Nonvolatile Two-Color Holographic Recording in Er-Doped LiNbO_3(Optics and Quantum Electronics)
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概要
- 論文の詳細を見る
We demonstrate nonvolatile two-color holographic recording in as-grown and reduced Er-doped LiNbO_3. It is found that, unlike the case of near-stoichiometric LiNbO_3 reported previously, the diffraction efficiency can be increased by a factor of 〜5 after the reduction treatment. The recording sensitivity and the figure of merit M/# for the reduced crystal are measured to be 9×10^<-4>cm/J and 0.02, respectively, with a 488-nm gating beam at an intensity of 1 W/cm^2 and 780-nm writing beams at a total intensity of 2 W/cm^2. Results of the light-induced absorption measurement suggest that the small polarons are responsible for the two-color photosensitivity in Er-doped LiNbO_3.
- 社団法人応用物理学会の論文
- 2001-10-01
著者
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Tomita Yasuo
Department Of Electronics Engineering University Of Electro-communications
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HOSHI Mitsunari
Department of Electronics Engineering, University of Electro-Communications
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SUNARNO Steven
Department of Electronics Engineering, University of Electro-Communications
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Sunarno Steven
Department Of Electronics Engineering University Of Electro-communications
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Hoshi Mitsunari
Department Of Electronics Engineering University Of Electro-communications
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TOMITA Yasuo
Department of Civil Engineering Kobe University
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