de Oliveira Ivan, Frejlich Jaime, Arizmendi Luis, Carrascosa Mercedes
Laboratório de Optica, Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, 13083-970 Campinas-SP, Brazil.
Opt Lett. 2003 Jun 15;28(12):1040-2. doi: 10.1364/ol.28.001040.
We report what is believed to be the first direct measurement of the grating phase-shift evolution during white-light illumination for the development of a fixed grating in an Fe-doped lithium niobate crystal. Stabilized holographic recording is shown to be essential for such measurements. Experimental data are in good agreement with theory and allow computation of the relevant material parameters for the sample under analysis. The results are of the utmost relevance for understanding the advantageous behavior of oxidized samples in hologram fixing.
我们报告了据信是首次对掺铁铌酸锂晶体中用于固定光栅的白光照明期间光栅相移演变进行的直接测量。结果表明，稳定的全息记录对于此类测量至关重要。实验数据与理论高度吻合，并允许计算所分析样品的相关材料参数。这些结果对于理解氧化样品在全息图固定中的有利行为极为重要。
