【学术报告·追远讲堂】周磊：超构表面光场调控:从界面相位到平面光学

自由调控电磁波在基础理论和实际应用(信息、能源、国防)两方面均有重大意义。然而自然材料对电磁波的调控能力十分有限。过去二十余年间，利用亚波长人工微结构构建的超构材料原则上可具有任意的介电常数和磁导率，实现了远超自然材料的卓越电磁调控能力。其中，最具突破性的进展之一是超构表面的出现——这种由人工微结构按照特定方式排列而成的平面型超构材料，彻底改变了光场调控的范式。与超构材料不同，超构表面利用电磁波在人工微结构上透/反射时的“界面相位”调控电磁波，因而具有超薄、易制备、高集成、低损耗等突出优势，一经提出即成为纳米光学的研究前沿。本报告将系统回顾从“界面相位”的提出到“平面光学”领域的建立过程，并对该领域的未来发展方向进行展望。

【学术报告·高等讲堂】姚保利：基于光场调控的光学显微成像和光学微操纵

【学术报告】Christian David：面向同步辐射和X射线自由电子激光(XFEL)应用的衍射X射线光学元件纳米加工

本报告将综述面向 XFEL 辐射应用的行射光学元件制造技术与应用进展，涵盖多种光源体系与制备工艺，光子能量范围覆盖极紫外(EUV)至硬 X射线全波段。

【学术报告·追远讲堂】胡光维：On New Frontiers of Nanophotonics

In past several decades, nanophotonics has been developing from in-lab fundamental understandings of our world towards real applications. In this talk, I will summarize our thinkings on the emerging frontiers of nanophotonics, as well as our efforts in these areas. Briefly, our thinking covers two perspectives - material platform and wavelength - from emerging low-dimensional nanomaterials to conventional optical crystals and from long-wavelength to X-ray nanophotonics.I will also briefly cover a few applications from optical information processing to miniaturized microscopy, and to nonlinear and quantum light sources and others.

【学术报告】L. Jay Guo：Optical thin film structures: two practical applications for photonics and optoelectronics, and AI-assisted design

We report a neural network model, OptoGPT, to tackle the challenge of inverse design. We introduce "structure tokens" to denote the material and thickness information and serialize a multilayer structure into a token sequence. In this way, for arbitrary optical response, the OptoGPT model can output any type of multilayer structure, with different number of layers, different materials, and thicknesses.

【学术报告】Andreij Gadelha：The Rise of Moiré Physics

This talk will cover the fundamentals of 2D materials, twistronics, and nanoscopy, ensuring that students develop a foundational understanding of these topics while being encouraged to raise their own questions in this rapidly growing and phenomenologically rich field -one full of mystery, possibility, and open challenges.

【学术报告】Woojoo Lee：How Electrons Behave in Solids:A Journey Through Quantum Materials

Why does copper conduct electricity while glass does not? What do electrons actually do inside a solid? This talk explores how quantum mechanics governs the behavior of electrons in materials.

【学术报告】Vasily Kravtsov：Strong light-matter coupling,nonlinearity,and electrostatic control in 2D semiconductors

In my talk, I will provide introduction into light-matter coupling, properties of exciton-polaritons, their nonlinearity and underlying exciton-exciton interactions. Further, I will discuss the implementation of basic experiments for probing and controlling 2D exciton-polaritons and highlight recent experimental results. Finally, if time permits, I will discuss how to create and control quantum correlated states in 2D semiconductors with electrostatic gating.

【学术报告】Kyoung-Duck Park：Fundamentals of near-field scanning probe microscopy

This lecture aims to provide undergraduate students with a conceptual understanding of the physics behind near-field optics and how advanced optical imaging can be realized beyond classical limits.