprocessing. Actually, it is hard to immediately obtain certain wavelengths, deep-ultraviolet coherent light in particular, from commercial laser sources. However, the direct second harmonic generation process governed in part by nonlinear Optical crystals is a feasible and effective approach to generate deep-ultraviolet coherent light, which motivates chemists and Materials scientists to find potential deep-ultraviolet nonlinear Optical Materials that can practically meet the scientific requirements. The research progress required to go from a new single-crystal structure to final device applications involves many pivotal steps and is highly time-consuming and challenging, and therefore, it is necessary to commence systematic studies aimed at shortening the research cycle and accelerating the rational design of deep-ultraviolet nonlinear Optical Materials.In this Account, we choose borates as raw Materials because they have ever-greater possibilities to form desired noncentrosymmetric structures, wide Optical transparency windows, rich structural chemistry, and also large polarizabilities to guarantee the coexistence of large second-order nonlinear Optical coefficients and suitable birefringence. Besides, the effects of fluorine atoms on the structural chemistry and Optical properties of borates have been summarized and analyzed. On the basis of these favorable influences, three specific rational design strategies, including experimental and theoretical methods, have been proposed in order to shorten the investigational cycle of discovering the new expected compounds with high physicochemical performances required for practical applications. In this way, the progress of searching for candidates for the next generation of deep-ultraviolet nonlinear Optical Materials was accelerated from borates to borate fluorides to fluorooxoborates with three effective strategies: (1) expansion of the frontier from borates to borate fluorides with the introduction of fluorine to achieve enhanced Optical performance; (2) computer-assisted design of new deep-ultraviolet nonlinear Optical Materials with a newly introduced systematic global structure optimization method; and (3) expansion of the frontier from borate fluorides to fluorooxoborates by proposed functionalized oxyfluoride [BOxF4–x](x+1)– (x = 1, 2, 3) chromophores to balance multiple criteria. The preliminary development of fluorooxoborates exhibiting high performance as a new fertile field to search for deep-ultraviolet nonlinear Optical Materials is highly encouraging and inspiring and can guide chemists and Materials scientists with new directions and thoughts aimed at finding the next generation of practical deep-ultraviolet nonlinear Optical Materials
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module guided design scheme for deep ultraviolet nonlinear Optical Materials
Journal of the American Chemical Society, 2018Co-Authors: Zhihua Yang, Hongwei Yu, Zhi Li, Cong Hu, Kenneth R PoeppelmeierAbstract:Design of functional Materials with targeted properties is a challenge because of the diversity of their potential structures. The functional performances of Materials are mainly determined by the chemistry and electronic structure of modules consisting of local atomic groups with special arrangements. Tetrahedral modules are excellent modules for designing deep-ultraviolet/ultraviolet (UV) nonlinear Optical (NLO) Materials, but they are rarely favored due to their unpredictable Optical anisotropy and second harmonic generation (SHG) response. In this work, we have developed a module-guided ab initio approach for evaluating the Optical anisotropy of tetrahedral modules. The application of this method indicates that the tetrahedral modules with a specific arrangement will enhance the Optical anisotropy of Materials. With the functional modules consisting of tetrahedral modules and rare-earth cations, new high-performance rare-earth phosphates were assembled. These Materials are promising deep-UV NLO materi...
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module guided design scheme for deep ultraviolet nonlinear Optical Materials
Journal of the American Chemical Society, 2018Co-Authors: Bing Hua Lei, Zhihua Yang, Kenneth R Poeppelmeier, Chao Cao, Shilie PanAbstract:Design of functional Materials with targeted properties is a challenge because of the diversity of their potential structures. The functional performances of Materials are mainly determined by the chemistry and electronic structure of modules consisting of local atomic groups with special arrangements. Tetrahedral modules are excellent modules for designing deep-ultraviolet/ultraviolet (UV) nonlinear Optical (NLO) Materials, but they are rarely favored due to their unpredictable Optical anisotropy and second harmonic generation (SHG) response. In this work, we have developed a module-guided ab initio approach for evaluating the Optical anisotropy of tetrahedral modules. The application of this method indicates that the tetrahedral modules with a specific arrangement will enhance the Optical anisotropy of Materials. With the functional modules consisting of tetrahedral modules and rare-earth cations, new high-performance rare-earth phosphates were assembled. These Materials are promising deep-UV NLO Materials because of their appropriate birefringences, large band gaps, moderate SHG responses, and easy to obtain large size crystals.
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Expanding Frontiers of Ultraviolet Nonlinear Optical Materials with Fluorophosphates
2018Co-Authors: Bingbing Zhang, Zhihua Yang, Guopeng Han, Ying Wang, Xinglong Chen, Shilie PanAbstract:If a bucket is to hold more water, its shortest plank must be made longer. This guideline also applies to the exploration of ultraviolet (UV) and deep-UV (DUV) nonlinear Optical (NLO) Materials that are limited by multiple criteria. Phosphates are one kind of promising candidate for new NLO Materials. Unfortunately, the small birefringence, as the shortest plank, severely restricts the phase-matching of second harmonic generation (SHG) in the UV/DUV region. In this work, fluorophosphates are rationally proposed as substitutes for phosphates to break down the limitation of birefringence and simultaneously enhance SHG response and retain wide UV transmittance. The (PO3F)2– and (PO2F2)− groups are confirmed as superior material genomes to achieve the discussed combination properties. Accordingly, (NH4)2PO3F was screened out by density functional theory calculation, and single crystals with centimeter size have been grown. It possesses a powder SHG efficiency of 1 × KH2PO4 (KDP) and is phase-matchable with output of SHG wavelength at 266 nm. To the best of our knowledge, it is the first time that fluorophosphates are identified and developed as new and ideal candidates to new UV/DUV NLO Materials by combining theories and experiments
Kenneth R Poeppelmeier - One of the best experts on this subject based on the ideXlab platform.
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module guided design scheme for deep ultraviolet nonlinear Optical Materials
Journal of the American Chemical Society, 2018Co-Authors: Bing Hua Lei, Zhihua Yang, Kenneth R Poeppelmeier, Chao Cao, Shilie PanAbstract:Design of functional Materials with targeted properties is a challenge because of the diversity of their potential structures. The functional performances of Materials are mainly determined by the chemistry and electronic structure of modules consisting of local atomic groups with special arrangements. Tetrahedral modules are excellent modules for designing deep-ultraviolet/ultraviolet (UV) nonlinear Optical (NLO) Materials, but they are rarely favored due to their unpredictable Optical anisotropy and second harmonic generation (SHG) response. In this work, we have developed a module-guided ab initio approach for evaluating the Optical anisotropy of tetrahedral modules. The application of this method indicates that the tetrahedral modules with a specific arrangement will enhance the Optical anisotropy of Materials. With the functional modules consisting of tetrahedral modules and rare-earth cations, new high-performance rare-earth phosphates were assembled. These Materials are promising deep-UV NLO Materials because of their appropriate birefringences, large band gaps, moderate SHG responses, and easy to obtain large size crystals.
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module guided design scheme for deep ultraviolet nonlinear Optical Materials
Journal of the American Chemical Society, 2018Co-Authors: Zhihua Yang, Hongwei Yu, Zhi Li, Cong Hu, Kenneth R PoeppelmeierAbstract:Design of functional Materials with targeted properties is a challenge because of the diversity of their potential structures. The functional performances of Materials are mainly determined by the chemistry and electronic structure of modules consisting of local atomic groups with special arrangements. Tetrahedral modules are excellent modules for designing deep-ultraviolet/ultraviolet (UV) nonlinear Optical (NLO) Materials, but they are rarely favored due to their unpredictable Optical anisotropy and second harmonic generation (SHG) response. In this work, we have developed a module-guided ab initio approach for evaluating the Optical anisotropy of tetrahedral modules. The application of this method indicates that the tetrahedral modules with a specific arrangement will enhance the Optical anisotropy of Materials. With the functional modules consisting of tetrahedral modules and rare-earth cations, new high-performance rare-earth phosphates were assembled. These Materials are promising deep-UV NLO materi...
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deep ultraviolet nonlinear Optical Materials
ChemInform, 2016Co-Authors: Thao T Tran, James M Rondinelli, Kenneth R Poeppelmeier, Shiv P HalasyamaniAbstract:Deep ultraviolet (absorption edge 6.2 eV) nonlinear Optical (NLO) Materials are of current interest owing to their technological applications and Materials design challenges. Technologically, the Materials are used in laser systems, atto-second pulse generation, semiconductor manufacturing, and photolithography. Designing and synthesizing a deep UV NLO material requires crystallographic non-centrosymmetry, a wide UV transparency range, a large second-harmonic generating coefficient (dij > 0.39 pm/V), moderate birefringence (Δn ∼ 0.07), chemical stability and resistance to laser damage, and ease in the growth of large high-quality single crystals. This review examines the known deep UV NLO Materials with respect to their crystal structure, band gap, SHG efficiency, laser damage threshold, and birefringence. Finally, future directions with respect to new deep UV NLO Materials are discussed.
Alexander A Kaminskii - One of the best experts on this subject based on the ideXlab platform.
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neodymium doped yttrium aluminum garnet y3al5o12 nanocrystalline ceramics a new generation of solid state laser and Optical Materials
Journal of Alloys and Compounds, 2002Co-Authors: Jianren Lu, Kenichi Ueda, Hideki Yagi, Takagimi Yanagitani, Yasuhiro Akiyama, Alexander A KaminskiiAbstract:We have developed and adequately characterized a new generation of solid-state laser and Optical Materials on the basis of highly transparent nanocrystalline yttrium aluminium garnet Y3Al5O12 (YAG) ceramics. We consider this new type of inorganic laser media as an illustration of selected results of the latest investigations of laser and spectroscopic parameters of nanocrystalline Nd3+:YAG ceramics. In particular, absorption, luminescence, stimulated Raman scattering properties, as well as highly efficient CW laser oscillation at wavelength of 1064 nm under laser-diode pumping were investigated. The results show that this new laser material is a very good alternative to Nd3+:YAG single crystals. In particular, in preliminary comparison laser experiments with both Nd3+:YAG ceramic and single-crystal rods, output powers of 88 W and 99 W were obtained corresponding to Optical-to-Optical efficiencies of 30% and 34% for ceramic and single crystal rods, respectively. A CW 1.46 kW high power Nd:YAG ceramic laser was developed. Quite recently, laser oscillation at ≈1.32 μm was also demonstrated.
Miriding Mutailipu - One of the best experts on this subject based on the ideXlab platform.
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targeting the next generation of deep ultraviolet nonlinear Optical Materials expanding from borates to borate fluorides to fluorooxoborates
Accounts of Chemical Research, 2019Co-Authors: Miriding Mutailipu, Min Zhang, Zhihua Yang, Shilie PanAbstract:ConspectusCoherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision microprocessing. Actually, it is hard to immediately obtain certain wavelengths, deep-ultraviolet coherent light in particular, from commercial laser sources. However, the direct second harmonic generation process governed in part by nonlinear Optical crystals is a feasible and effective approach to generate deep-ultraviolet coherent light, which motivates chemists and Materials scientists to find potential deep-ultraviolet nonlinear Optical Materials that can practically meet the scientific requirements. The research progress required to go from a new single-crystal structure to final device applications involves many pivotal steps and is highly time-consuming and challenging, and therefore, it is necessary to commence systematic studies aimed at sho...
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Targeting the Next Generation of Deep-Ultraviolet Nonlinear Optical Materials: Expanding from Borates to Borate Fluorides to Fluorooxoborates
2019Co-Authors: Miriding Mutailipu, Min Zhang, Zhihua Yang, Shilie PanAbstract:ConspectusCoherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision microprocessing. Actually, it is hard to immediately obtain certain wavelengths, deep-ultraviolet coherent light in particular, from commercial laser sources. However, the direct second harmonic generation process governed in part by nonlinear Optical crystals is a feasible and effective approach to generate deep-ultraviolet coherent light, which motivates chemists and Materials scientists to find potential deep-ultraviolet nonlinear Optical Materials that can practically meet the scientific requirements. The research progress required to go from a new single-crystal structure to final device applications involves many pivotal steps and is highly time-consuming and challenging, and therefore, it is necessary to commence systematic studies aimed at shortening the research cycle and accelerating the rational design of deep-ultraviolet nonlinear Optical Materials.In this Account, we choose borates as raw Materials because they have ever-greater possibilities to form desired noncentrosymmetric structures, wide Optical transparency windows, rich structural chemistry, and also large polarizabilities to guarantee the coexistence of large second-order nonlinear Optical coefficients and suitable birefringence. Besides, the effects of fluorine atoms on the structural chemistry and Optical properties of borates have been summarized and analyzed. On the basis of these favorable influences, three specific rational design strategies, including experimental and theoretical methods, have been proposed in order to shorten the investigational cycle of discovering the new expected compounds with high physicochemical performances required for practical applications. In this way, the progress of searching for candidates for the next generation of deep-ultraviolet nonlinear Optical Materials was accelerated from borates to borate fluorides to fluorooxoborates with three effective strategies: (1) expansion of the frontier from borates to borate fluorides with the introduction of fluorine to achieve enhanced Optical performance; (2) computer-assisted design of new deep-ultraviolet nonlinear Optical Materials with a newly introduced systematic global structure optimization method; and (3) expansion of the frontier from borate fluorides to fluorooxoborates by proposed functionalized oxyfluoride [BOxF4–x](x+1)– (x = 1, 2, 3) chromophores to balance multiple criteria. The preliminary development of fluorooxoborates exhibiting high performance as a new fertile field to search for deep-ultraviolet nonlinear Optical Materials is highly encouraging and inspiring and can guide chemists and Materials scientists with new directions and thoughts aimed at finding the next generation of practical deep-ultraviolet nonlinear Optical Materials
