ADVANCED MATERIALS
·
2021
·Vol. 33
·期 17
·2006482
·
IF 30.849
Xu Feng,Yipeng Lun,Xiaofang Jiang,Jianrong Qiu,Huakang Yu,Shifeng Zhou
Nanocrystal-in-glass (NIG) is an exciting class of composites, because it can not only combine the advantages of crystal and glass materials but also potentially generate new physical phenomenon in a cooperative manner. Herein, the nonlinear light–matter interaction processes in a broad range of NIG composites homogeneously embedded with LiNbO 3 are investigated. It is shown that, by rational control of the organization manner of crystal and glass phases, second-harmonic generation (SHG) can be precisely tuned. Importantly, an unusual SHG phenomenon, transverse SHG (TSHG), can be realized in the special region of the microstructure map combined with the features of high loading, nanoscale size, and homogenous distribution of nanocrystals. Furthermore, NIG composites exhibit broadband optical response, allowing TSHG in a wide waveband region to be achieved. Based on the above effects, the applications of the constructed NIG composite for precise measurement of the group velocity and duration of ultrashort optical pulses with femtosecond time scales are demonstrated. Indeed, the findings outline a fundamental principle to design NIG configurations for creating new properties, providing new directions for expanding the scope of NIG functional materials.
研究领域:
材料科学
·
非线性光学
·
光子学
·
纳米复合材料
✓ 已验证
DOI
高影响因子
CRYSTENGCOMM
·
2023
·Vol. 25
·期 8
·1313-1318
·
IF 3.1
Ying Yang,Jianjuan Zhao,Xinyuan Zhang,Zhanggui Hu,Yicheng Wu
A new 3-(4-methoxy)phenyl-5-isoxazolone-based crystal MPMOI (C18H15NO4) was designed and synthesized by the substitution of –OCH3 groups on two sides of the molecular framework. Striped yellow MPMOI crystals were successfully grown by slow evaporation from chloroform solution. Due to the introduction of the –OCH3 group, MPMOI crystallizes in the noncentrosymmetric space group of P212121 and exhibits a second harmonic generation (SHG) response about 3.7 times larger than that of KDP under a 1064 nm fundamental laser. Thermal analysis, UV-visible absorption, infrared spectroscopy, and Raman spectroscopy were also performed to characterize the physical and chemical properties of MPMOI. This work not only presents a new NLO crystal, but also provides a feasible design strategy for group substitution.
研究领域:
材料科学
·
晶体学
·
光学
·
分子设计
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2020
·
IF 4.825
Yun-Xiang Ma,Ya-Ping Gong,Chun-Li Hu,Fang Kong,Jiang-Gao Mao
The search of novel second-harmonic generation crystals in gallium selenite systems results in three new compounds of MGa2(SeO3)4 (M = Sr, Pb) and BiGa(SeO3)3. The isostructural MGa2(SeO3)4 (M = Sr, Pb) are centrosymmetric (P1̅, no. 2). The structures represent a complicated three-dimensional skeleton containing two different types of Ga4Se4 8-member polyhedral ring tunnels with the counter cations located at the broad ones. When the divalent counter cations were substituted by a trivalent lone pair cation of Bi(III), a novel noncentrosymmetric compound of BiGa(SeO3)3 was achieved. BiGa(SeO3)3 displays a 3D gallium selenite framework with 1D bismuth oxide chains filling in the 12-member polyhedral ring tunnels. Frequency doubling measurements showed that BiGa(SeO3)3 presented an apparent SHG signal comparable to the commercial KDP and can realize phase matching. The lone pair anionic groups of SeO32– made the major contribution according to the SHG density analyses. BiGa(SeO3)3 exhibits a wide transparent range and large optical bandgap (3.90 eV). The laser-induced damage threshold of BiGa(SeO3)3 was estimated to be 98.68 MW/cm2, about 44 × AGS.
研究领域:
材料科学
·
光学
·
晶体学
✓ 已验证
DOI
高影响因子
OPTIK
·
2021
·
IF 2.443
Siyuan Hu,Tongpeng Zhao,Kai Xu,Shaohua Ji,Lifeng Cao,Bing Teng
1-(4-methoxyphenyl)-3-(3,4-dimethoxyphenyl)-2-propen-1-one(DMMC), a chalcone derivative was synthesized by Claisen-Schmidt condensation reaction method. The growth of DMMC in methanol was used the slow evaporation technique. Single crystal X-ray diffraction revealed that the space group of DMMC is P2 1 . The intermolecular interaction of crystal was analyzed by Hirshfeld surface. The second harmonic generation efficiency of DMMC was measured by Kurtz-Perry powder method. When the particle size was between 250 and 300 μm, the SHG efficiency of DMMC was the largest, which was about 60 times that of the KDP with the same particle size. All functional groups of the crystal were identified by FT-IR and 1 H NMR spectral. This crystal had a wide transmission range in the region of 350−2000 nm with the cut off wavelength is 400 nm. The thermal properties of the sample were tested, and the melting point was at 95.59 °C. The dielectric constant of the compounds was found to be 17 below 45 °C.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 13
·5183-5189
·
IF 8.067
Yang Wang,Ruiqi Wang,Xiangli Che,Fei Liang,Min Luo,Yufeng Tang,Yunzhen Cao,Fuqiang Huang
A new infrared nonlinear optical quaternary sulfide, CsCd4In5S12, was successfully synthesized via a high-temperature reaction using the CsI flux. This new compound adopts the KCd4Ga5S12-type structure crystallizing in the non-centrosymmetric (NCS) space group R3 (No. 146). It features a 3D diamond-like network constructed by vertex-sharing distorted [CdS4]6− and [InS4]5− tetrahedra which are aligned along the c axis with Cs+ cations dispersing in the cavities. It possesses a direct optical band gap of 2.47 eV with a wide transparency range (0.53–25 μm) and high thermal stability up to 1061 K. Moreover, CsCd4In5S12 achieves a good balance between a high laser-induced damage threshold (LIDT, 9.3 × AgGaS2 in the size range of 150–200 μm) and strong powder second-harmonic generation (SHG, 1.1 × AgGaS2) with phase matching (PM) behavior. Theoretical calculations revealed that the band edges are mainly composed of In–S bond orbitals, which make the dominant contribution to the NLO response.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2019
·
IF 10.159
Yahui Li,Guopeng Han,Hongwei Yu,Hao Li,Zhihua Yang,Shilie Pan
Two polar molybdenum(VI) iodates(V), NH4[MoO3(IO3)] (1) and KRb[(MoO3)2(IO3)2] (2), have been prepared by a hydrothermal method. They crystallize in noncentrosymmetric (NCS) space groups Pna21 and Cc, respectively. Structurally, it is interesting that compound 2 has an exclusive one-dimensional [IO3]− chain based on corner-sharing [IO4]3– units in all iodates(V). As for the properties, both compounds exhibit large second-harmonic generation responses of 4.7 × KH2PO4 (KDP) for compound 1 and 8.5 × KDP for compound 2 with phase-matching behavior. These results are in good agreement with the results of the theoretical calculations. In addition, both compounds also possess large birefringences (Δn) of 0.083 at 1064 nm and 0.146 at 1064 nm, respectively. These results indicate that the title compounds will have potential applications as nonlinear optical materials.
研究领域:
材料科学
·
晶体学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Chuan Tang,Mingjun Xia,Rukang Li
A noncentrosymmetric salt-inclusion germanate, Rb10Li3Sc4Ge12O36F, was grown through spontaneous crystallization from a LiF–RbF flux. It crystallizes in the polar space group P31c with cell parameters of a = 10.7587(3) Å, c = 21.6691(10) Å, and Z = 2. Its structure features a complex 3D framework composed of helical [Ge4O12] chains from condensed [GeO4] tetrahedra running along the c axis, which are interconnected by the [ScO6] octahedra. Voids of the 3D net are filled with Rb+ ions, Li+ ions, and isolated trigonal-bipyramidal [Rb3Li2F] superalkali clusters. The title compound has a large band gap of 5.6 eV, a moderate powder second-harmonic-generation response of 0.9KDP, and an extremely small birefringence of 0.001, as was further unraveled by theoretical calculations.
研究领域:
材料科学
·
晶体学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2015
·
IF 2.999
Jian Liu,Xiulan Duan,Yang Zhang,Ziqing Li,Fapeng Yu,Huaidong Jiang
Rb 2 Ti 1.95 Yb 0.05 (PO 4 ) 3 crystals with langbeinite-type structure were grown by high-temperature solution method. The chemical composition and electronic structure were analyzed using inductive coupled plasma atomic emission spectroscopy (ICP-AES) and X-ray photoelectron spectroscopy (XPS). The deconvolution of Ti 2p 3/2 photoemission line reveals two peaks at 459.3 eV and 458.1 eV, indicating titanium existence in two valence states: Ti 4+ (459.3 eV) and Ti 3+ (458.1 eV). The reduced BE difference ΔBE (O 1s-Ti 2p 3/2 ) shows stronger ionicity of Ti–O bonds in Rb 2 Ti 1.95 Yb 0.05 (PO 4 ) 3 compared with RbTiOPO 4 . Additionally, UV absorption, specific heat, and second harmonic generation (SHG) efficiency were studied. The UV absorption edge of the Rb 2 Ti 1.95 Yb 0.05 (PO 4 ) 3 crystal was observed at 368 nm. The SHG intensity of Rb 2 Ti 1.95 Yb 0.05 (PO 4 ) 3 is 5–6 times greater than that of KDP crystal when the particle size is between 38 and 74 μm.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 84
·53111-53116
·
IF 3.108
Ziqing Li,Yang Chen,Pengfei Zhu,Nianjing Ji,Xiulan Duan,Huaidong Jiang
RTP crystals doped with four different Ta concentrations were grown by high-temperature solution method. Ta dopants changed the growth habit of RTP and the (100) faces were more developed than the other crystal faces. The chemical composition and electronic structure were analyzed using Electron Probe Microanalysis (EPMA) and X-ray photoelectron spectroscopy (XPS). Ta elements could easily incorporate into RTP crystals from the melt due to the large distribution coefficient. As Ta content increased, the Rb 3d, Ti 2p, P 2p, O 1s XPS spectra showed a shift towards higher binding energy. The relative Ta atomic concentration in RTP:Ta crystals was calculated and it was determined that the molar ratio between Ta and Ti was higher than the nominal ratio. The thermal properties and SHG efficiency were also studied. Ta dopants decreased the transition temperature from the orthorhombic RTP phase to the cubic RTP phase and increased the decomposition temperature of the cubic RTP phase. When the Ta concentration increased to 9 mol%, the specific heat of the doped crystal was 1.5 times that of pure RTP crystal at 300 °C and SHG intensity was improved by 59% when compared with pure RTP. The results show that Ta doping is helpful for improvement of SHG efficiency and increasing resistance to laser irradiation.
研究领域:
材料科学
·
晶体学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2021
·Vol. 27
·期 54
·13575-13581
·
IF 5.236
Ding Chong Han,Yu Hui Tan,Yu Kong Li,Jia Hui Wen,Yun Zhi Tang,Wen Juan Wei,Peng Kang Du,Hao Zhang
Graphical A modern material : A novel high-temperature host-guest inclusion ferroelectric, [(C 6 H 5 NF 3 )(18-crown-6)][BF 4 ], has successfully been synthesized; it underwent a reversible structural phase transition around T c =348 K, with a wide band gap of 4.43 eV. The chief contributors to this are the C, H and O atoms of the crystals, the obvious second harmonic generation response and the large value of spontaneous ferroelectric polarization of around 4.06 μC/cm 2 . Molecular ferroelectrics of high-temperature reversible phase transitions are very rare and have attracted increasing attention in recent years. In this paper is described the successful synthesis of a novel high-temperature host-guest inclusion ferroelectric: [(C 6 H 5 NF 3 )(18-crown-6)][BF 4 ] ( 1 ) that shows a pair of reversible peaks at 348 K (heating) and 331 K (cooling) with a heat hysteresis about 17 K by differential scanning calorimetry measurements, thus indicating that 1 undergoes a reversible structural phase transition. Variable-temperature PXRD and temperature-dependent dielectric measurements further prove the phase-transition behavior of 1 . The second harmonic response demonstrates that 1 belongs to a non-centrosymmetric space group at room temperature and is a good nonlinear optical material. In its semiconducting properties, 1 shows a wide optical band gap of about 4.43 eV that comes chiefly from the C, H and O atoms of the crystals. In particular, the ferroelectric measurements of 1 exhibit a typical polarization-electric hysteresis loop with a large spontaneous polarization ( P s ) of about 4.06 μC / cm 2 . This finding offers an alternative pathway for designing new ferroelectric-dielectric and nonlinear optical materials and related physical properties in organic-inorganic and other hybrid crystals.
研究领域:
材料科学
·
晶体学
·
物理化学
✓ 已验证
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Wenlong Xie,Yihan Yun,Lihan Deng,Guangmao Li,Shilie Pan
The development of high-power solid-state lasers is in urgent need of new infrared nonlinear optical (IR NLO) materials with a wide band gap and a high laser-induced damage threshold. A new infrared nonlinear optical material Na2Ga2SiS6 has been synthesized for the first time, crystallizing in the Fdd2 (no. 43) noncentrosymmetric space group. Its three-dimensional tunnel framework consists of two typical NLO active motifs [GaS4] and [SiS4], with Na+ cations located inside the tunnels. Na2Ga2SiS6 exhibits comprehensive optical properties, namely, a wide transmission range, a high laser-induced damage threshold (10 × AgGaS2), a type-I phase-matching second-harmonic generation response (0.2 × AgGaS2), and especially a wide band gap (3.93 eV), which is the largest in the A2MIII2MIVQ6 (A = alkali metals; MIII = IIIA elements; MIV = IVA elements; Q = S and Se) family. Therefore, Na2Ga2SiS6 does not produce two-photon absorption under a 1064 nm laser pump and could be used in high-energy laser systems, which makes Na2Ga2SiS6 a promising candidate for high-energy IR NLO applications.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2016
·
IF 9.407
Yaoguo Shen,Yi Yang,Sangen Zhao,Bingqing Zhao,Zheshuai Lin,Chengmin Ji,Lina Li,Ping Fu,Maochun Hong,Junhua Luo
Developing superior deep-ultraviolet (deep-UV) nonlinear optical (NLO) materials is a great challenge because of the contradiction between deep-UV transparency and enhanced second harmonic generation (SHG), especially for deep-UV NLO phosphates in which the constituent P–O groups have relatively small microscopic SHG coefficients. Here we report a new noncentrosymmetric phosphate Cs2LiPO4 (I), whose crystal structure consists of [LiPO4]∞ layered structural units with a novel honeycomb-like topology. As compared with the benchmark deep-UV NLO material KBe2BO3F2, I is beryllium-free, and it is relatively easy to grow its large single crystals because of its congruent melting. Furthermore, it not only is deep-UV transparent but also exhibits an unexpectedly enhanced SHG response of 1.8 × KH2PO4 that hits a new high in deep-UV NLO phosphates. These results demonstrate that I satisfies the key requirements of being a promising deep-UV NLO candidate. Theory calculations and structural analysis reveal that the enhanced SHG response can be attributed to the honeycomb-like topological structure, which endows the constituent [PO4]3– monomers of I with an aligned arrangement and as a result a favorable superposition of their microscopic SHG coefficients. These findings may provide useful insights into the development of both deep-UV NLO materials and honeycomb-like topological structures.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）