光子学报, 2015, 44 (12): 1214001, 网络出版: 2015-12-23  

超短脉冲数字全息泵浦-探测系统的能量测算

Power Measurement of Ultra-fast Pulse Digital Holography Pump-probe System
作者单位
1 天津理工大学 电子信息工程学院,天津 300384
2 南开大学 现代光学研究所 教育部光电信息技术科学重点实验室,天津 300071
摘要
提出了一种测算探测系统所需能量最低值的方法.利用该方法分别针对子脉冲能量不均匀和子脉冲能量均匀的脉冲数字全息光路系统进行讨论, 计算得到其探测系统对入射光强的能量利用率分别为41.3%和28.8%.用马赫-曾德干涉仪测出用以记录干涉条纹的电荷耦合器件能够有效记录全息图的能量临界值为56.7 mW.根据能量临界值和入射光能量利用率反推出两种探测系统所需的最低能量分别为0.86 W和1.575 W.
Abstract
A method of measuring the lowest energy in the detection system was proposed. The system in which the power of subpulse is equable and the system in which the power of subpulse is inequable were studied by the proposed method, the results show that the energy efficiency of input intensity are 41.3% and 28.8%, respectively. The threshold energy of the charge-coupled device which used to detect the interference fringe is measured of 56.7 mW by using Mach-Zehnder interferometers. The energy two kinds of detecting systems need are 0.86 W and 1.575 W respectively calculated by the measured energy efficiency and threshold.
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岳文艳, 杨晓苹, 杨勇. 超短脉冲数字全息泵浦-探测系统的能量测算[J]. 光子学报, 2015, 44(12): 1214001. YUE Wen-yan, YANG Xiao-ping, YANG Yong. Power Measurement of Ultra-fast Pulse Digital Holography Pump-probe System[J]. ACTA PHOTONICA SINICA, 2015, 44(12): 1214001.

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