Gao Tianxi, Xue Yajie, Zhang Zan, Que Wenxiu
Opt Express. 2018 Feb 19;26(4):4309-4317. doi: 10.1364/OE.26.004309.
While single wavelength all-optical information encoding through optically induced orientation of azobenzene dyes is being extensively pursued, we propose multi-wavelength optical data processing and recording based on disperse red 1 (DR1) and 4-(4-hydroxybutyloxy) azobenzene doped organic-inorganic hybrid films to increase the density of recording data. By investigating the change of absorbance spectrum of the doped film under different irradiations, results indicate a laser pulses around 470 nm would be suitable as the probe beam. In the measurement of optical data processing and recording, two cw lasers pulse at 532 nm and 355 nm induce trans-cis isomerization of the azo-dyes in the film, while the output of the probe beam record the processed data as {(-1), (0), (1)} according to different inputs of the pump beams. Since the light induced isomerization has a sensitive response in the as-prepared solid organic-inorganic matrix system, the films is promising as recording and monitoring element in all-optical devices over a wide range of repetition rates.
虽然通过偶氮苯染料的光致取向进行单波长全光信息编码正在被广泛研究，但我们提出基于分散红1（DR1）和4-（4-羟基丁氧基）偶氮苯掺杂的有机-无机杂化膜进行多波长光学数据处理和记录，以提高记录数据的密度。通过研究掺杂膜在不同照射下吸收光谱的变化，结果表明470nm左右的激光脉冲适合作为探测光束。在光学数据处理和记录的测量中，两个532nm和355nm的连续波激光脉冲诱导膜中偶氮染料的反式-顺式异构化，而探测光束的输出根据泵浦光束的不同输入将处理后的数据记录为{(-1), (0), (1)}。由于光诱导异构化在制备的固体有机-无机基质系统中具有灵敏的响应，该膜有望在宽重复率范围内作为全光器件中的记录和监测元件。
