论文部分内容阅读
A non-synchronously-numerating experimental system is applied in this research.The effect of the incident beam intensity I and the beam incident angleθon beam fanning effect is investigated with a singular beam incident on Ce:KNSBN crystal.The results show that the beam fanning effect strongly depends on I andθ.The threshold effect of I for the beam fanning in Ce:KNSBN crystal is observed,and the threshold intensity of incident beam keeps the same value of 38.2 mW/cm 2 for differentθ,and the steady beam fanning intensity Ifsat reaches a peak atθ=15°under the same I.In addition,the effect of the incident beam modulated on the beam fanning noise and holographic storage in Ce:KNSBN crystal is studied.And the results suggest that the beam fanning noise is effectively suppressed,and the quality of the reappearance image is greatly improved.
A non-synchronously-numerating experimental system is applied in this research. The effect of the incident beam intensity I and the beam incident angle θon beam fanning effect is investigated with a singular beam incident on Ce: KNSBN crystal. The results show that the beam fanning effect strongly depends on I and the. The threshold effect of I for the beam fanning in Ce: KNSBN crystal is observed, and the threshold intensity of the incident beam keeps the same value of 38.2 mW / cm for different theta, and the steady beam fanning intensity Ifsat reaches a peak atθ = 15 ° under the same I. In addition, the effect of the incident beam modulated on the beam fanning noise and holographic storage in Ce: KNSBN crystal is studied. And the result of the beam fanning noise is effectively suppressed, and the quality of the reappearance image is greatly improved.