Apostoluk Aleksandra, Chapron David, Gadret Grégory, Sahraoui Bouchta, Nunzi Jean-Michel, Fiorini-Debuisschert Céline, Raimond Paul
Opt Lett. 2002 Nov 15;27(22):2028-30. doi: 10.1364/ol.27.002028.
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.
全光极化技术可使分子实现极化取向。对于薄膜的高效极化，必须控制两束干涉光束的相对相位、振幅和偏振。我们提出了一种独特的稳定单臂干涉仪，它专门用于记录双色干涉。该干涉仪基于光学玻璃的折射率色散。这种干涉技术能够对极化取向过程进行真正的实时非微扰监测，并且无需相位控制就能轻松实现薄膜材料的全光极化。这种新配置为实现定制的近红外相位匹配波导频率转换装置打开了大门。
