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Quasi-phase-matched gratings printed by all-optical poling in polymer films

机译:全光极化在聚合物薄膜中印刷的准相位匹配光栅

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摘要

The all-optical poling technique permits polar orientation of molecules. For efficient poling of thin films the relative phases, amplitudes, and polarizations of the two interfering beams must be controlled. We present an original stable one-arm interferometer that is specific to the recording of two-color interference. It relies on the index dispersion of optical glasses. This interference technique permits true real-time nonperturbative monitoring of the polar orientation process and easy all-optical poling of thin-film materials without the need for phase control. This new configuration opens the door to the realization of customized phase-matched wave-guided frequency-conversion devices for the near infrared. (C) 2002 Optical Society of America. [References: 17]
机译:全光极化技术允许分子的极性取向。为了有效地极化薄膜,必须控制两个干涉光束的相对相位,幅度和偏振。我们提出了一种原始稳定的单臂干涉仪,专门用于记录两种颜色的干涉。它依赖于光学玻璃的折射率色散。这种干涉技术允许对极性取向过程进行真正的实时非扰动监测,并且无需相位控制即可轻松地对薄膜材料进行全光学极化。这种新的配置为实现定制的近红外波匹配频率转换设备打开了大门。 (C)2002年美国眼镜学会。 [参考:17]

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