Abstract Investigating the nature of two-/multi-wavelength light excitation effects in optical materials such as their mechanisms, materials composition, and opto-electronic behaviors is crucial for observing the photophysical and photochemical performance for their applications. Recently, this research area has received extensive attention owing to its remarkable optical performance, capability of tunable fluorescence emission, tailorable photochemical reaction, controllable electron population, and driving of novel photophysical and photochemical phenomena, which are promising for emerging applications in broad areas of spectroscopy, photophysics, photochemistry, opto-electronics, biophysics, as well as environmental and materials science. In this work, we review recent progress in the interdisciplinary studies of photoluminescence mechanisms, emitting centers, host material system, optical setups and characterization techniques, and application fields for the optical materials by two-/multi-wavelength light excitation effects. In the first part, we introduce the latest progress of two-/multi-wavelength light excitation effects in optical materials, from their fundamentals to their applications. In the second part, we present the dominant two-/multi-wavelength excited photoluminescence mechanisms, including excited state absorption, stimulated emission depletion (STED), ground state depletion, and more STED-inspired models. Moreover, we outline recent progress in optically active centers and host material classification, and their intrinsic connections between tunable microstructures and applications for different material systems based on two-/multi-wavelength light excitation effects. Optical measurement setups and characterization techniques for broad application fields are reviewed and summarized. By emphasizing the progress of emerging photoluminescence properties in optical materials and their application prospects based on two-/multi-wavelength light excitation effects, involving three-dimensional displays, lasers, STED super-resolution nanoscopy, photolithography and optical data storage, ultraviolet bacteriostatic agents, solar cells, and optical switches are explained. Finally, we discuss the present achievements and remaining questions and provide perspectives for future research directions.

中文翻译：

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光学材料中的二/多波长光激发效应：从基础到应用

摘要 研究光学材料中二/多波长光激发效应的性质，如其机制、材料组成和光电行为，对于观察其应用的光物理和光化学性能至关重要。近年来，该研究领域因其卓越的光学性能、可调荧光发射能力、可定制的光化学反应、可控的电子布居以及驱动新型光物理和光化学现象而受到广泛关注，有望在光谱学的广泛领域应用。 、光物理学、光化学、光电子学、生物物理学以及环境和材料科学。在这项工作中，我们回顾了光致发光机制跨学科研究的最新进展，发射中心、主体材料系统、光学装置和表征技术，以及通过二/多波长光激发效应的光学材料的应用领域。在第一部分，我们介绍了光学材料中二/多波长光激发效应的最新进展，从它们的基础到它们的应用。在第二部分中，我们介绍了主要的双/多波长激发光致发光机制，包括激发态吸收、受激发射耗尽 (STED)、基态耗尽和更多受 STED 启发的模型。此外，我们概述了光学活性中心和主体材料分类的最新进展，以及它们在可调微结构与基于双/多波长光激发效应的不同材料系统应用之间的内在联系。审查和总结了广泛应用领域的光学测量设置和表征技术。通过强调基于二/多波长光激发效应的光学材料中新兴光致发光特性的进展及其应用前景，涉及三维显示、激光、STED超分辨率纳米、光刻和光学数据存储、紫外线抑菌剂、太阳能电池和光开关进行了解释。最后，我们讨论了目前的成就和遗留问题，并为未来的研究方向提供了展望。通过强调基于二/多波长光激发效应的光学材料中新兴光致发光特性的进展及其应用前景，涉及三维显示、激光、STED超分辨率纳米、光刻和光学数据存储、紫外线抑菌剂、太阳能电池和光开关进行了解释。最后，我们讨论了目前的成就和遗留问题，并为未来的研究方向提供了展望。通过强调基于二/多波长光激发效应的光学材料中新兴光致发光特性的进展及其应用前景，涉及三维显示、激光、STED超分辨率纳米、光刻和光学数据存储、紫外线抑菌剂、太阳能电池和光开关进行了解释。最后，我们讨论了目前的成就和遗留问题，并为未来的研究方向提供了展望。