High-efficiency terahertz beam scanning based on topologically optimized freestanding metasurfaces [0.03%]
基于拓扑优化的独立式超表面的大范围高效率太赫兹扫描技术研究
Qifan Ding,Jieyang Tang,Jierong Cheng et al.
Qifan Ding et al.
Dynamic beam scanning is an indispensable technique in the terahertz band, as the terahertz radiation is highly directive to accommodate the path attenuation. Bi-layer passive metasurfaces offer a promising way to tune the beam direction th...
Victor A Kulikov,Aidan Augustus,Nahom Worku
Victor A Kulikov
We propose a paradigm shift in the study of optical anisotropy, moving from ad hoc empirical models to a physics-based framework with predictive capability. Long-standing observations, previously described by introducing fitting parameters ...
Alexis Bougaud,Manal Arbati,Bruno P Chaves et al.
Alexis Bougaud et al.
We numerically study programmable laser cavity soliton generation within a nested cavity architecture. The nested architecture includes a fibered Fabry-Pérot resonator as well as a photonic device used as a programmable delay-line, which e...
High-range-resolution and long-distance CO2 profiling using a single-photon differential absorption lidar [0.03%]
一种基于单光子差分吸收雷达的高分辨远距离二氧化碳探测方法
Mingjia Shangguan,Simin Lin,Xianghui Guo et al.
Mingjia Shangguan et al.
Lidar has become an increasingly attractive approach for CO2 monitoring. However, simultaneously achieving long-range detection and high-range resolution remains a fundamental tradeoff. To address this issue, first, a superconducting nanowi...
Coupled plasmonic-passivation luminescence enhancement in InGaN quantum wells with Ag/AlN capping [0.03%]
银/铝氮封顶InGaN量子阱等离激元-钝化耦合发光增强效应
David S Pate,Joshua N Blum,Iftikhar Ahmad et al.
David S Pate et al.
Ag/AlN is investigated as an advantageous metal/dielectric combination for enhancing the radiative efficiency of InGaN multi-quantum well (MQW) structures via both passivation and plasmonic mechanisms. Steady-state and time-resolved photolu...
Tailoring phase domains and properties of transparent Y2O3-MgO composites via powder morphology design [0.03%]
通过粉末形貌设计调整透明Y2O3-MgO复合材料的相区和性能
Xincheng Cai,Zhenyu Zhang,Junjing Duan et al.
Xincheng Cai et al.
While spherical powders are typically favored for enhanced sintering activity, highly transparent Y2O3-MgO ceramics have recently been fabricated using rod-like powders. The underlying mechanisms by which powder morphology influences the fi...
Polarization-grating-filled Fabry-Perot resonators for optical imprinting of liquid crystals [0.03%]
填充有 polarization grating 的 Fabry-Perot 振荡器的光学印记液晶
Takuto Nakade,Hiroyuki Yoshida
Takuto Nakade
Patterned alignment of liquid crystals has been studied actively in recent years to control the behavior of light by the Pancharatnam-Berry phase. While the photoalignment technique easily allows directed alignment by linearly polarized lig...
Brillouin-Mandelstam scattering-based cooling of traveling acoustic waves from cryogenic temperatures [0.03%]
基于布里渊-曼德尔斯特姆散射的从低温对 travelling 声波的冷却
Lisa Fischer,Laura Blázquez Martínez,Changlong Zhu et al.
Lisa Fischer et al.
Thermal phonons are a major source of decoherence in quantum mechanical systems. Operating in the quantum ground state is therefore often an experimental prerequisite. Additionally, to passive cooling in a cryogenic environment, active lase...
High-density fiber Bragg grating array enabling fully distributed sensing with sub-millimeter spatial resolution [0.03%]
高密度光纤布拉格光栅列阵实现亚毫米空间分辨率的全程分布式传感
Koustav Dey,Ogbole Collins Inalegwu,Laura Bartlett et al.
Koustav Dey et al.
Distributed, cost-effective sensing with sub-millimeter spatial resolution remains critical and yet challenging for a wide range of industries, including aerospace, biomedical engineering, and additive manufacturing. In this Letter, we prop...
Reconfigurable GSST-based metasurfaces for simultaneously demultiplexing optical spin and orbital angular momenta [0.03%]
基于GSST的可重构元表面同时解复用光的自旋和轨道角动量
Kangzhun Peng,Shiqi Luo,Hengyue Luo et al.
Kangzhun Peng et al.
Light beams carrying spin angular momentum (SAM) and orbital angular momentum (OAM) have garnered significant interest owing to their potential in optical communications, imaging, and micromanipulation. Although simultaneous detection of mu...