Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals
A series of LiNbO3: Mo, Hf crystals with 0.5 mol % fixed MoO3 and various HfO2 concentrations (0.0, 2.0, and 3.5 mol %) were grown by the Czochralski technique. The photorefractive properties of the LiNbO3: Mo, Hf crystals were investigated by two-wave coupling measurements and the beam distortion m...
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MDPI AG
2018-08-01
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| author | Ling Zhu Dahuai Zheng Shahzad Saeed Shuolin Wang Hongde Liu Yongfa Kong Shiguo Liu Shaolin Chen Ling Zhang Jingjun Xu |
| author_facet | Ling Zhu Dahuai Zheng Shahzad Saeed Shuolin Wang Hongde Liu Yongfa Kong Shiguo Liu Shaolin Chen Ling Zhang Jingjun Xu |
| author_sort | Ling Zhu |
| collection | DOAJ |
| description | A series of LiNbO3: Mo, Hf crystals with 0.5 mol % fixed MoO3 and various HfO2 concentrations (0.0, 2.0, and 3.5 mol %) were grown by the Czochralski technique. The photorefractive properties of the LiNbO3: Mo, Hf crystals were investigated by two-wave coupling measurements and the beam distortion method was employed to obtain the optical damage resistance ability. The UV-visible and OH− absorption spectra were also studied. The experimental results imply that the photorefractive properties of LiNbO3: Mo crystals at laser wavelengths of 532, 488, and 442 nm can be greatly enhanced by doping HfO2 over the threshold concentration. At 442 nm especially, the response time of LN: Mo, Hf3.5 can be shortened to 0.9 s with a diffraction efficiency of 46.07% and a photorefractive sensitivity reaching 6.28 cm/J. Besides this, the optical damage resistance at 532 nm is 3 orders of magnitude higher than that of the mono-doped LiNbO3: Mo crystal, which is beneficial for applying it in the field of high-intensity lasers. |
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| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T18:23:28Z |
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| spelling | doaj.art-ab19addc482d430db6307e52378bf4792022-12-22T04:09:42ZengMDPI AGCrystals2073-43522018-08-018832210.3390/cryst8080322cryst8080322Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 CrystalsLing Zhu0Dahuai Zheng1Shahzad Saeed2Shuolin Wang3Hongde Liu4Yongfa Kong5Shiguo Liu6Shaolin Chen7Ling Zhang8Jingjun Xu9School of Physics, Nankai University, Tianjin 300071, ChinaThe MOE Key Laboratory of Weak-Light Nonlinear Photonics and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, ChinaSchool of Physics, Nankai University, Tianjin 300071, ChinaSchool of Physics, Nankai University, Tianjin 300071, ChinaSchool of Physics, Nankai University, Tianjin 300071, ChinaSchool of Physics, Nankai University, Tianjin 300071, ChinaSchool of Physics, Nankai University, Tianjin 300071, ChinaThe MOE Key Laboratory of Weak-Light Nonlinear Photonics and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, ChinaThe MOE Key Laboratory of Weak-Light Nonlinear Photonics and TEDA Institute of Applied Physics, Nankai University, Tianjin 300457, ChinaSchool of Physics, Nankai University, Tianjin 300071, ChinaA series of LiNbO3: Mo, Hf crystals with 0.5 mol % fixed MoO3 and various HfO2 concentrations (0.0, 2.0, and 3.5 mol %) were grown by the Czochralski technique. The photorefractive properties of the LiNbO3: Mo, Hf crystals were investigated by two-wave coupling measurements and the beam distortion method was employed to obtain the optical damage resistance ability. The UV-visible and OH− absorption spectra were also studied. The experimental results imply that the photorefractive properties of LiNbO3: Mo crystals at laser wavelengths of 532, 488, and 442 nm can be greatly enhanced by doping HfO2 over the threshold concentration. At 442 nm especially, the response time of LN: Mo, Hf3.5 can be shortened to 0.9 s with a diffraction efficiency of 46.07% and a photorefractive sensitivity reaching 6.28 cm/J. Besides this, the optical damage resistance at 532 nm is 3 orders of magnitude higher than that of the mono-doped LiNbO3: Mo crystal, which is beneficial for applying it in the field of high-intensity lasers.http://www.mdpi.com/2073-4352/8/8/322LiNbO3 crystalmolybdenum and hafnium co-dopingphotorefractive properties |
| spellingShingle | Ling Zhu Dahuai Zheng Shahzad Saeed Shuolin Wang Hongde Liu Yongfa Kong Shiguo Liu Shaolin Chen Ling Zhang Jingjun Xu Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals Crystals LiNbO3 crystal molybdenum and hafnium co-doping photorefractive properties |
| title | Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals |
| title_full | Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals |
| title_fullStr | Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals |
| title_full_unstemmed | Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals |
| title_short | Photorefractive Properties of Molybdenum and Hafnium Co-Doped LiNbO3 Crystals |
| title_sort | photorefractive properties of molybdenum and hafnium co doped linbo3 crystals |
| topic | LiNbO3 crystal molybdenum and hafnium co-doping photorefractive properties |
| url | http://www.mdpi.com/2073-4352/8/8/322 |
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