Статья

Periodically-modulated unipolar and bipolar orders in nematic fluids towards miniaturized nonlinear vectorial optics

Guangyang ZhangCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaLingling MaCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China. [email protected]Enjun LinGuangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou, ChinaZeyu WangCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaJintao PanCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaJidan YangCollege of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, ChinaMinghui DengGuangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou, ChinaYang WeiCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaYong YeCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaNing WangCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaYu WangCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China. [email protected]Satoshi AyaGuangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou, China. [email protected]Yanqing LuCollaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China. [email protected]

2025en

ABI

Аннотация

Complex polar topological configurations are the foundation for exploring exotic phases and nontrivial emergent phenomena in condensed-matter physics. While numerous topological configurations like skyrmions and merons are known to occur spontaneously in various materials, achieving the designability of magnetically- and electrically-polar textures in a controlled manner is a long-standing challenge in domain engineering. Here, we discover an unprecedented mesophase that exhibits unipolar and bipolar orders, where both apolar and polar orientational order parameters are modulated. The polar state enables defect-free polar patterning with designability and controllability on large scales. A case study demonstrates the facile generation of second-harmonic perfect vector beams through photopatterned topological polar liquid crystal superstructures. Remarkably, this single-layer, micrometer-thin-film device attains functionalities comparable to multiple conventional optical components, establishing a foundation for advanced nonlinear vectorial optics at the micrometer scale. Complex polar topological configurations underpin exotic phases in condensed-matter physics, but controlled design of magnetically and electrically polar textures has remained a major challenge. Authors report a new mesophase with unipolar and bipolar orders that enables defect-free, large-scale polar patterning, demonstrated by generating second-harmonic vector beams in a single micrometer-thin liquid crystal device.

Перевод пока недоступен

Идентификаторы

DOI: 10.1038/s41467-025-64463-2

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar