Nonvolatile holographic storage in near-stoichiometric Ce：Fe：LiNbO3 crystal
-
摘要: 为了研究近化学计量比Ce:Fe:LiNbO3晶体的非挥发全息存储固定,测试了晶体的光谱特性,发现近化学计量比Ce:Fe:LiNbO3晶体较同成分Ce:Fe:LiNbO3晶体的红外透射谱变窄,峰值位于3466cm-1处;而紫外光谱发生紫移。并采用单、双光子存储方法进行了理论分析和实验验证。结果表明,单光子照射实验中,用汞灯预照晶体比不用汞灯预照的衍射效率要高;而双光子存储的性能参量明显优于单光子存储的性能参量。Abstract: In order to study nonvolatile holographic storage of near-stoichiometric Ce: Fe: LiNbO3 crystal,the spectrum of near-stoichiometric Ce: Fe: LiNbO3 crystal was tested.The results indicated that the infrared transmission spectra of the near-stoichiometric Ce: Fe:LiNbO3 crystal was narrower than that of congruent Ce:Fe:LiNbO3 crystal.the peak was located at 3466cm-1,and its ultraviolet spectrum shifted forward to violet.With single-photon and two-photon storage methods,nonvolatile holographic storage of near-stoichiometric Ce:Fe:LiNbO3 crystal was realized in theory and experiment.The results showed that in the single-photon storage experiments,the diffraction efficiency with the presence of mercury lamp became higher than that without mercury lamp.The performance in two-photon storage scheme was better than that in single-photon storage scheme.
-
-
[1] PANG Zh G,YU K X,FAN H.Study of the optinum operating mode in lithium niobate acousto-electro-optic modulator[J].Laser Technology,2007,31(2):160-162(in Chinese).
[2] WANG Y H,YUAN W,LIU G Q.Study on the characteristics of scattering noise in photorefractive holographic storage[J].Chinese Journal of Lasers,2003,30(6):529-532(in Chinese).
[3] XU X G,XU G B,HU D W,et al.Holographic propertics of cerium-ferrum serica co-doped lithium niobate[J].Acta Optica Sinica,2004,24(7):947-952(in Chinese).
[4] YAO J H,YAN B X,CHEN Y H,et al.Periodically poled second harmonic green light generation in near-stoichiometric MgO-doped LiNbO3 crystal[J].Laser Technology,2004,28(2):141-143(in Chinese).
[5] BUSE K,ADIBI A,PSALTIS D.Non-volatile holographic storage indoubly doped lithium niobate crystals[J].Nature,1998,393(7):665-668.
[6] YUE X,ADIBI A,HUDSON T,et al.Role of cerium in lithium niobate for holographic recording[J].J A P,2000,87(9):4051-4055.
[7] REN L R,LIU L R,LIU D A,et al.Optimal switching from recording to fixing for high diffraction efficiency from a LN:Cu:Ce photo refractive nonvolatile hologram[J].Opt Lett,2004,29(2):186-188.
[8] XU Zh P.Study on growth and holographic propertics of cerium ferrum serica codoped lithium niobate[D].Harbin:Harbin Institute of Technology,2006:24-31(in Chinese).
[9] LI M H,YANG Ch H,XU Y H.Photorefractive crystal materials science introduction[M].Beijing:Science Press,2003:140-141(in Chinese).
[10] SCHIRMER O F,THIEMANN O,WOCHLECKE M.Defects inLiNbO3 experimental aspects[J].Journal of Physics and Chemistry of Solids,1991,52(2):185-200.
[11] LEE M,TAKEKAWN S,FURUKAWA Y,et al.Nonvolatile two-color holographic storage in Tb-doped LiNbO3[J].A P L,2000,76(13):l653-1655.
计量
- 文章访问数: 1
- HTML全文浏览量: 0
- PDF下载量: 3
下载: