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消光比测量
相关语句
  extinction ratio measurement
     The extinction ratio measurement formula in the maximal measurement distance--extinction ratio testing method of pulse laser range finder is described.
     介绍了脉冲激光测距机最大测程———消光比测试方法中的消光比测量原理公式。
短句来源
  “消光比测量”译为未确定词的双语例句
     The temperature sensor is experimentally realized based on the above theory, which has the sensitivity of 0.0353 nm/℃ and 0.0684 dB/℃ , respectively.
     实验上制作出了基于级联LPG的光纤温度传感器。 利用其某一干涉峰的中心波长和消光比测量温度 变化时,测量灵敏度分别为0.0353 nm/℃和0.0684 dB/℃。
短句来源
     Extinction ratio, as one of primary optical parameters of polarizers, whose measurement belongs to the field of photometry measurement of weak light signal, and is totally different from the general photometric method.
     消光比测量属于弱光信号光度学测量,其测试方法不同于一般的光度测量。 消光比测量的精确程度将影响到利用偏光器件对各种光辐射的偏振性质进行测量和鉴别的检测精度,以及利用偏光器件对其它具有偏光变换性质的光学器件和仪器系统的偏振响应的检测和分析。
短句来源
     The test result indicates that with the proposed measurement theory and method,the extinction ratio of crystal can be measured to 10~(-6),the repeat accuracy of the phase retardation of wave plate can be measured to better than 0.5°. Moreover,by using the longitudinal modulation technology,the half-wave voltage of electro-optic crystal can be measured accurately.
     实践证明,运用文中的测量原理和方法,晶体的消光比测量可达到10-6,波片相位延迟的测量重复性精度优于0.5°,此外,运用电光晶体的纵向调制技术,还可精确测量出电光晶体的半波电压。
短句来源
  相似匹配句对
     Measurement of Extinction Ratio of Polarizers
     激光偏光棱镜消光测量
短句来源
     Accuracy Measurement of SDH Equipment Optical Transmitter Extinction
     SDH设备光发送机消光的精确测量
短句来源
     Measurement of Extinction Ratio of Polarizer Using Interference Method of Polarization
     偏振干涉法用于偏振器消光测量
短句来源
     Study on the Feasibility about Automatic Measurements of Extinction Ratio
     消光自动测量可行性研究
短句来源
     Measurement of skin diffuse reflectance ratio of laser radiation
     皮肤的激光漫反射测量
短句来源
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The abnormal phenomena in the transmitted light passing through a-LiIO_3 single crystals under the application of a DC field parallel to the c-axis have been further investigated by means of the direct projection method, the optical Fourier transfor-mation method and the Schlieren method. The change in the spacial frequency spectrum of a z-cut crystal plate with the increase of the applied field intensity was examined. It was observed that the diffraction efficiency of the transmitted light shows a linear dependence...

The abnormal phenomena in the transmitted light passing through a-LiIO_3 single crystals under the application of a DC field parallel to the c-axis have been further investigated by means of the direct projection method, the optical Fourier transfor-mation method and the Schlieren method. The change in the spacial frequency spectrum of a z-cut crystal plate with the increase of the applied field intensity was examined. It was observed that the diffraction efficiency of the transmitted light shows a linear dependence on the applied voltage, but is independent of the polariza-tion of the incident light. It was also found that the light polarization is not changed by the action of the DC field and the effect of absorption is negligible. The relaxa-tion process of the change in diffraction efficiency with time was recorded quantita-tively. A tentative explanation of these phenomena has been given.

本文利用投影法、光学傅里叶频谱分析法和纹影法,对静电场作用下α-碘酸锂单晶的透射光场异常分布作了进一步观察。考察了z-切样品的透射光场的空间频谱随电压升高而改变的情况。利用高通滤波器进行滤波,观察到晶体的透射光的衍射效率与外加电压成线性关系,并与电场方向和晶体电正极面之相对取向有关,但是不依赖于入射光的偏振状态。消光比的测量表明,静电场的作用不改变光的偏振态。定量地记录了衍射效率随时间变化的弛豫过程。

The“half-wave voltage”usually was used to assess the modulated property of different electrooptic crystals. Beside this factor, we must take into account the extinction ratio(defined as the ratio of the maximum to the minimum transmitted light intensity). The size of the extinction ratio depends not only on the optical homogeneity of the crystal, but also on the radius of the laser beam. Therefore, we often used the fluctuation of the nature birefringence to show the optical inhomogeneity of the crystal. In...

The“half-wave voltage”usually was used to assess the modulated property of different electrooptic crystals. Beside this factor, we must take into account the extinction ratio(defined as the ratio of the maximum to the minimum transmitted light intensity). The size of the extinction ratio depends not only on the optical homogeneity of the crystal, but also on the radius of the laser beam. Therefore, we often used the fluctuation of the nature birefringence to show the optical inhomogeneity of the crystal. In this paper, an automatic scaning measurement method which has more advantages than the extinction angle method was described. The equipment also was used to investigate dynamic and static extinction ratio, influences of electric domains on the optical homogeneity and electrooptic effect in LNbo_3 crystals. and to obtain the signal of the phase transition of LiNbo_3 crystal near 75℃. Finally, we discussed the measured results.

调制晶体的性能好坏,通常是由半波电压和消光比这二个量来表征的。而消光比往往与晶体的光学均匀性有关。本文介绍了一种可用于测量晶体的双折射率梯度、消光比、半波电压以及双折射率随温度变化的自动扫描装置及工作原理。该方法和其他方法相比具有测量速度快,重复性好,及误差小等优点,并可以从扫描曲线上直接定性地判别晶体的光学性能的好坏,文章最后还做了双折射率梯度及消光比的测量,并对实验结果进行了讨论。

The “half-wave voltage” usually was used to assess the modulated property of different eleetrooptic crystals.Beside this factor,we must take into account the extinction ratio (defined as the ratio of the maximum to the minimum transmitted light intensity). The size of the extinction ratio depends not only on the optical homogeneity of the crystal,but also on the radius of the laser beam.Therefore,we often used the fluctuation of the nature birefringence to show the optical inhomogeneity of the crystal. In this...

The “half-wave voltage” usually was used to assess the modulated property of different eleetrooptic crystals.Beside this factor,we must take into account the extinction ratio (defined as the ratio of the maximum to the minimum transmitted light intensity). The size of the extinction ratio depends not only on the optical homogeneity of the crystal,but also on the radius of the laser beam.Therefore,we often used the fluctuation of the nature birefringence to show the optical inhomogeneity of the crystal. In this paper,an automatic scaning measurement method which has more advantages than the extinction angle method was described. The equipment also was used to investigate dynamic and static extinction ratio,influences of electric domains on the optical homogeneity and electrooptic effect in LiNbo_3 crystals.and to obtain the signal of the phase transition of LiNbo_3 crystal near 75℃. Finally,we discussed the measured results.

调制晶体的性能好环,通常是由半波电压和消光比这二个量来表征的。而消光比往往与晶体的光学均匀性有关。本文介绍了一种可用于测量晶体的双折射率梯度、消光比、半波电压以及双折射率随温度变化的自动扫描装置及工作原理。该方法和其他方法相比具有测量速度快,重复性好,及误差小等优点,并可以从扫描曲线上直接定性地判别晶体的光学性能的好坏,文章最后还做了双折射率梯度及消光比的测量,并对实验结果进行了讨论。

 
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