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Determination of the polarization characteristics of the ELBE free electron laser

机译:ELBE自由电子激光器的偏振特性测定

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摘要

In this work, we investigated polarization characteristics of the ELBE infrared free electron laser at the experimental position by adapting imaging ellipsometry technique. We found that the laser beam has a Gaussian-like power distribution with a diameter of 3-4 mm and exhibits a linearly polarized character throughout the whole area investigated. We also evaluated the degree of polarization amounting to 98% which demonstrates a tiny depolarization effect during the beam transfer via several optical elements from the source to the experimental position. (C) 2008 Elsevier B.V. All rights reserved.
机译:在这项工作中,我们通过采用成像椭偏技术研究了ELBE红外自由电子激光在实验位置的偏振特性。我们发现,激光束具有直径为3-4 mm的高斯型功率分布,并且在整个研究区域内显示出线性偏振特性。我们还评估了偏振度,达到98%,这表明在光束通过多个光学元件(从光源到实验位置)的传输过程中,偏振作用很小。 (C)2008 Elsevier B.V.保留所有权利。

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