Growth,thermal and optical properties of Yb:GdYAl3(BO3)4 crystal |
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| Affiliation: | 1. Department of Chemistry, Tsinghua University, China;2. The State Key Lab of Crystal Materials, Shandong University, Jinan 250100, China;1. Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, 522 510, A.P., India;2. Institute of Optoelectronics and Measuring Systems, Electrical Engineering Department, Czestochowa University of Technology, Aleja Armii Krajowej 17/19, Czestochowa, Poland;3. Institute of Electronics, Military University Technology, 00-908, Kaliskiego 2, Warsaw, Poland;1. Diagnostic Imaging Center, Kurume University Hospital, 67 Asahi-machi, Kurume-shi, Fukuoka 830-001, Japan;2. Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;3. Department of Health Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;4. Atomic Energy Research Institute, Kindai University, 3-4-1 Kowakae, Higashiosaka-shi, Osaka 577-8502, Japan;1. State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China;2. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;1. Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, PR China;1. Institute of Physics, West Pomeranian University of Technology, Al. Piastów 17, 70-310 Szczecin, Poland;2. Faculty of Arts and Sciences, Bahcesehir University, Beşiktaş, 34353 İstanbul, Turkey;1. Department of Mathematics and Physics, Chongqing University of Science and Technology , Chongqing 401331, PR China;2. College of Sciences, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China;3. Department of Material Science , Sichuan University, Chengdu 610064, PR China;4. International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, PR China;5. Department of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, PR China |
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| Abstract: | Single crystal of Yb:GdYAl3(BO3)4(Yb:GdYAB) has been grown by the flux method. The structure of Yb:GdYAB crystal has been determined by X-ray diffraction analysis. The experiment show that the crystal has the same structure as that of YAl3(BO3)4 crystal and its unit cell constants have been measured to be a = 9.30146 Å, c = 7.24164 Å, Vol = 542.59 Å3. The absorption and fluorescence spectrum of Yb:GdYAl3(BO3)4 crystal have also been measured at room temperature. In the absorption spectra, there are two absorption bands at 938 nm and 974 nm, respectively, which is suitable for InGaAs diode laser pumping. In the fluorescence spectra, there are two fluorescence peaks at 992 and 1040 nm. The thermal properties of Yb:GdYAl3(BO3)4 crystal have been studied for the first time. The thermal expansion coefficient along c-axis is almost 5.4 times larger than that along a-axis. The specific heat of the crystal has been measured to be 0.77 J/g °C at room temperature. The calculated thermal conductivity is 5.26 Wm−1 K−1 along a-direction. |
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