Czaplicki R, Krupka O, Essaidi Z, El-Ghayoury A, Kajzar F, Grote J G, Sahraoui B
Opt Express. 2007 Nov 12;15(23):15268-73. doi: 10.1364/oe.15.015268.
Polymers containing azo-benzene groups are useful holographic recording materials. In these materials the efficient mixed amplitude and phase gratings, frequently accompanied with photoinduced-surface relief gratings, can be inscribed with polarized laser light. The light-induced trans-cis-trans photoisomerization of azo-benzene groups is responsible for optical anisotropy in such systems. The aim of the present work is to study the dynamics of grating inscription in Disperse Red 1 doped deoxyrbonucleic acid- hexadecyltrimethylammonium material (DR1-DNACTMA) using 16 ps laser pulses (532 nm, 1.3 mJ). Results are compared with that obtained for other polymeric matrices loaded with DR1. The dynamics of the grating growth, due to repeated pulses from picosecond laser with 10 Hz repetition rate, was probed by measuring the intensity of the first order of diffraction of a cw He-Ne. We report results in function of the light polarization of writing beams. In this paper we present the first results of the grating inscription in functionalized DNA (in the picosecond pulse regime).
含偶氮苯基团的聚合物是有用的全息记录材料。在这些材料中，高效的混合振幅和相位光栅，常常伴随着光致表面起伏光栅，可以用偏振激光写入。偶氮苯基团的光致反式-顺式-反式光异构化是此类系统中光学各向异性的原因。本工作的目的是使用16皮秒激光脉冲（532纳米，1.3毫焦）研究分散红1掺杂的脱氧核糖核酸-十六烷基三甲基铵材料（DR1-DNACTMA）中光栅写入的动力学。将结果与在其他负载DR1的聚合物基质中获得的结果进行比较。通过测量连续波氦氖激光器一阶衍射的强度，探测了由于10赫兹重复率的皮秒激光的重复脉冲导致的光栅生长动力学。我们报告了作为写入光束光偏振函数的结果。在本文中，我们展示了在功能化DNA中（皮秒脉冲 regime）光栅写入的首批结果。
