Optical memory in DuPont photopolymers by using femtosecond laser pulses

被引:0
|
作者
Trinh, Minh-Tuan
Lee, Sun-Kyun
Lim, Ki-Soo [1 ]
Kim, Eunkyung
机构
[1] Chungbuk Natl Univ, BK Program 21, Dept Phys, Cheongju 361763, South Korea
[2] Chungbuk Natl Univ, Basic Sci Res Inst, Cheongju 361763, South Korea
[3] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea
关键词
femtosecond laser; DuPont photopolymer; two-photon; optical memory;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
To investigate the feasibility of a high density optical memory in photopolymers, we used two-photon absorption of near-infrared femtosecond laser pulses to perform bit-wise three-dimensional storage. We monitored the transmitted probe beam, which was modulated by the change of refractive index caused by the femtosecond laser irradiation. The size of the spots generated by the focused Gaussian beam depended on the laser intensity and exposure time. The minimum lateral and longitudinal sizes of a spot were estimated as 0.5 and 5 mu m, respectively.
引用
收藏
页码:474 / 478
页数:5
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