.png){kind=icon}
返回
Field programmable topological edge array
.png){kind=icon}
PRE
AI
DOI：10.1364/PRJ.482956.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Valley Hall topological photonic crystals, inspired by topological insulators in condensed matter physics, have provided a promising solution to control the flow of light. Recently, the dynamic manipulation property of topological photonic crystals has been widely studied. Here, we propose a novel solution for programmable valley photonic crystals, called field programmable topological edge array (FPTEA), based on the field reorientation property of nematic liquid crystals and robust valley-protected edge modes. FPTEA is composed of an array of graphene-like lattices with C3 symmetry, in which the birefringence of liquid crystal is larger than 0.5105. Due to the dielectric anisotropy of liquid crystals being sensitive to external fields such as light, heat, electric, and magnetic fields, each lattice is tunable, and the topological propagation routes and even the lattice parameters can be dynamically changed while changing the distribution of external fields. We numerically demonstrate three methods of composing an FPTEA device to design arbitrary passive optical devices by electric driving, thermal inducing, or UV writing. These results show the great application potential of liquid crystals in topological photonic crystals, and enrich the design of programmable integrated topological devices with broad working bandwidth ranging from microwave to visible light. (c) 2023 Chinese Laser Press
Keyword:
PHOTONIC CRYSTALS
BIREFRINGENCE
TEMPERATURE
STATES
GATES
SPIN
期刊
IF:
7.2
论文数:
2.4K
被引数:
1.3W
机构
暂无机构信息
引用论文
.png){kind=icon}
Synthesis of ene–allenes via palladium-catalyzed hydride-transfer reaction of propargylic amines under mild conditions温和条件下钯催化炔丙胺的氢化物转移反应合成烯丙二烯
PREAI
分享收藏Thermo-optical Tunable Ultracompact Chip-Integrated 1D Photonic Topological Insulator热光可调谐超紧凑芯片集成一维光子拓扑绝缘体
PREAI
分享收藏分享收藏
查看更多内容