Brillouin light scattering (BLS) spectroscopy is a powerful tool for detecting spin waves in magnetic thin films and nanostructures. Despite comprehensive access to spin-wave properties, BLS spectroscopy suffers from the limited wavenumber of detectable spin waves and the typically relatively low sensitivity. In this work, we present the results of numerical simulations based on the recently developed analytical model describing plasmon-enhanced BLS. The effective susceptibility is defined for a single plasmonic nanoparticle in the shape of an ellipsoid of rotation, for the sandwiched plasmonic nanoparticles separated by a dielectric spacer, as well as for the array of plasmonic resonators on the surface of a magnetic film. It is shown that the eccentricity of the metal nanoparticles, which describes their shape, plays a key role in the enhancement of the BLS signal. The optimal conditions for BLS enhancement are numerically defined for gold and silver plasmon systems for photons of different energies. The presented results define the roadmap for the experimental realization of plasmon-enhanced BLS spectroscopy.
The advancement of Brillouin Light Scattering with the assistance of nanoplasmonic structures. Enhancement and amplification
V. Lashkaryov Institute of Semiconductor Physics of NAS of Ukraine（乌克兰国家科学院瓦·拉什卡廖夫半导体物理研究所）；Faculty of Physics, University of Vienna（维也纳大学物理学院）；Educational Scientific Institute of High Technologies, Taras Shevchenko National University of Kyiv（基辅塔拉斯舍甫琴科国立大学高等技术教育科学研究所）
Polarization-resolved measurement of forward volume spin waves by micro-focused Brillouin light scattering
CEITEC BUT, Brno University of Technology（Brno理工大学CEITEC中心）；Institute of Molecular Physics, Polish Academy of Sciences（波兰科学院分子物理研究所）；School of Physics, Hubei Key Laboratory of Gravitation and Quantum Physics, Institute for Quantum Science and Engineering, Huazhong University of Science and Technology（华中科技大学量子科学与工程研究院物理学院，引力与量子物理湖北省重点实验室）；Department of Materials Science and Engineering, Massachusetts Institute of Technology（麻省理工学院材料科学与工程系）；Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences（中国科学院物理研究所北京凝聚态物理国家研究中心）；Institute of Physical Engineering, Brno University of Technology（Brno理工大学物理工程学院）
Brillouin Light Scattering Spectroscopy of Propagating Magnons at Sub-Kelvin Temperatures
University of Vienna（维也纳大学）；Aalto University School of Science（阿尔托大学理学院）；V.G. Baryakhtar Institute of Magnetism of the NAS of Ukraine（乌克兰国家科学院V.G.巴里亚赫塔尔磁学研究所）
Elastic and structural anisotropy in silica thin films for gravitational-wave detectors
Università di Perugia（佩鲁贾大学）；Istituto Nazionale di Fisica Nucleare, Sezione di Perugia（意大利国家核物理研究所佩鲁贾分部）；Università di Genova（热那亚大学）；Istituto Nazionale di Fisica Nucleare, Sezione di Genova（意大利国家核物理研究所热那亚分部）；CNR - Istituto di Fotonica e Nanotecnologie (IFN)（国家研究委员会光子学与纳米技术研究所）；Università di Padova（帕多瓦大学）；Université de Lyon（里昂大学）；Université Claude Bernard Lyon 1（里昂第一大学）；Università di Camerino（卡梅里诺大学）
Brillouin Scattering Selection Rules in Polarization-Sensitive Photonic Resonators
Université Paris-Saclay（巴黎萨克雷大学）；CNRS, Centre de Nanosciences et de Nanotechnologies（法国国家科学研究中心，纳米科学中心）；Quandela SAS（Quandela公司）；Université Paris-Cité（巴黎西岱大学）；Institute of Physics, Carl von Ossietzky University（卡尔·冯·奥西茨基大学物理研究所）
Spin and momentum of the light fields in inhomogeneous dispersive media with application to surface plasmon-polariton waves
遵循最近发表的方法[Phys. Rev. Lett. 119，073901（2017）; New J. Phys.，123014（2017）]，我们完善并完成了复杂介质中动量和角动量统一描述的一般方案。本文给出了无耗非均匀色散介质中正则（轨道）和自旋线动量、轨道和自旋角动量方程的紧致形式，类似于布里渊能量关系。结果被应用到表面等离子体极化激元（SPP）场，微观计算支持唯象的预期。改进的一般计划正确地描述了不寻常的SPP属性（横向自旋，磁化动量），并预测奇异的动量贡献急剧本地化的金属-电介质界面，这是由微观分析证实。研究结果对结构光光学系统的设计，特别是微光学、等离子体光子学、光学分选和微操作等领域的研究具有重要意义。
University of Delaware（特拉华大学）；IMT Atlantique（大西洋高等矿业学院）；IPCMS - UMR 7504 CNRS Institut de Physique et Chimie des Materiaux de Strasbourg（斯特拉斯堡材料物理与化学研究所）
