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OH− absorption and one-color holographic recording in Ru:Fe:LiNbO3 crystals varied co-doped with HfO2
Affiliation:1. Applied Science College, Harbin University of Science and Technology, Harbin 150080, China;2. Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China;1. Applied Physics Division, Soreq NRC, Yavne 81800, Israel;2. Department of Electrical Engineering—Physical Electronics, Faculty of Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel;3. Micro- and Nano-Fabrication Unit (MNFU), Department of Electrical Engineering, Technion—Israel Institute of Technology, Haifa 32000, Israel;4. The Center for Nano Science and Nanotechnology, Faculty of Science, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, 3 Krzhyzhanivsky Street, Kyiv 03142, Ukraine;2. Department of Physics, Eastern European National University, 13 Voli Avenue, Lutsk 43025, Ukraine;3. Department of Inorganic and Physical Chemistry, Eastern European National University, 13 Voli Avenue, Lutsk 43025, Ukraine;1. College of Chemistry, Jilin University, Changchun 130012, PR China;2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China;1. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain;2. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain;3. Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain
Abstract:A series of Ru:Fe:LiNbO3 crystals with various doping concentrations of HfO2 were grown by the Czochralski technique. Their defect structures were analyzed by the infrared absorption spectra and the Lorentzian fitting. The one-color holographic storage characteristics of these crystals were investigated by means of two-wavelength technology. The experimental results showed that fast response time of 12.7 s and high one-color holographic recording sensitivity of 0.53 cm/J were obtained in Hf(5 mol%):Ru:Fe:LiNbO3 crystal, meanwhile the fixed diffraction efficiency was as high as 44.3%. These results indicated Hf, Ru and Fe co-doped LiNbO3 crystals were outstanding media for holographic storage applications.
Keywords:Infrared spectra  One-color holographic storage  Two-wavelength technology
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