Optical properties of Nd3+ pairs in LiYF4-existence of a short range interaction |
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| Affiliation: | 1. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150080, China;2. Key Laboratory of Transparent and Opto-functional Advanced Inorganic Materials, CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;1. State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;2. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150080, China;1. Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;1. College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China;2. Heilongjiang Province Key Laboratory of Optoelectronics and Laser Technology, Heilongjiang Institute of Technology, Harbin 150050, China;1. Department of Electronic Engineering, Xiamen University, Xiamen 361005, China;2. Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China;3. School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai 200092, China |
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| Abstract: | ![]()
Optical studies of Bridgman grown LiYF4 crystals weakly doped with Nd3+ have been made in the vicinity of the 4I9/2→4G5/2 transition. By selective excitation with a narrow pulsed laser or with a CW monomode laser, excitation spectra and dynamical characteristics of infrared and ultraviolet (up-converted) fluorescences produced by satellites associated with Nd3+ pairs have been obtained. From the results, an assignment of the satellites to the various classes of pairs has been possible. The existence of a short range interaction, probably superexchange, has been proved which confirms previous observations in another fluoride compound, LaF3. |
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