All-optical logic circuits based on photochromic building blocks using waveguide structures

基于使用波导结构的光致变色构件的全光逻辑电路

• 批准号: 448846348
• 负责人: Professor Dr. Jürgen Köhler
• 金额: --
• 依托单位: Arbeitsgruppe Makromolekulare Chemie I
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/448846348?language=en
• 关键词: optical; logic; circuits; based; photochromic

The challenge to develop a device for signal transduction that runs on photons rather than on electrons requires materials that feature a high photochemical/photophysical stability, high fatigue resistance, a rapid response, and a thermally irreversible bistability as well as concatenation of optical input/output signals. All these properties need to be combined in one single system, which constitutes the main bottleneck towards all-optical logic circuits to date. Therefore, the main aim of the current project is to design, synthesize/assemble and spectroscopically characterize/quantify all-optical logic gates (AND, OR, NOR, NAND etc.) based on highly photostable photoswitchable dyads, triads, blends, and pendant polymers carrying differently substituted rylene dyes and photoswitchable molecules based on dithienylperfluorocyclopentenes (DCP) in thin films. These novel systems provide a platform for realising functions that are well known in the electronic world, yet where photons take over the role of the electrons. This requires adaptation of mutual excitation/emission energies of a collection of dyes and photoswitchable molecules and combinations thereof, which asks for an interdisciplinary research approach between chemistry and physics. Based on the experiences of our intensive joint work on photoswitchable systems, here we want to focus on fundamental studies towards all-optical logical gates. The realisation of this project is based on a chemistry part aimed at the synthesis of diverse photoswitchable systems involving both DCP and its emitting counterpart DCP-O4, their basic characterization using 1H-NMR, MALDI-ToF MS, UV-VIS absorption, TGA and DSC as well as cyclic voltammetry and the incorporation of the synthesized systems into films suitable for optical spectroscopy. The physics part, aims at assembling and spectroscopically characterizing all building blocks and the all-optical gates. This includes linear UV-VIS, and time-resolved spectroscopies for elucidating the energy transfer dynamics in films that accommodate combinations of dyes and photoswitches. Based on these results, optimized dye-switch combinations will be selected for realising all-optical logic gates using waveguide structures. Both parts of this interdisciplinary project are interwoven and bring in complementary skills required for the success of this project.

开发用于信号转导的设备的挑战，该设备在光子上而不是在电子上运行的设备需要具有高光化学/光学物理稳定性，高疲劳电阻，快速响应以及可热不可逆的双稳定性以及光学输入/输出信号的串联的材料。所有这些属性都需要在一个单个系统中组合，该系统构成了迄今为止朝向全光逻辑电路的主要瓶颈。 Therefore, the main aim of the current project is to design, synthesize/assemble and spectroscopically characterize/quantify all-optical logic gates (AND, OR, NOR, NAND etc.) based on highly photostable photoswitchable dyads, triads, blends, and pendant polymers carrying differently substituted rylene dyes and photoswitchable molecules based on dithienylperfluorocyclopentenes （DCP）在薄膜中。这些新型系统为实现在电子世界中众所周知的功能提供了一个平台，而光子接管了电子的作用。这需要适应染料和可拍摄分子的相互激发/发射能以及其组合，这要求化学和物理学之间采用跨学科研究方法。根据我们在可拍照系统上进行密集的联合工作的经验，我们希望将重点放在针对全光逻辑大门的基本研究上。该项目的实现是基于旨在合成涉及DCP及其发射对应方DCP-O4的化学零件的，它们使用1H-NMR，MALDI-TOF MS，UV-VIS吸收，TGA和DSC作为CORCLIC VOLTAMMETRY和SYNSERMESS的基本表征。物理部分旨在组装和光谱表征所有构建块和全光门。这包括线性UV-VIS和时间分辨光谱镜，以阐明适合染料和照片开关组合的膜中的能量传递动力学。基于这些结果，将选择优化的染料开关组合，以实现使用波导结构实现全光逻辑门。这个跨学科项目的两个部分都是交织在一起的，并带来了该项目成功所需的互补技能。