Youxuan Sun

Shandong University

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Xutang Tao

City University of Hong Kong, Shenzhen Research Institute

Zeliang Gao

State Key Laboratory of Crystal Materials

Xiangxin Tian

Linyi University

Qian Wu

Nankai University

Conggang Li

Tianjin University of Technology

Fuan Liu

State Key Laboratory of Crystal Materials

Weiqun Lu

Seoul National University

Junjie Zhang

Shandong University

Chengqian Zhang

Zhejiang University

Qingpu Wang

Shandong University

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Shandong University

State Key Laboratory of Crystal Materials

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Ministry of Education of the People's Republic of China

Peking University

Tsinghua University

Zhejiang University

Jiangsu University

Shanghai Jiao Tong University

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Li₂MTeO₆ (M=Ti, Sn): Mid‐Infrared Nonlinear Optical Crystal with Strong Second Harmonic Generation Response and Wide Transparency Range

Angewandte Chemie International Edition (2021)

Xiaoli Du Xiaojie Guo Zeliang Gao Fuan Liu Feifei Guo

Abstract Oxide crystals have been widely used in nonlinear optics (NLO) in the ultraviolet–visible and near‐infrared regions. Most traditional oxide crystals are restricted to the mid‐infrared region due to their narrow transmission window. Hence, attempting to extend infrared cutoff wavelength of oxides has attracted much attention. Herein, we report two new tellurates Li 2 TiTeO 6 (LTT) and Li 2 SnTeO 6 (LST) with broad transparent regions of 0.38–6.72 and 0.38–6.86 μm, respectively, as excellent candidates for mid‐infrared NLO applications. Both LTT and LST crystallize in the orthorhombic space group Pnn2. The LTT crystal exhibits intense powder second‐order generation efficiency (26×KDP) under the fundamental wavelength of 1064 nm. First‐principles calculations and dipole moments were used to illustrate the results of the powder second‐harmonic generations based on the crystal structures. Our results provide a novel oxide NLO crystal with a strong SHG and wide transparency range. They also pave a way for the design of new oxide mid‐IR NLO crystals.

Orthorhombic crystal system

Crystal (programming language)

Ultraviolet

10.1002/anie.202108978

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Citations (51)

Synthesis, crystal growth, and characterization of the orthorhombic BaTeW2O9: a new polymorph of BaTeW2O9

CrystEngComm (2013)

Zhonghan Zhang Xutang Tao Junjie Zhang Youxuan Sun Chengqian Zhang

A new polymorph of BaTeW2O9 with space group Pnma was identified during the exploration of the BaO-WO3–TeO2 system. Single-crystal X-ray diffraction measurements show that the material exhibits a 3D tunnel structure consisting of W–O6 octahedra connected with Te–O3 tetrahedra. Bulk single crystals of orthorhombic BaTeW2O9 with dimensions of 24 mm × 22 mm × 15 mm were grown by a top-seeded solution growth (TSSG) method using TeO2 as flux. Theoretical morphology of the crystal was obtained using the Bravais–Friedel and Donnay–Harker methods for comparison. The crystal shows a high transmittance from 360 nm to 5 μm as well as large birefringence (with Δn = 0.247 at 404.7 nm). The Raman spectrum shows that there is a Raman shift with high intensity and narrow peak width at 910.93 cm−1. TGA and DSC analysis indicate that the material melts incongruently at 783 °C. The thermal conductivity of the crystal was measured to be 1.23, 2.61 and 0.95 W m−1 K−1 at 50 °C along the a-, b- and c-axes, respectively.

Orthorhombic crystal system

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10.1039/c3ce41272e

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CSD 1031033: Experimental Crystal Structure Determination

The Cambridge Structural Database (2015)

Xiangxin Tian Qian Wu Peng Zhao Zheng Wang Xiaoxiao Feng

An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the joint CCDC and FIZ Karlsruhe Access Structures service and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Crystal (programming language)

10.25505/fiz.icsd.cc13lw4q

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Li₂MTeO₆ (M=Ti, Sn): Mid‐Infrared Nonlinear Optical Crystal with Strong Second Harmonic Generation Response and Wide Transparency Range

Angewandte Chemie (2021)

Xiaoli Du Xiaojie Guo Zeliang Gao Fuan Liu Feifei Guo

Orthorhombic crystal system

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Ultraviolet

10.1002/ange.202108978

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Tailored fabrication of a prospective acousto–optic crystal TiTe₃O₈endowed with high performance

Journal of Materials Chemistry C (2018)

Weiqun Lu Zeliang Gao Qian Wu Xiangxin Tian Youxuan Sun

A prospective acousto–optic crystal TiTe₃O₈with superior thermal features and appreciable transparency is rationally fabricated.

Crystal (programming language)

10.1039/c7tc05382g

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Citations (22)

Crystal growth and thermal properties of a LiY(MoO₄)₂ crystal

CrystEngComm (2022)

Wanling Rong Fuan Liu Lijuan Chen Jian Zhang Youxuan Sun

A high-quality tetragonal LiY(MoO 4 ) 2 single crystal was grown by a top-seeded solution growth method. Based on the quality evaluation, the optical transmission and thermal properties of the LiY(MoO 4 ) 2 single crystal were fully characterized.

Tetragonal crystal system

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10.1039/d2ce01498j

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Self-frequency-doubled KTiOAsO_4 Raman laser emitting at 573 nm

Optics Letters (2009)

Zhaojun Liu Qingpu Wang Xingyu Zhang Sasa Zhang Jun Chang

A self-frequency-doubled KTiOAsO4 (KTA) Raman laser is realized in a diode-end-pumped acousto-optically Q-switched intracavity Raman laser configuration. A 30-mm-long x-cut KTA crystal is used as the Raman medium, and its 671 cm(-1) Raman mode is employed to finish the conversion from 1064 nm fundamental laser to 1146 nm Raman laser. Self-frequency doubling of the Raman laser is accomplished in the same KTA crystal, and a 573 nm yellow laser is obtained. With an incident diode power of 10.9 W and a pulse repetition rate of 20.8 kHz, a yellow-laser power of 0.82 W is obtained. The conversion efficiency from diode power to yellow-laser power is 7.5%.

Raman laser

Laser diode

10.1364/ol.34.002183

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Theoretical and experimental studies on output characteristics of an intracavity KTA OPO

Optics Express (2012)

Fen Bai Qingpu Wang Zhaojun Liu Xingyu Zhang Xuebin Wan

An acousto-optically Q-switched Nd:YVO4/KTiOAsO4 (KTA) intracavity optical parametric oscillator (OPO) is efficiently realized in singly resonated scheme. With an end-pumping diode power of 25.9 W, output signal (1535 nm) power of 3.77 W and idler power (3467 nm) of 1.18 W are obtained at a pulse repetition rate of 50 kHz. A rate-equation model is set up to simulate the output power and time characteristics of both signal and idler waves. And both the numerical and experimental results show that the idler pulse width is shorter than the signal one in a singly resonant OPO.

SIGNAL (programming language)

10.1364/oe.20.000807

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Top-seeded solution growth, spectral analysis and laser properties of a novel Nd-doped Bi₂Mo_2.66W_0.34O₁₂ crystal

CrystEngComm (2023)

Xiangxin Tian Lijuan Chen Youxuan Sun Zeliang Gao

Bulk single crystals of Nd:Bi 2 Mo 2.66 W 0.34 O 12 with dimensions up to 80 mm × 57 mm × 35 mm were grown and the laser performances were determined.

10.1039/d3ce00623a

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Investigations of the electro-optic behavior of Cs2TeMo3O12 single crystal

Journal of Applied Physics (2014)

Zeliang Gao Youxuan Sun Junjie Zhang Shanpeng Wang Xutang Tao

The electro-optic (EO) property of hexagonal Cs2TeMo3O12 (CTM) crystal is studied with interference technique at 632.8 nm. Both the value and sign of the EO coefficients have been obtained and confirmed. The largest EO coefficient is 10.4 pm/V for r33 due to its structure distortion along c-axis. The transverse effective EO effect of r33 and the half-wave voltage are calculated to be 11.08 pm/V and 5200 V at 1064 nm, respectively. The experimental results show that CTM can be one of promising candidates for the EO applications, especially in the mid-infrared region.

Distortion (music)

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10.1063/1.4890975

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Citations (6)