Active Photonic Platforms (APP) 2022最新文献_第5页

One-step nanoimprinting of PVA for dynamic dual-mode security metasurfaces 动态双模安全元表面的PVA一步纳米印迹

Active Photonic Platforms (APP) 2022 Pub Date : 2022-10-03 DOI: 10.1117/12.2632909

Trevon Badloe, Byoungsu Ko, Younghwan Yang, J. Rho

引用次数: 0

Hybrid quantum photonics: plasmonic speedup and single-photon emitters in SiN 混合量子光子学:等离子体加速和单光子发射体

Active Photonic Platforms (APP) 2022 Pub Date : 2022-10-03 DOI: 10.1117/12.2632726

A. Senichev, Zachariah O. Martin, Samuel Peana, O. Yesilyurt, D. Sychev, Xiaohui Xu, A. Lagutchev, A. Boltasseva, V. Shalaev

引用次数: 0

A linear passive route to transmission asymmetry with meta-gratings 用元光栅实现传输不对称的线性无源路径

Active Photonic Platforms (APP) 2022 Pub Date : 2022-10-03 DOI: 10.1117/12.2632115

S. Foteinopoulou

引用次数: 0

Femtosecond and nonlinear Fourier microscopy of emitting and amplifying metalattices 发射和放大元晶格的飞秒和非线性傅立叶显微镜

Active Photonic Platforms (APP) 2022 Pub Date : 2022-10-03 DOI: 10.1117/12.2632725

F. Koenderink

引用次数: 0

Hybrid micro-patch lasers with high alignment tolerance 具有高准直公差的混合微贴片激光器

Active Photonic Platforms (APP) 2022 Pub Date : 2022-08-23 DOI: 10.1117/12.2633273

Byoung Jun Park, Yushin Kim, Moohyuk Kim, Myung K. Kim

引用次数: 0

Exceptional point generated robust asymmetric high-order harmonics 异常点产生鲁棒的非对称高次谐波

Active Photonic Platforms (APP) 2022 Pub Date : 2022-01-19 DOI: 10.1117/12.2633818

Gui-Lei Zhu, A. Targholizadeh, Xin-You Lu, C. Yuce, H. T. D. O. Physics, Astronomy, University of Texas Rio Grande Valley, Edinburg, Texas 78539, Usa, S. O. Physics, Huazhong University of Science, Technology, Wuhan 430074, China, Department of Applied Physics, Eskisehir Technical University, Eskisehir, Turkey

{"title":"Exceptional point generated robust asymmetric high-order harmonics","authors":"Gui-Lei Zhu, A. Targholizadeh, Xin-You Lu, C. Yuce, H. T. D. O. Physics, Astronomy, University of Texas Rio Grande Valley, Edinburg, Texas 78539, Usa, S. O. Physics, Huazhong University of Science, Technology, Wuhan 430074, China, Department of Applied Physics, Eskisehir Technical University, Eskisehir, Turkey","doi":"10.1117/12.2633818","DOIUrl":"https://doi.org/10.1117/12.2633818","url":null,"abstract":"We propose a metallic-silicon system with a complex optical potential modulated along the length of the waveguide for a robust higher harmonic generation. For right moving fields when the strength of non-Hermiticity becomes equal to the real part of the optical potential, the dynamical equations associated with modal field amplitudes in our proposed system are described by a Jordan form Hamiltonian. This ultimately will allow for a unidirectional higher frequency generation which always has a maximum value for a specific length of the waveguide irrespective of the geometrical imperfections in the design of the waveguide. Furthermore, the phase of the generated higher harmonic mode becomes independent of the coupling between the fundamental frequency and higher harmonic one. Unlike other proposed spatiotemporal modulated systems when the system has a Jordan form Hamiltonian, the fundamental mode remains reciprocal while the harmonic generation is non-reciprocal. Consequently, while the proposed device cannot be used as an optical isolator it can be used for many other devices such as laser cavities, interferometry, and holographic processes.","PeriodicalId":374923,"journal":{"name":"Active Photonic Platforms (APP) 2022","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133926412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Low power continuous-wave all-optical magnetic switching in ferromagnetic nanoarrays 铁磁纳米阵列中的低功率连续波全光磁开关

Active Photonic Platforms (APP) 2022 Pub Date : 2021-12-01 DOI: 10.1117/12.2633356

K. Stenning, Xiaofei Xiao, Holly H. Holder, J. Gartside, A. Vanstone, O. Kennedy, R. Oulton, W. Branford

{"title":"Low power continuous-wave all-optical magnetic switching in ferromagnetic nanoarrays","authors":"K. Stenning, Xiaofei Xiao, Holly H. Holder, J. Gartside, A. Vanstone, O. Kennedy, R. Oulton, W. Branford","doi":"10.1117/12.2633356","DOIUrl":"https://doi.org/10.1117/12.2633356","url":null,"abstract":"All-optical magnetic switching promises ultrafast, high-resolution magnetisation control with the technological attraction of requiring no magnetic field. Existing all-optical switching schemes are driven by ultrafast transient effects, typically requiring power-hungry femtosecond-pulsed lasers and complex magnetic materials. Here, we demonstrate deterministic, all-optical magnetic switching in simple ferromagnetic nanomagnets (Ni$_{81}$Fe$_{19}$, Ni$_{50}$Fe$_{50}$) with sub-diffraction limit dimensions using a focused low-power, linearly-polarised continuous-wave laser. Isolated nanomagnets are switched across a range of dimensions, laser wavelengths and powers. All square-geometry artificial spin ice vertex configurations are written, including ground-state and energetically-unfavourable `monopole-like' states at powers as low as 2.74 mW. Usually, magnetic switching with linearly polarised light is symmetry-forbidden; however, here the laser spot has a similar size to the nanomagnets, producing an absorption distribution dependent on the relative nanoisland-spot displacement. We attribute the observed deterministic switching to the transient dynamics of this asymmetric absorption. No switching is observed in Co samples, suggesting the multi-species nature of NiFe alloys plays a role in reversal. The results presented here usher in cheap, low-power optically-controlled devices with impact across data storage, neuromorphic computation and reconfigurable magnonics.","PeriodicalId":374923,"journal":{"name":"Active Photonic Platforms (APP) 2022","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121990150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3