Optimal conditions for thermal fixing of volume holograms in Fe:LiNbO3 crystals.
We analyze and compare two typical recording and thermal fixing procedures of a volume hologram in a Fe:LiNbO(3) crystal (low-high-low procedure and high-low procedure). We consider the kinetics of the recording, compensating, and developing processes by taking into account the ratio of the conductivities between the protons and the electrons as a function of temperature. From the analysis the optimal environmental conditions (in terms of the fixing temperature and the compensation time) for each fixing procedure can be deduced for a crystal with given material parameters.
Hsieh
C R
CR
Institute of Electro-optical Engineering, National Chiao Tung University, Hsin-Chu, Taiwan.
Lin
S H
SH
Hsu
K Y
KY
Hsieh
T C
TC
Chiou
A
A
Hong
J
J