[2] [2] CHENG Guang-hua,WANG Yi-shan,WHITE J D,et al.Demonstration of high-density three-dimensional storage in fused silica by femtosecond laser pulses[J].Journal of Applied Physics,2003,94(3):1304-1307.

[4] [4] LIU Qing,CHENG Guang-hua,CHEN Guo-fu.Three-dimensional optics storage in fused silica using modulated femtosecond pulses[J].Chinese Optics Letters,2004,2(5):292-294.

[5] [5] HE Feng-tao,CHENG Guang-hua,FENG Xiao-qiang,et al.Three-dimensional optical data storage using a solid immersion lens to focus a femtosecond laser pulse[J].Chinese Optics Letters,2004,2(8):423-425.

[10] [10] AKSELROD Mark S,AKSELROD Anna E,ORLOV S S.New aluminum oxide single crystals for volumetric optical data storage[C].SPIE,2003,5069:244-251.

[11] [11] VOYTOVICH A P,KALIMOV V S,MIKHNOV S A,et al.Investigation of spectral and energy characteristics of green radiation generated in lithium fluoride with radiation color centers[J].Soy J Quantum Electron,1987,17(6):780-782.

[12] [12] TSUBOI T,TER-Mikirtychev V V.Characteristics of the LiF:F3+ color center laser[J].Opt Commun,1995,116 (4-6):389-392.

[14] [14] BALDACCHINI Giuseppe,MONTEREALI Rosa Maria.New perspectives of coloured LiF for optoelectronic devices[J].Optic Materials,2001,16 (1):53-61.

[15] [15] GU H E,QI L.The two-step creation and tunable laser operation of F3+ centers in LiF crystals[J].Opt Commun,1989,2(70):141-144.

[16] [16] TSUBOI T,GU H E.Room-temperature-stable LiF:F3+color-center laser with a two-mirror cavity[J].Applied Optics,1994,33(6):982 984.

[17] [17] KAWAMURA Ken-ichi,MASAHIRO Hirano.Femtosecondlaser-encoded distributed-feedback color center laser in lithium fluoride single crystals[J].Applied Physics Letters,2004,84(3):311-313.