TY - JOUR
T1 - Experimental study on three dimensional optical data storage in LiF
T2 - F2
AU - Yu, Juan
AU - Cheng, Guang Hua
AU - Wang, Yi Shan
AU - Chen, Guo Fu
AU - Zhao, Wei
AU - Hou, Xun
PY - 2007/4
Y1 - 2007/4
N2 - Based on the conversion of F2 centers to F3+ centers using IR pulse laser in LiF : F2 crystal and the difference of fluorescence spectrum in the two centers, the principle experiment of three dimensional optical data storage was realized using multi-photons absorption writing technique and fluorescence confocal reflection readout. Using NA 0. 68 objective to focus on chirped amplified femtosecond laser pulse at 800 nm, 100 fs, 1 kHz inside LiF : F2 crystal, writing in 3D was done successfully by moving crystal; fast and non-destroy reflectional confocal data reading was operated by using 405 nm blue laser and detecting 540 nm fluorescence produced by F3+ centers. Compared with transmission confocal dispersion and phase contract read-out, this optical setup can be compatible with existent optical disc technology, and the structure is simple. The most important thing is that information recorded depends on the change of fluorescence rather than that of refractive index, so it is potential to achieve hundreds of layers readout.
AB - Based on the conversion of F2 centers to F3+ centers using IR pulse laser in LiF : F2 crystal and the difference of fluorescence spectrum in the two centers, the principle experiment of three dimensional optical data storage was realized using multi-photons absorption writing technique and fluorescence confocal reflection readout. Using NA 0. 68 objective to focus on chirped amplified femtosecond laser pulse at 800 nm, 100 fs, 1 kHz inside LiF : F2 crystal, writing in 3D was done successfully by moving crystal; fast and non-destroy reflectional confocal data reading was operated by using 405 nm blue laser and detecting 540 nm fluorescence produced by F3+ centers. Compared with transmission confocal dispersion and phase contract read-out, this optical setup can be compatible with existent optical disc technology, and the structure is simple. The most important thing is that information recorded depends on the change of fluorescence rather than that of refractive index, so it is potential to achieve hundreds of layers readout.
KW - Color center
KW - Femtosecond laser pulse
KW - Fluorescence reflection confocal microscope
KW - Multi-photons absorption
KW - Three-dimensional optical data storage
UR - http://www.scopus.com/inward/record.url?scp=34249305149&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:34249305149
SN - 1004-4213
VL - 36
SP - 627
EP - 630
JO - Guangzi Xuebao/Acta Photonica Sinica
JF - Guangzi Xuebao/Acta Photonica Sinica
IS - 4
ER -